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    Analysis of key traits and characteristics and issues of new varieties of Xinjiang extra-long staple cotton
    TIAN Liwen, KONG Jie, ZHENG Zipiao, ZHANG Na, LIU Jun, WANG Tianli, CUI Jianping
    2025, 62(7): 1561-1568.  DOI: 10.6048/j.issn.1001-4330.2025.07.001
    Abstract ( )   HTML ( )   PDF (896KB) ( )  

    【Objective】 This study aims to explore the key characteristics of quality, yield, and disease resistance and other key traits of Xinjiang extra-long staple (ELS) cotton varieties in the hope of providing scientific evidence for improving the approval standards and optimizing breeding directions for ELS cotton. 【Methods】 26 Xinjiang ELS cotton varieties approved by the Xinjiang Crop Variety Approval Committee were selected for a total of 6 times between 2016 and 2024, and their key trait indicators such as maturity, boll weight, lint percentage, lint yield, fiber quality (upper fiber length, strength, micronaire value, length uniformity index), and disease resistance (Fusarium wilt and Verticillium wilt disease index) were systematically evaluated. 【Results】 The results showed that the average values of the key traits for approved varieties were as follows: growth period of 131.9 days, boll weight of 3.4 g, lint percentage of 33.3%, lint yield of 1,708.1 kg/hm2, upper half mean fiber length of 39.0 mm, strength of 45.3 cN/tex, Micronaire value of 4.1, and length uniformity index of 89.0%, Fusarium wilt disease index of 4.1, and Verticillium wilt disease index of 8.6. Machine-picking adaptability, as well as resistance or tolerance to high temperatures and drought, were only sporadically described qualitatively. Compared with those between 2016-2018, the varieties approved during 2021-2024 showed significant or highly significant differences in growth period, fiber upper half mean length, and length uniformity index, all of which developed in a positive and improved direction. But there was no significant difference in other trait indicators. 【Conclusion】 Xinjiang ELS cotton varieties are typical early to mid maturity long staple cotton varieties, with overall excellent quality indicators, high yield trait indicators, and good disease resistance. However, the approval standards still need to be adjusted and optimized. It is recommended to adjust the threshold values for key trait indicators of approved varieties: growth period ≤133 days (preferably ≤130 days), boll weight >3.2 g, lint percentage ≥32.5%, lint yield ≥1700 kg/hm2, fiber length >37 mm, breaking strength ≥45 cN/tex, length uniformity ≥88.5%, micronaire value <4.2, Fusarium wilt disease index ≤5.0, and Verticillium wilt disease index ≤10.0. Additionally, new indicators, such as machine-picking adaptability (e.g., initial fruit node height for machine-picked ELS cotton), heat tolerance, and drought resistance, should be included, thus ensuring the total number of approved varieties should be reduced to at least two-thirds or even half of the current number, thereby promoting the breeding and approval of breakthrough ELS cotton varieties and fostering a new framework for the development and approval of new varieties.

    High-quality development of agriculture in Xinjiang and innovations in new plant protection technologies, new products, and new equipments
    GUO Wenchao, JIA Zunzun, Tursun Ahmat, YANG Dong, MA Kai, ZHANG Penzhong, FU Kaiyuan, DING Xinhua, WANG Xiaowu, WANG Wei, YE Xiaoqin, QIAO Xiaoyan, ZHAO Wenhui
    2025, 62(7): 1569-1585.  DOI: 10.6048/j.issn.1001-4330.2025.07.002
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    【Objective】 This study comprehensively analyzes the latest achievements in plant protection technology development in China, the comprehensive strengths and developmental potential of agricultural production in Xinjiang, as well as the plant protection problems and challenges faced, aiming to clarify the direction and implications of modern plant protection technology in Xinjiang. 【Methods】 Based on literature and statistical data analysis, this study thoroughly examined the demands of high-quality agricultural development in Xinjiang for innovation in plant protection technology. 【Results】 The study elucidated Xinjiang’s agricultural natural resources, foundational production conditions, production advantages, and developmental potential. This paper systematically introduced the latest achievements of the development of new quality productivity of plant protection in China, represented by the research and development and application of new plant protection technology, new products and new equipment across ten key areas. In addition, the critical role of plant protection disciplines and technological innovation in sustaining China’s agricultural development was highlighted, along with major challenges facing Xinjiang’s future agricultural growth, thus clarifying the demands of high-quality agricultural development in Xinjiang for plant protection technology, demonstrating that new plant protection technologies, products, and equipment were indispensable scientific supports for advancing Xinjiang’s agriculture. 【Conclusion】 This system will integrate existing domestic plant protection technologies, products, and equipment while adapting to Xinjiang’s unique agricultural characteristics. Through research and integration of innovative plant protection solutions, the goals of efficient, green, precise, intelligent, standardized and low-cost agricultural production can be achieved, thereby supporting high-quality agricultural development in Xinjiang.

    Food and cash crops column
    Screening and identification of spring wheat germplasm resources for heat resistance
    WANG Haobo, XIA Jianqiang, ZHANG Pengpeng, JIN Yongwei, ZHANG Yueqiang, GENG Hongwei
    2025, 62(7): 1586-1594.  DOI: 10.6048/j.issn.1001-4330.2025.07.003
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    【Objective】 The objective of this study is twofold: firstly, to examine the impact of elevated temperature stress treatments on the agronomic and physiological characteristics of wheat; and secondly, to identify high-quality, heat-tolerant germplasm resources. 【Methods】 In this study, we analyzed the agronomic traits of 354 spring wheat materials under normal and high temperature stress conditions in 2022 and 2023, performed principal component analysis of heat tolerance coefficients for multiple traits, and identified the heat tolerance of germplasm resources to provide a scientific basis for the selection and breeding of heat-tolerant wheat varieties. 【Results】 High-temperature stress significantly affected (P<0.05) nine characters, including plot yield, thousand grain weight, tolerance, plant height, spike length, total spikelets, SPAD, CT and NDVI, among which heat tolerance coefficients of plot yield were significantly positively correlated with tolerance and negatively correlated with plant height; total spikelets were significantly positively correlated with both plant height and spike length; and NDVI was significantly positively correlated with CT. The composite heat tolerance index H value of each line was calculated by the subordinate function method and analyzed by clustering, and 16 heat tolerant (HT), 127 moderately heat tolerant (MHT), 170 moderately heat sensitive (MHS) and 41 heat sensitive (HS) materials were identified. 【Conclusion】 High temperature stress seriously affects their growth, development and yield. Finally, 10 heat-tolerant materials, such as GCP-9643 and Ningchun 20, and 10 heat-sensitive materials, such as GCP-9670 and sw153, are screened out, which can be used as excellent genetic resources for heat-tolerant wheat breeding and provide the basic materials for creating new wheat varieties with excellent heat-tolerant characteristics.

    Control efficacy and safety of soil treatment herbicides against annual weeds in cotton fields
    WU Lili, GUO Shijian, LI Lei, WANG Xiaofei, LIU Yue, LI Guangkuo, DING Ruifeng
    2025, 62(7): 1595-1604.  DOI: 10.6048/j.issn.1001-4330.2025.07.004
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    【Objective】 To clarify the control effects of five soil treatment herbicides against annual weeds in cotton fields and their safety to cotton. 【Methods】 The field randomized block experiment were adopted. 330 g/L pendimethalin EC, 480 g/L trifluralin EC, 40% prometryn WP, 50% flumioxazin WP and 42% fluridone SC with a total of 10 treatments at different dosages were selected for the field efficacy experiment. The control effects of each treatment against annual broad-leaved weeds such as Solanum nigrum, Chenopodium glaucum, Amaranthus retroflexus, Portulaca oleracea and Abutilon theophrasti, as well as annual gramineous weeds such as Setaria viridis and Echinochloa crusgalli in cotton fields were studied to evaluate the effects of the tested herbicides on the safety of cotton emergence and yield. 【Results】 The control effects of 330 g/L pendimethalin EC, 480 g/L trifluralin EC, 40% prometryn WP, 50% flumioxazin WP and 42% fluridone SC against annual broad-leaved weeds in cotton fields were 67.91%, 59.47%, 77.20%, 78.46% and 81.13% respectively, and the control effects against annual gramineous weeds in cotton fields were 81.51%, 63.08%, 65.59%, 78.64% and 81.39% respectively. The cotton emergence rates of each treatment were between 83.13% and 88.54%, showing no significant difference from that of the CK, and the cotton yields increased by 7.39% to 26.54% compared with CK. The treatment of 330 g/L pendimethalin EC 990 g a.i./hm2 had a better control effect on annual gramineous weeds such as Setaria viridis and Echinochloa crusgalli than other treatments. The treatments of 50% flumioxazin 60 g a.i./hm2 and 42% fluridone SC 288 g a.i./hm2 had better control effects on annual broad-leaved weeds such as Solanum nigrum, Chenopodium glaucum, Amaranthus retroflexus, Portulaca oleracea and Abutilon theophrasti in cotton fields. 【Conclusion】 The treatments of 330 g/L pendimethalin EC 990 g a.i./hm2, 50% flumioxazin WP 60 g a.i./hm2 and 42% fluridone SC 288 g a.i./hm2 show preferable control effects on annual weeds in cotton fields, all of which have no negative impact on cotton emergence, and possess high safety.

    Effects of Bromus japonicus on the yield traits of wheat in desert oasis regions
    LIN Min, SHEN Yuyang, DENG Feifei, LI Guangkuo, GAO Haifeng
    2025, 62(7): 1605-1611.  DOI: 10.6048/j.issn.1001-4330.2025.07.005
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    【Objective】 To investigate the effects of Bromus japonicus density on the physiological indicators and yield traits of wheat in the hope of providng a scientific foundation for identifying control metrics for Bromus japonicus in wheat fields and developing integrated management strategies. 【Methods】 The effects of different densities of B. japonicus (0, 50, 100, 150 plants/m2) on wheat physiological indicators and yield traits were studied and various models were used to fit the functional relationship between different densities of B. japonicusand wheat yield loss rate, and the optimal model was selected. Furthermore, the economic threshold for the control of B. japonicus was analyzed based on the economic injury level. 【Results】 The height of wheat plants, the number of spikes, the number of grains per ear, the weight of 1000 grains, and the overall yield exhibited a significant negative correlation with the density of B. japonicus. At a density of 150 B. japonicus plants per square meter, the wheat yield decreased by 38.24% compared to the control group. The equation y=1.240,4x0.685,3 might more accurately represent the relationship between the density of B. japonicus and the wheat yield loss rate. A density of 0.76 plants/m2 of B. japonicus indicated the economic threshold for UAV management of this species. 【Conclusion】 Consequently, preventive measures should be taken if the sustained density of B. japonicus damage in the field exceeds 0.76 plants/m2.

    Evaluation of the effect of composite bacteria on the functional diversity of microorganisms in wheat rhizosphere soils based on principal component-membership function analysis
    GU Meiying, GE Chunhui, CHU Min, TANG Qiyong, ZHU Jing, Ghenijan Osman, YI Yuanyang, XU Wanli, ZHANG Zhidong
    2025, 62(7): 1612-1623.  DOI: 10.6048/j.issn.1001-4330.2025.07.006
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    【Objective】 Evaluation of the effect of composite bacteria on the functional diversity of microorganisms in wheat rhizosphere soils based on principal component-membership function analysis. 【Methods】 This study used a pot experiment to investigate the effects of Halomonas L6, Paenibacillus Y24 and compound bacteria L6-Y24 on rhizosphere soil physicochemical properties and microbial functional diversity of wheat in arid areas of Xinjiang. 【Results】 Compared with the control treatment, soaking seeds in L6, Y24, and L6-Y24 hadn't significant impacts on soil electricity conductivity and pH value, but soil available potassium content significantly increased by 29.17%, 47.02%, 33.93%(P<0.05), and available nitrogen content of L6-Y24 significantly increased by 21.43%(P<0.05). Studies of Biolog microbial functional diversity showed that the average absorbance values of L6, Y24 and L6-Y24 had significantly increased by 60.04%, 74.82% and 165.32%(P<0.05), respectively. The Shannon richness index of L6-Y24 had significantly increased by 15.83%. The utilization of carbohydrates, amino acids, carboxylic acids, phenolic acids, polymers and amine carbon sources by composite bacterial soaking significantly increased by 103.60%, 203.72%, 208.33%, 684.09%, 364.10% and 100.29%(P<0.05), respectively. Differentiated functional diversities of the soil microbial communities by functional strains and their complex bacteria were carbohydrates and carboxylic acids. Close relationship among the rhizosphere soil physicochemical properties and microbial function diversities in wheat soaked with growth promoting bacteria. 【Conclusion】 The composite bacteria has the best promoting effects on physicochemical properties and microbial function diversities of wheat rhizosphere soil, and can alleviate the damage caused by abiotic stresses such as salt alkali and drought.

    Effects of different proportions of zinc, boron and calcium leaf fertilizer on agronomic traits and seed yield of maize under high temperature environment
    WANG Zixuan, CAI Darun, LIU Zigang, LI Juan, CHEN Guo, LI Bo, LI Xiaorong, YANG Yang, TANG Tianyu, NIE Tengkun, HU Xia, CHEN Xunji
    2025, 62(7): 1624-1630.  DOI: 10.6048/j.issn.1001-4330.2025.07.007
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    【Objective】 To investigate the effects of foliar application of zinc, boron, and calcium fertilizers on the main agronomic traits and seed production yield of maize under high-temperature conditions in Xinjiang. 【Methods】 Maize inbred lines CXJ75 (female parent) and CXJ380 (male parent) were used as experimental materials, zinc sulfate, sodium borate, and calcium gluconate were applied as foliar fertilizers. Twelve different foliar fertilizer ratio treatments and one control (CK) treatment were established, arranged in a randomized block design. The agronomic traits and seed production yield of maize under different foliar fertilizer treatments were measured and analyzed. 【Results】(1)Different ratios of foliar fertilizers could delay the flowering period to some extent and shorten the interval between anthesis and silking. (2) The mixed application of 1% zinc sulfate, sodium borate, and calcium gluconate foliar fertilizers yielded the best results.(3)Maize yield showed a linear relationship with multiple agronomic traits, with high correlations observed with the number of kernel rows per ear, ear diameter, 100-kernel weight, seed setting rate, grain weight per ear, and the number of kernels per ear. 【Conclusion】 Under high-temperature stress during the flowering period in Xinjiang, the foliar application of a mixed fertilizer containing 1% zinc sulfate, sodium borate, and calcium gluconate (5,000 L/hm2) can effectively improve seed production yield. This findings have provided a reference for efficient, high-quality, and high-yield maize seed production in Xinjiang.

    Effects of low temperature at booting stage on antioxidant enzyme activity and yield of sword leaves of different varieties of rice
    DU Xiaojing, HOU Tianyu, ZHANG Yanhong, LI Dong, YUAN Jie, LI Jianrui, SHEN Yuxin, LI Xiaorong, WANG Fengbin
    2025, 62(7): 1631-1638.  DOI: 10.6048/j.issn.1001-4330.2025.07.008
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    【Objective】 To screen out the low-temperature tolerant varieties suitable for planting and promotion in the rice producing areas of northern Xinjiang. 【Methods】 The effects of low temperature on antioxidant enzyme activity, yield and constituent factors of rice leaves were studied by using Xinjing 8, Xinjingyi 1, Xinjingyi 7, Akita Komachi and Xindao 11 as experimental materials. 【Results】 The results showed that the POD activity of sword leaf was significantly increased in Xinjing 8 and Akita Komachi after 7 days of low temperature stress at booting stage, the POD activity of sword leaf in Xinjingyi 7 was significantly decreased, and the CAT activity of sword leaf in the three rice varieties after chilling stress was significantly reduced. The low temperature at booting stage extended the number of days of growth period of different rice varieties, significantly reduced the plant height, panicle length and single panicle weight of different rice varieties, and significantly reduced the number of grains per panicle and seed setting rate, which in turn led to the decline of theoretical rice yield. There were differences in the response of 1000-grain weight of different cultivars to low temperature stress, among which there was no difference between Xinjing 8 and Xinjingyi 1 under low temperature stress, while Qiutianxiaoding and Xindao 11 decreased under low temperature stress, and Xinjing 7 increased under low temperature stress. After low temperature stress, the theoretical yield of Qiutianxiaoding was the highest, which was 4,532.75 kg/hm2, 56.59%, 98.76%, 3.02% and 1.84% higher than those of Xinjing 8, Xinjingyi 1, Xinjingyi 7 and Xindao 11, respectively. After low temperature stress, the theoretical yield of Xindao 11 was the highest, which was 3988.30 kg/hm2, 147.41%, 94.87%, 62.68% and 13.73% higher than those of Xinjing 8, Xinjingyi 1, Xinjingyi 7 and Qiutianxiaoding, respectively. The cold tolerance coefficient of Qiutianxiaoding and xindao 11 was better than those of other varieties. 【Conclusion】 Qiutianxiaoding and Xindao 11 can be used as breeding resources with strong cold tolerance.

    Evaluation of 294 varieties of brassica rapa cruciferae germplasm for drought resistance throughout the growing season
    LUO Yutao, HOU Xianfei, GU Yuanguo, LI Qiang, MIAO Haocui, JIA Donghai, DENG Xiaojuan
    2025, 62(7): 1639-1647.  DOI: 10.6048/j.issn.1001-4330.2025.07.009
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    【Objective】 Drought is one of the main factors affecting the production of cultivated mustard rapeseed in Xinjiang. This project aims to identify the drought resistance of mustard rapeseed during the whole growth period and screen the materials with strong drought resistance, so as to provide germplasm resources and theoretical basis for drought resistance breeding. 【Methods】 In this study, 294 mustard rapeseed germlines were set up in Anningqu Experimental Base in Urumqi, Xinjiang in 2022-2023 under three treatments: normal irrigation, rewatering and drought. Plant height and yield per plant were measured. Drought resistance coefficient and average membership function were used for drought resistance identification and cluster analysis. 【Results】 Compared with total irrigation, the measurement indexes of different treatments were significantly different. The plant height and yield per plant decreased by 9.80% and 10.09% in 2022 and 19.35% and 38.07% in 2023, respectively. Drought treatment decreased by 21.05%, 20.61%, 39.82% and 57.16%, respectively. The frequencies of plant height and yield per plant with DC>0.900 under rehydration treatment and drought treatment were 54.42%, 46.26%, 18.71% and 18.37%, respectively. Furthermore, the comprehensive evaluation value of drought resistance of mustard rapeseed was calculated by means of average membership function standardization analysis, and cluster analysis was conducted on the tested varieties based on this value. Re-watering treatment and drought treatment were divided into 5 grades respectively, namely, I (strong resistance), II (resistance), III (medium resistance), IV (more sensitive) and V (sensitive). The regression model of the whole growth period of mustard rapeseed was established, and the rehydration treatment was as follows: Y=0.500X1+0.499X2; Drought treatment: Y=0.500X1+0.500X2 【Conclusion】 Six varieties CKH037, CKH087, CKH183, CKH189, CKH209 and CKH282 with strong resistance are selected through the identification of drought resistance.

    Comprehensive evaluation of sunflower hybrid commercial seed quality based on different methods
    CAI Yingying, LEI Zhonghua, XIANG Lijun, SHAO Jiakang, ZHANG Li, HUANG Qixiu
    2025, 62(7): 1648-1657.  DOI: 10.6048/j.issn.1001-4330.2025.07.010
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    【Objective】 To explore the high nutritional quality resources through the comprehensive evaluation of the seed phenotypes and nutritional composition of edible sunflower germplasm resources. This study reveals the complex interactions between sunflower seed traits and nutrients, and provides an effective reference for breeding sunflower functional improvement and developing functional leisure food. 【Methods】 The seeds harvested from 19 edible sunflower varieties were taken as the research objects, and 4 seed kernel traits and 10 nutritional composition indexes were identified and analyzed. 【Results】 The results showed that all the indexes exhibited significant differences among varieties (P < 0.01), and the grain size of the participating varieties reached the standard of wide seed kernel, with LJ371 and CS211 having high yield potential. The unsaturated fatty acid content of seed kernel of all commodities exceeded 85%, in addition, high protein variety KEYANG10, high oleic acid variety LONGSHIKUI11, high chlorogenic acid variety JK202 were screened out. Kernel width was negatively correlated with kernel percentage and positively correlated with 100-kernel weight; oleic acid content was negatively correlated with linoleic and palmitic acids; chlorogenic acid was positively correlated with vitamin E and soluble protein; and the correlation was positively correlated with vitamin E, vitamin C, and soluble protein. Chlorogenic acid was positively correlated with vitamin E and soluble protein.14 indexes into five principal components, and PC1 (25.7%) and PC2 (17.0%), which had a larger contribution rate, were used as the reference indexes to screen out the three varieties with better comprehensive evaluation, which were JSK21, JK202 and LJ367. 【Conclusion】 Systematic cluster analysis classified the participating varieties into three categories, including high soluble protein, chlorogenic acid, high oleic acid, and high oil.

    Comprehensive evaluation of drought tolerance for soybean germplasm at germination stage
    WU Yucheng, TIAN Rui, SHI Xiaolei, Shanqimike , DING Sunlei, ZHANG Hengbin, ZHAO Jing, ZHAN Yong, YAN Yongliang
    2025, 62(7): 1658-1669.  DOI: 10.6048/j.issn.1001-4330.2025.07.011
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    【Objective】 Soybean (Glycine max L.) originated from China, which was an important crop for grain, oil and forage. Drought stress inhibits soybean germination potential, germination rate, and germination index, leading to missing seedlings in the field. The elite soybean germplasms were screened in the hope of providing material basis for drought-tolerant breeding and molecular mechanism analysis. 【Methods】 218 soybean accessions, provided by National Central Asian Characteristic Crop Germplasm Resources Medium-term Gene Bank (Urumqi), were employed and five drought tolerance index, including relative germination potential, relative germination rate, relative germination index, promptness index, and damage rate were identified under 15% PEG stress. Furthermore, soybean drought tolerance was evaluated by membership function method and clustering analysis. 【Results】 The soybean germination rate, germination potential, and germination index declined to different degrees under 15% PEG stress. The ranges of the relative germination potential, relative germination rate, relative germination index, promptness index, and damage rate were 0.04-1.00, 0.41-1.00, 0.09-0.63, 0.03-1.92, and 0-58.63%, respectively. Correlation analysis showed that the relative germination potential, relative germination rate, relative germination index, and promptness index were positively correlated with each other and negatively correlated with damage rate. Furthermore, based on membership function values, 218 soybean accessions were classified into four groups: Group I, Group II, Group III and Group IV. From Group I, ten drought-tolerant germplasm were selected including No.10294, Dongnong 60, PI475810, No.3226 and FtC039. Moreover, a mathematical model (D=0.382-0.429DR+0.209RGP+0.106PI+0.238RGI) was established by stepwise regression analysis, which might be used to quickly evaluate and predict the drought tolerance of soybean germplasm during germination. 【Conclusion】 From 218 soybean accessions, ten drought-resistant varieties are screened, including No.10294, Dongnong60, PI475810, No.3226, FtC039, JiangJinQingPiDou, FtC005, Uzbekskaja-2, Union and FtC054.

    Evaluation of nutritional quality of fresh corn in Xinjiang
    ZHU Jingrong, ZHAO Yuxin, SONG Zhanteng, REN Hongsong, AN Jing, YANG Ruina, LIU Rongrong, Mairepati Yushanjiang, YANG Leilei, Pazilaiti Ainiwaer
    2025, 62(7): 1670-1676.  DOI: 10.6048/j.issn.1001-4330.2025.07.012
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    【Objective】 Fresh edible corn, which is rich in protein, amino acids, vitamins, and minerals, serves as an important resource. This study aims to systematically evaluate 31 nutritional parameters (including protein, starch, amino acids, and minerals) in nine fresh corn samples representing four varieties from five major producing regions in Xinjiang. 【Methods】 The 31 nutritional indexes (protein, starch, amino acid, mineral) were comprehensively evaluated by using analysis of variance (ANOVA) and cluster analysis. 【Results】 Black waxy corn (Jiaruize) exhibited the highest protein (4.62 g/100g), total sugar (5.80 g/100g), total amino acids (40.40 mg/g), and umami-associated amino acids content (10.43 mg/g) content (P<0.05). Its zero-amylose starch characteristic and zinc enrichment capacity (0.83 mg/100g) also provided unique processing advantages. White waxy corn (Moshangxing) demonstrated the highest VB2 (0.46 mg/100g) and total mineral content (561.29 mg/100g). 【Conclusion】 Cluster analysis categorized the nine samples into four distinct functional groups. The comprehensive evaluation identified black waxy corn (Jiaruize) from Changji as having the optimal nutritional quality.

    Assess ment of drought resistance and choice of sweet potato varieties
    ZHAO Yuex, LUO Zhengqian, WANG Qingqing, XU Linli, WANG Xian, XIANG Li, YU Yuexhua, LIU Enliang
    2025, 62(7): 1677-1686.  DOI: 10.6048/j.issn.1001-4330.2025.07.013
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    【Objective】 To study the difference of drought resistance of sweet potato germplasm resources in Xinjiang under drought environment and to screen suitable drought resistant varieties, which have provided important resources for sweet potato breeding and production in arid region of Xinjiang. 【Methods】 52 imported sweet potato germplasm resources and normal irrigation variety Chaotuou 1 were taken as materials and a field experiment was conducted in the experimental field of Xinjiang Academy of Agricultural Sciences in 2024. The experiment design included normal irrigation control group (CK) and natural drought treatment group (T). 9 key indicators were systematically evaluated in this study: Agronomic traits such as vine length, base branching number, stem diameter and yield, physiological indexes such as relative water content, malondialdehyde (MDA), proline (PRO), superoxide dismutase (SOD) and peroxidase (POD), combined with yield performance. The comprehensive drought resistance evaluation system was constructed by comprehensive drought resistance coefficient (CDC), membership function method (D-value), principal component analysis, grey correlation degree and cluster analysis. 【Results】 The response degree of the selected indexes to drought stress was more obvious than the sensitive response. Under drought stress, all indexes had different degrees of change, and the difference was large. Principal component analysis summarized the 9 indexes into 5 comprehensive indexes. The D-value distribution range was between 0.189 and 0.726. The relative water content was the most closely related to drought resistance. The D-value cluster analysis divided the germplasm into 5 drought-resistant grades, with 14 highly resistant varieties, There were 11 rather high resistant varieties, 9 medium resistant varieties, 13 sensitive varieties, and 5 sensitive varieties. 【Conclusion】 14 high-resistant germplasm, including Jiyuan 2, Ning E27-5 and Zheng Hong 32, are screened out.

    Phenotypic characterization and evaluation of tomato germplasm resources resources of Xinjiang
    LI Yushan, MA Yue, ZHANG Yukun, TIAN Chao, ZHAO Lianjia, WANG Fengqin, LI Zhongqing, WANG Fan, QING Quan, SONG Yu
    2025, 62(7): 1687-1696.  DOI: 10.6048/j.issn.1001-4330.2025.07.014
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    【Objective】 To provide resources and theoretical references for tomato genetic improvement by conducting phenotypic characterization and comprehensive evaluation of tomato germplasm resources collected during the "Third National Census and Collection of Crop Germplasm Resources in Xinjiang Uygur Autonomous Region" and the "Systematic Investigation and Rescue Collection of Crop Germplasm Resources in Xinjiang." 【Methods】 Phenotypic traits across the entire growth period of 137 tomato germplasm accessions were measured. Genetic diversity analysis, variation analysis, correlation analysis, and principal component comprehensive evaluation were employed to assess the diversity of tomato resources collected in Xinjiang’s Third National Census (hereafter "Third Census") and to screen elite germplasm with superior quality. 【Results】 Taxonomic classification revealed that over 90% of the collected tomato resources were indeterminate-growth fresh-market large-fruited tomatoes, while 5% were determinate-growth processing tomatoes. Fruit traits and flavor quality traits exhibited the highest genetic diversity, with fruit shape showing the highest genetic diversity index (1.432) and locule number displaying the largest coefficient of variation (43%). Cluster analysis based on comprehensive flavor quality scores classified the germplasm into seven major groups. Groups I and III comprised high-quality cherry tomato resources, while Group II included elite large-fruited tomato resources. These groups represented valuable germplasm and molecular breeding materials for high-quality tomato breeding. 【Conclusion】 This study has elucidated the phenotypic diversity of tomato germplasm resources collected during the Third National Crop Germplasm Census of Xinjiang. We have identified cherry tomato germplasm and large-fruited tomato germplasm with superior flavor quality.

    Cotton column
    Comprehensive evaluation of salt tolerance of cotton germplasm resources at germination stage
    ZHANG Tianyu, ZHENG Zipiao, WEI Xin, ZHANG Dawei, Arman Ablimet, WU Mingzhe, MA Jun, JIAO Yang, YANG Liyun, LIU Yuanyuan, MA Qingqian, CHEN Qin, XU Haijiang
    2025, 62(7): 1697-1708.  DOI: 10.6048/j.issn.1001-4330.2025.07.015
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    【Objective】 To identify and evaluate the salt tolerance of 180 upland cotton germplasm resources at germination stage, screen excellent germplasm, and provide resource materials for the creation of new salt-tolerant germplasm. 【Methods】 In this study, 150 mmol/L NaClsolution was used to simulate salt stress, and 180 germplasm resources were identified and screened for salt tolerance during seed germination. And then, the salt tolerance of these resources was evaluated by principal component analysis and membership function method. 【Results】 Four comprehensive indexes were obtained by principal component analysis, and the comprehensive evaluation D value of salt tolerance was calculated according to the weight. The 180 germplasm resources were divided into five categories by cluster analysis. 【Conclusion】 There are significant differences in relative germination potential and relative germination rate among 180 germplasm resources under salt stress and ten salt-tolerant materials and 31 salt-sensitive materials are obtained by screening.

    Research on the optimal combination of plant growth regulators based on quadratic universal rotation combination
    YANG Liu, TANG Guangmu, LIU Jiao, ZHU Jie, GUO Keyu, ZHANG Yunshu, MA Haigang, XU Wanli
    2025, 62(7): 1709-1719.  DOI: 10.6048/j.issn.1001-4330.2025.07.016
    Abstract ( )   HTML ( )   PDF (1232KB) ( )  

    【Objective】 In order to investigate the effects of compound sodium dinitrophenol (CSN), plant polysaccharides (DSK), succinyl (D2), and compound nanooxygen (FN-6) on the stress resistance of cotton plants, the optimal combination ratio is going to be sought. 【Methods】 This study used a quadratic universal rotation combination design to determine the content of plant peroxidase (POD), catalase (CAT), superoxide dismutase (SDO), malondialdehyde (MDA), and indoleacetic acid (IAA). Design Expert 13 was used to establish a functional model for it. F-test was used to analyze the significance of each regression model and regression coefficient. Afterwards, the model would be used to analyze the effect of PGR application on plant enzyme activity and endogenous IAA content and entropy weight method was used to select plant POD activity as a representative indicator to simulate and screen the optimal combination plan for its regression model. Then the optimal application ratio was obtained. At the same time, the optimization results of representative indicators were verified through four comprehensive evaluation methods: TOPSIS method (Ci), entropy method (Si), factor analysis (ε j), and rank sum ratio comprehensive evaluation method (RSR). The consistent results showed that the best application effect was achieved at the zero level, and the application amount could affect plant enzyme activity and endogenous IAA content. 【Results】 With the increase of PGR application, the activities of POD, SOD, CAT and endogenous IAA in plants showed a trend of first increasing and then decreasing, while the MDA content showed a trend of first decreasing and then increasing. The impact of various factors on plant POD activity was as follows: DSK>FN-6>CSN>D2, the impact on plant CAT was as follows: FN-6>CSN>DSK>D2, and the impact on plant SOD, MDA, and endogenous IAA content was as follows: CSN>DSK>FN-6>D2. 【Conclusion】 Through experimental simulation, the optimal application plan is CSN: 446.04-448.73 mg/hm2 FN-6:526.28-528.96 mg/hm2, DSK:526.28-528.96 mg/hm2, D2:446.04-448.73 mg/hm2.

    The mechanism of soil salt leaching under spring irrigation with drip water under saline alkali plastic film
    CHEN Jing, PU Shenghai, WANG Zeyu, LIU Xiaoli, XU Juanjuan, GOU Yanru, XU Yongmei, LI Ning, MA Xingwang
    2025, 62(7): 1720-1730.  DOI: 10.6048/j.issn.1001-4330.2025.07.017
    Abstract ( )   HTML ( )   PDF (1569KB) ( )  

    【Objective】 The large quota border irrigation winter and spring irrigation with salt and alkali pressure model is difficult to support the sustainable development of soil and water resources in the northwest oasis. In veiw of this, this research aims to explore a drip spring irrigation method with efficient water use as the goal which might help reduce the quota of saline alkali land leaching. 【Methods】 By conducting field experiments, the distribution of soil salinity and base ions in the 0-100 cm soil layer was compared under different rinsing quotas (W1: 750 m3/hm2, W2: 1,125 m3/hm2, W3: 1,500 m3/hm2, W4: 1,875 m3/hm2, W5: 2,250m3/hm2) under drip spring irrigation, with 2,250 m3/hm2 as the control. 【Results】 The results showed that the salt content in the soil profile showed a narrow row<wide row<between films, and with the increase of leaching quota, the salt content in the same soil layer depth showed a decreasing trend. Under the drip spring irrigation method, the desalination rate inside the membrane was higher, while the desalination rate between membranes was lower; Compared with border irrigation, the desalination rate showed as follows: within film>border irrigation>between films; The overall performance was that the desalination rate of drip irrigation was higher than that of border irrigation. Under the irrigation quota of 2,250 m3/hm2, the desalination rate of drip irrigation was 61.77% higher than that of border irrigation. After spring irrigation with drip water, the content of ${\mathrm{SO}}_{4}^{2-}$, Ca2+, Cl-, and Na+decreased. 【Conclusion】 In areas with stable water supply and complete drip irrigation systems for groundwater or surface irrigation, using drip spring irrigation instead of traditional border irrigation can not only reduce spring irrigation quotas by 20%, but also significantly improve desalination rates to 67.9%, creating a more suitable salt environment for crop growth.

    Species identification and phylogenetic analysis of thrips infesting common weeds around cotton fields in Xinjiang
    ZHANG Benjie, WANG Dongmei, LI Xiaowei, YAO Yongsheng, PAN Hongsheng
    2025, 62(7): 1731-1742.  DOI: 10.6048/j.issn.1001-4330.2025.07.018
    Abstract ( )   HTML ( )   PDF (2010KB) ( )  

    【Objective】 Thrips is significant piercing-sucking pests of cotton and other crops, with weeds serving as important intermediate hosts. Identifying thrips species infesting common weeds around cotton fields in Xinjiang provides valuable insights for the comprehensive prevention and control of the plant in cotton cultivation. Additionally, this knowledge facilitates the scientific and rational management of weeds around cotton fields to promote the conservation of natural enemies. 【Methods】 25 thrips samples were collected from 19 common weed species around cotton fields in Bole and Hutubi counties in northern Xinjiang, as well as Korla city in southern Xinjiang, during June and July, prior to the migration of thrips into the cotton fields. The samples were identified based on external morphological characteristics and DNA barcoding of the Cytochrome oxidase subunit I (COI) gene. Interspecific genetic distances were calculated using the Kimura-2-parameter model, and a phylogenetic tree was constructed using the Neighbor-Joining method. 【Results】 The results showed that Frankliniellaintonsa (Trybom) was thepredominant thrips species collected from the most common weed hosts in Xinjiang. Additionally, Odontothrips loti (Haliday) was also found on Medicago sativa L., and Apocynumvenetum L. Psilothrips sp., belonging to the genus Psilothrips, were found on Kalidiumfoliatum (Pall.) Moq. Furthermore, neighbor-joining phylogenetic analysis demonstrated that F. intonsa collected from diverse common weeds across different locations formed a distinct cluster, closely related to those obtained from rape and cotton plants, with minimal interspecific genetic distance. 【Conclusion】 Multiple common weeds around cotton fields in Xinjiang serve as hosts for F. intonsa, which infests both these weeds and cotton. The distribution of F. intonsa on a variety of common weeds and cotton in Xinjiang is not influenced by geographical isolation or host specificity.

    Optimization of drip irrigation parameter combinations for salinized cotton fields
    LUO Youyang, XIE Xiangwen, YANG Pengnian, Milixiati Minadola, XU Yongmei
    2025, 62(7): 1743-1754.  DOI: 10.6048/j.issn.1001-4330.2025.07.019
    Abstract ( )   HTML ( )   PDF (2023KB) ( )  

    【Objective】 To clarify the optimal drip irrigation parameter combinations for salinized cotton fields in Karamay, northern Xinjiang. 【Methods】 Two irrigation quotas (W1: 52.5 mm, W2: γh(S0-S1)/K mm) and four emitter flow rate × emitter spacing combinations (T1: 1.4 L/h×20 cm, T2: 2.0 L/h×30 cm, T3: 2.4 L/h×30 cm, T4: 2.7 L/h×30 cm) were set in the experiment and the interactive effects of these combinations on multiple indicators, including soil water-salt dynamics, crop growth, and yield, were analyzed. Meanwhile, multi-level weighting system was established using the Analytic Hierarchy Process (AHP) and the CRITIC weighting method to evaluate 11 indicators across three categories. Game theory-based combination weighting was applied to determine the final weights for single indicators. A fuzzy matter-element model was used to construct a comprehensive evaluation system for drip irrigation parameter combinations in salinized cotton fields. Furthermore, a mathematical model for soil water-salt interaction under different drip irrigation parameters was developed with the dual objectives of salinity control and high yield. 【Results】 Irrigation quota and emitter flow rate significantly affected salinity leaching efficiency, crop growth, and yield (P < 0.05). Increasing the leaching quota effectively enhanced root zone water content and salinity leaching efficiency. The optimal values for each indicator were observed under the W2 irrigation quota, with trends showing an initial increase and subsequent decrease as the emitter flow rate increased. Among the treatments, T2 outperformed T3 in lower root zone salinity leaching efficiency and plant height. However, under the comprehensive evaluation system, T3W2 was identified as the optimal drip irrigation parameter combination. 【Conclusion】 The optimal irrigation volume and emitter flow rate to be 5,631 m3/hm2 and 2.3 L/h, respectively.

    Fruits and vegetables and processing column
    A preliminary study on the enhanced salt tolerance of β-aminobutyric acid (BABA) in processed tomato seedlings
    LI Xianguo, WANG Zepeng, CHEN Zhaolong, YU Qinghui, LI Ning, YAN Huizhuan
    2025, 62(7): 1755-1764.  DOI: 10.6048/j.issn.1001-4330.2025.07.020
    Abstract ( )   HTML ( )   PDF (1286KB) ( )  

    【Objective】 To investigate the effect of β-aminobutyric acid on the application of processed tomato under different salt stresses, and to screen the optimal concentration of β-aminobutyric acid. 【Methods】 The effects of β-aminobutyric acid on the agronomic traits and physiological indexes of two processed tomatoes 'Xinhong 49' and 'Tunhe 5501' under different salt stresses were studied by root irrigation at different concentrations of β-aminobutyric acid during the seedling stage of processed tomatoes under different salt stresses. 【Results】 The application of β-aminobutyric acid under different salt stresses could significantly increase the plant height, leaf area, relative chlorophyll content, MDA content and three protective enzyme contents of the two processed tomatoes, and there were significant differences in the index changes between the concentrations of different β-aminobutyric acids. 【Conclusion】 Applying 0.5 mmol/L β-aminobutyric acid can effectively alleviate the salt damage of NaCl to tomato and enhance the activity of its antioxidant system. 1.0mmol· L-1 BABA can effectively alleviate the salt damage of NaHCO3 to tomato, promote the growth and development of tomato, and improve its salt tolerance.

    Analysis of the genetic patterns of capsaicin and pungency index in fruits of F2 intergeneric hybrid populations of chili peppers
    FAN Zhixin, ZHANG Kuan, MA Xinyun, SHI Linyuan, Baihetiar Muhetal, ZHANG Guoru, TANG Yaping, YANG Shengbao
    2025, 62(7): 1765-1773.  DOI: 10.6048/j.issn.1001-4330.2025.07.021
    Abstract ( )   HTML ( )   PDF (1249KB) ( )  

    【Objective】 To analyze the genetic patterns of capsaicinoids and carotenoids in chili fruits by using F2 generation self-pollinated lines, investigate the segregation ratios of traits in the F2 generation, and provide theoretical basis for breeding high-capsaicinoid and high-carotenoid chili varieties and creating germplasm resources. 【Methods】 By crossing parental lines to produce an F1 population, followed by single plant self-pollination of the F1 generation to establish the F2 generation population. The capsaicinoids and carotenoids contents in the F2 population were analyzed according to national standards, and the genetic patterns of these traits were studied. 【Results】 The coefficient of variation for capsaicinoid substances in chili fruits was over 60%, while for carotenoids it was 28.45%. In the F2 population, using the maternal line as a reference, the segregation ratio for capsaicinoids was 26∶1, for carotenoids it was 1∶1, and for capsaicinoids it was 35∶13∶5∶2∶1. 【Conclusion】 Interspecific hybridization can be used for creating germplasm resources and breeding high-capsaicinoid and high-carotenoid varieties; however, multiple gene loci influence the levels of capsaicinoids and carotenoids in chili fruits.

    Prediction model of sulfur dioxide accumulation in fresh grape stalk
    MA Caiyun, XING Shijun, YUAN Yuyao, ZHANG Zheng, WANG Man, WEI Jia, WU Bin
    2025, 62(7): 1774-1783.  DOI: 10.6048/j.issn.1001-4330.2025.07.022
    Abstract ( )   HTML ( )   PDF (1388KB) ( )  

    【Objective】 Thus laying a theoretical foundation for the accumulation of SO2 in grapes based on linear regression analysis. 【Methods】 Eleven grapes, including Flame Seedless, Summer Black, Manicure Finger, Thompson Seedless, Kyoho, Red Globe, Sweet Sapphire, Sunnny Rose, Munage, Crimson, Zizhenxiang, were studied by using correlation and multiple linear regression analysis methods to explore the relationship between stem length, width, surface area, water content, skin hole area and SO2 accumulation in fruit stalks. 【Results】 The Pearson correlation showed that water content and skin hole area were positively correlated with SO2 accumulation in fruit stalks. The multiple linear regression equation for predicting SO2 accumulation in fruit stem was constructed by fumigation concentration (X1), moisture content (X2) and skin hole area (X3). The cumulative prediction model Y= 0.31X1 + 1,214.08X2 + 1,261.34X3-1,040.50 was obtained. The coefficient of determination (R2) of the regression equation was 0.962, The F test of significance corresponds to a P of 0, and the independent variable had a limiting influence on the dependent variable (P < 0.01). The results of regression standardized residual analysis showed that the equation conformed to normal distribution and had a high degree of fit. The average relative error between the predicted value and the actual value of the model was 0.04%, which was a low error. 【Conclusion】 The prediction structure of water content and SO2 accumulation in fruit stem by using multiple linear regression model is more accurate, the error is lower, and it has high feasibility.

    Effects of different yeast fermentations on the quality of Xinjiang peach wine
    WANG Zhize, TAN Huilin, ZHU Youjuan, LI Juan, NIU Guiyang, ZHANG Zhidong, WANG Lilin
    2025, 62(7): 1784-1793.  DOI: 10.6048/j.issn.1001-4330.2025.07.023
    Abstract ( )   HTML ( )   PDF (1032KB) ( )  

    【Objective】 In order to screen suitable fermentation strains of Saccharomyces cerevisiae for Xinjiang peach fruit wine. 【Methods】 Xinjiang peaches were used as raw materials, and seven strains of commercial yeasts were selected to ferment the fruit wine. And then, the physicochemical indicators, antioxidant substance content, DPPH, and superoxide anion scavenging rates were measured. During the process, Principal Component Analysis (PCA) was employed for analysis and comprehensive evaluation. Additionally, sensory flavor evaluation was conducted using the fuzzy comprehensive evaluation method. 【Results】 Significant differences were observed in the physicochemical properties and sensory characteristics of Xinjiang peach fruit wines prepared using different commercial yeasts. The total acid content of the fruit wine fermented by the SB yeast was the lowest at 4.8 g/L, while that of the PE yeast was the highest at 7.5 g/L. The total polyphenol content of the fruit wine made with the RW yeast was the lowest at 143.4 mg/L, whereas that of EC yeast was the highest at 214.7 mg/L. The cumulative contribution rate of the three principal components reached 80.904%, which adequately reflected the overall quality of the fruit wines, with the highest ranking achieved by the wine fermented using SB yeast.The wine sample fermented by the SB yeast had the highest score of 85.1, while the sample with yeast BV818 had the lowest score of 68.9. 【Conclusion】 SB yeast is more suitable for the production of Xinjiang peach wine, as the wine it produces has the best quality and flavor.

    Extraction of β-carotene and antioxidant activity of Lycium barbarum dander by stochastic center-of-mass mapping optimization method
    LIANG Lixian, MENG Xintao, LIU Yiming, ZHANG Ting, MA Yan, XU Mingqiang, PAN Yan
    2025, 62(7): 1794-1802.  DOI: 10.6048/j.issn.1001-4330.2025.07.024
    Abstract ( )   HTML ( )   PDF (1146KB) ( )  

    【Objective】 The aim of this study is to optimize the better extraction process of β-carotene from the skin residue of Xinjiang Lycium barbarum in order to promote the comprehensive utilization of Xinjiang Lycium barbarum resources.Provides theoretical basis and technical support for the high-value utilization of Lycium barbarum dregs. 【Methods】 Anhydrous ethanol was used as the extraction solvent, and the effects of material-liquid ratio, temperature, time, and the number of extraction times on the extraction amount of β-carotene from the skin dregs of Lycium barbarum were investigated. The extraction process was optimized by Random Centroid Optimization (RCO), and then the better extraction conditions were determined. In addition, the antioxidant capacity of β-carotene against DPPH radicals and ABTS radicals was also determined. 【Results】 The optimized parameters of the best extraction process were: material-liquid ratio 1∶16 g/mL, temperature 48℃, time 41 min, and number of extractions twice. Under these conditions, the extracted amount of β-carotene reached 0.53 mg/g. β-carotene showed good antioxidant ability, and the scavenging rates of DPPH and ABTS radicals were 60.89% and 66.11% at a mass concentration of 1.0 mg/mL, respectively. 【Conclusion】

    Analysis of key volatile flavor compounds of sesame Nann by HS-SPME-GC-MS coupled with electric-sense technology
    MAO Hongyan, Zulipiya Maimaiti, WANG Jiamin, YUE Li, YU Ming
    2025, 62(7): 1803-1811.  DOI: 10.6048/j.issn.1001-4330.2025.07.025
    Abstract ( )   HTML ( )   PDF (1310KB) ( )  

    【Objective】 To study the volatile components of Xinjiang Nann and provide data support for its industrial production. 【Methods】 Electronic nose (E-nose), electronic tongue (E-tongue) and headspace solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) combined with relative odor activity value (ROAV) were used to evaluate the volatile components and key aroma components of Xinjiang sesame Nann. 【Results】 The results showed that the electronic nose could effectively distinguish the volatile components in different Xinjiang Nann; the electronic tongue could not effectively distinguish the taste of different Xinjiang sesame Nann. A total of 161 volatile compounds were detected by HS-SPME-GC-MS, including 40 alkanes, 8 olefins, 3 alkynes,19 aldehydes, 29 alcohols, 15 ketones, 15 esters, 8 acids, 12 pyrazines,12 other compounds and 41 common volatile flavor compounds. ROAV analysis showed that (E)-nonenal, (E, E)-2, 4-decadienal were the key volatile substances of sesame Nann. Heptyl, nonaldehyde, 3-methylthiopropanal, phenylacetaldehyde, 3-hydroxy-2-butanone, isoamyl alcohol, n-hexanol and heptyl alcohol had important modification effects on the flavor of sesame Nann. 【Conclusion】 GC-MS technology combined with electronic nose and electronic tongue was the technical support for the analysis of volatile characteristics of staple Nann, and provided theoretical reference for the industrial production of Nann.

    Agricultural machinery equipment column
    Study on mechanical characteristics of stem of Apocynum apocynum L. during overwintering dormancy
    DING Yewei, LIU Yanbin, YANG Huimin, CHEN Yifei, CHEN Tiaotiao, LIANG Zhenwei, LUO Wenjie, WANG Xuenong
    2025, 62(7): 1812-1820.  DOI: 10.6048/j.issn.1001-4330.2025.07.026
    Abstract ( )   HTML ( )   PDF (1546KB) ( )  

    【Objective】 To study the physical characteristics of Apocynumapocynum and test the mechanical characteristics of stem in the hope of providing theoretical basis for the design of the Apocynum apocynum binder harvester. 【Methods】 The plant typecharacteristics and stem structure were observed and determined.Then the effects of stem diameter, phloem and loading speed on mechanical properties of Apocynum apocynum stem were studied by means of statistical data analysis. 【Results】 There was no yield stage in stem deformation during overwintering dormancy. The radial compressive load and radial compressive elastic modulus of the skinned and skinless stems first increased with the increase of diameter and then decreased slowly, and the skinned stems were larger than the skinless stems. The bending load and elastic modulus of stem increased and decreased with the increase of stem diameter. The shear load increased with the increase of stem diameter, and the shear energy consumption decreased and increased with the increase of loading speed and stem diameter, respectively. The influence of stem diameter on shear energy consumption decreases with the increase of loading speed. 【Conclusion】 It is necessary to consider the influence of stem structure, high cutting speed, tool front force, high hardness and high wear-resistant materials, cutting angle optimization and other design principles in the design and development of Apocynum apocynum binder harvester.