Effects of different row spacing and defoliant on cotton defoliation

doi:10.6048/j.issn.1001-4330.2025.03.004

Xinjiang Agricultural Sciences ›› 2025, Vol. 62 ›› Issue (3): 546-555.DOI: 10.6048/j.issn.1001-4330.2025.03.004

• Crop Genetics and Breeding·Cultivation Physiology·Physiology and Biochemistry • Previous Articles Next Articles

Effects of different row spacing and defoliant on cotton defoliation

XU Shouzhen¹(), MA Qi¹, NING Xinzhu¹, LI Jilian¹, SU Junji², HAN Huanyong¹, WANG Fangyong¹, LIN Hai¹()

1. Cotton Research Institute, Xinjiang Academy of Agricultural and Reclamation Science/Northwest Inland Region Key Laboratory of Cotton Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs/Key Laboratory of Cotton Genetic Improvement and High Yield Cultivation in Xinjiang Production and Construction Corps, Shihezi Xinjiang 832000, China
2. College of Life Science and Technology, Gansu Agricultural University/State Key Laboratory of Arid Land Crop Science, Lanzhou 730070

Received:2024-09-12 Online:2025-03-20 Published:2025-05-14
Correspondence author: LIN Hai
Supported by:
Cultivation and Demonstration Application of New Early-Maturing and Disease-Resistant Cotton Varieties in Southern Xinjiang(2023ZD0404106);College-Level Project of Xinjiang Academy of Agricultural Reclamation Sciences(2023YJ003);Major Science and Technology Projects of Xinjiang Uygur Autonomous Region(20241123752);National Natural Science Foundation of China(32260540);Major Science and Technology Projects of Xinjiang Uygur Autonomous Region(2023A2003-3);Innovation Team for Germplasm Resources Creation and New Variety Breeding of High-Quality Machine-Harvested Cotton(NCG202231);National Natural Science Foundation of China(32260522);The Key Research and Development Tasks of Xinjiang Uygur Autonomous Region(2022B02052-2);Leading Talents of Scientific and Technological Innovation ' Tianshan Talents

不同行距和脱叶剂对棉花脱叶效果的影响

徐守振¹(), 马麒¹, 宁新柱¹, 李吉莲¹, 宿俊吉², 韩焕勇¹, 王方永¹, 林海¹()

1.新疆农垦科学院棉花研究所/农业农村部西北内陆区棉花生物学与遗传育种重点实验室/新疆生产建设兵团棉花改良与高产栽培重点实验室,新疆石河子 832000
2.甘肃农业大学生命科学技术学院/省部共建干旱生境作物学国家重点实验室,兰州 730070

通讯作者: 林海
作者简介:徐守振(1990-),男,新疆石河子人,助理研究员,研究方向为棉花育种与栽培,(E-mail) xu.shouzhen@foxmail.com
基金资助:
南疆早熟抗病棉花新品种培育及示范应用(2023ZD0404106);新疆农垦科学院院级项目(2023YJ003);新疆维吾尔自治区重大科技专项(20241123752);国家自然科学基金项目(32260540);新疆维吾尔自治区重大科技专项(2023A2003-3);优质机采棉种质资源创制与新品种选育创新团队(NCG202231);国家自然科学基金项目(32260522);新疆维吾尔自治区重点研发任务专项(2022B02052-2);科技创新领军人才“天山英才”

Abstract

Abstract:

【Objective】To reveal the physiological and ecological mechanism of the synergistic improvement of cotton plant row spacing configuration and defoliation ripening effect, reduce machine-picked impurities and improve the quality of raw cotton. 【Methods】Jinken 1643 was used as the experimental material, and the main row spacing configuration and defoliant in the northern Xinjiang cotton area were selected. The two-factor split-plot design was used in the project and the main area was the row spacing configuration, which was P₆: Wide-narrow row-spacing configuration, the row spacing configuration was 66 cm + 10 cm and P₃: Uniform row-spacing configuration, the row spacing configuration was 76 cm; the sub-area was sprayed with different defoliants, which were TR: Ruituolong (80% thidiazuron) and T : Xinthili (thidiazuron · ethephon suspension). By measuring the defoliation rate, miscellaneous leaf rate, boll dehydration rate, cotton boll opening rate and fiber quality of cotton plants under different treatment combinations, the effect of row spacing configuration on defoliation and ripening of cotton spraying different defoliants was discussed. 【Results】The main time period for the efficacy of the defoliant was 0-15 days after spraying the agent. The defoliation and boll opening effect of Xinthili on cotton was more rapid (0-10 d), and the defoliation rate and defoliation rate were high, the dehydration rate of cotton boll was high, and the net boll opening rate was high under the treatment of one film and six lines, which could rapidly promote defoliation and boll opening, but it would cause a significant increase in miscellaneous leaf rate and damage to the length of upper cotton boll fiber. However, under the treatment of one film and three lines, the effect of spraying Xinthili on defoliation and boll opening was poor. The defoliation and boll opening effect of Ruituolong on cotton was weak at the initial stage (0-5 d), and it mainly played a role after application (5-15 d). Although the defoliation rate and boll opening rate of cotton were slow under the treatment of one film and three lines, the final defoliation rate was not significantly different from other treatments, and it would not cause damage to cotton fiber length and increase of miscellaneous leaf rate. But the effect of spraying Ruituolong on defoliation and boll opening was poor under the treatment of one film and six lines. 【Conclusion】In summary, Xinseli has better and faster defoliation and boll opening under the configuration of one film and six rows, but it would cause the increase of raw cotton leaf impurities and the decrease of upper cotton boll fiber quality. Under the configuration of one film and three lines, the defoliation and boll opening effect of Ruituolong is relatively slow, but the final defoliation and boll opening effect is still high, and it would not cause the increase of leaf impurities and the decrease of fiber quality.

Key words: cotton; row spacing configuration; defoliator; defoliation effect; fiber quality

摘要：

【目的】研究不同行距配置和脱叶剂对棉花脱叶效果的影响,为减少机采杂质和提高原棉品质提供参考。【方法】以金垦1643为材料,选用新疆北疆棉区主推的行距配置方式及脱叶剂,采用双因素裂区设计,主区为行距配置方式,分别为P₆:1膜6行,行距配置为(66 cm+10 cm)和P₃:1膜3行,行距配置为等行距76 cm;副区为喷施不同脱叶剂,分别为T_R:瑞脱龙(80%噻苯隆)和T_S:欣噻利(50%噻苯·乙烯利悬浮剂)。测定不同处理组合下棉株脱叶率、杂叶率、棉铃脱水速率、棉花吐絮率及纤维品质等指标,探讨行距配置对棉花喷施不同脱叶剂的脱叶催熟效果。【结果】脱叶剂发挥药效的主要时间段为喷施药剂后的0~15 d。欣噻利在棉花上的脱叶及吐絮效果更加迅速(0~10 d),且在1膜6行处理下脱叶率及脱叶速率高、棉铃脱水率高、净吐絮率高,可快速促进脱叶吐絮,但会造成杂叶率的显著增加及上部棉铃纤维长度的损伤;而在1膜3行处理下喷施欣噻利脱叶吐絮效果较差。瑞脱龙在棉花上的脱叶及吐絮效果初期(0~5 d)较弱,主要在药后(5~15 d)发挥效果,1膜3行处理下棉花脱叶速度及吐絮速率虽较慢,但最终脱叶率与其他处理无显著差异,且不会造成棉花纤维长度的损伤和杂叶率的增加;而在1膜6行处理下喷施瑞脱龙脱叶吐絮效果较差。【结论】欣噻利在1膜6行配置下脱叶吐絮效果更佳且更迅速,但会造成原棉叶杂率的增加和上部棉铃纤维品质的降低;瑞脱龙在1膜3行配置下脱叶吐絮作用相对缓慢,但最终脱叶吐絮效果仍较高,且不会造成原棉叶杂率的增加和纤维品质的降低。

关键词: 棉花, 行距配置, 脱叶剂, 脱叶效果, 纤维品质

CLC Number:

S562

XU Shouzhen, MA Qi, NING Xinzhu, LI Jilian, SU Junji, HAN Huanyong, WANG Fangyong, LIN Hai. Effects of different row spacing and defoliant on cotton defoliation[J]. Xinjiang Agricultural Sciences, 2025, 62(3): 546-555.

徐守振, 马麒, 宁新柱, 李吉莲, 宿俊吉, 韩焕勇, 王方永, 林海. 不同行距和脱叶剂对棉花脱叶效果的影响[J]. 新疆农业科学, 2025, 62(3): 546-555.

Figures/Tables 6

References 32

[1]	熊宗伟, 王雪姣, 顾生浩, 等. 中国棉花纤维品质检验和评价的研究进展[J]. 棉花学报, 2012, 24(5): 451-460. DOI
	XIONG Zongwei, WANG Xuejiao, GU Shenghao, et al. Reviews of the cotton fiber quality inspection and evaluation in China[J]. Cotton Science, 2012, 24(5): 451-460.
[2]	张应波, 田松如, 张翰林, 等. 新疆棉区机采棉推广调研[J]. 中国棉花加工, 2015,(2): 18-20.
	ZHANG Yingbo, TIAN Songru, ZHANG Hanlin, et al. Investigation on popularization of mechanized cotton picking in Xinjiang cotton region[J]. China Cotton Processing, 2015,(2): 18-20.
[3]	刘鹏, 戴俊生. 目标价格改革对新疆棉农种植行为意愿及满意度影响分析[J]. 中国市场, 2016,(30): 231-233.
	LIU Peng, DAI Junsheng. Analysis on the influence of target price reform on cotton farmers' willingness and satisfaction with planting behavior in Xinjiang[J]. China Market, 2016,(30): 231-233.
[4]	张旺锋, 田景山, 董恒义, 等. 新疆北疆机采棉优质高效综合栽培技术规程[J]. 中国棉花, 2019, 46(6): 37-39. DOI
	ZHANG Wangfeng, TIAN Jingshan, DONG Hengyi, et al. Cultivation technical regulation of fine-quality and high-efficient machine-harvested cotton in northern Xinjiang[J]. China Cotton, 2019, 46(6): 37-39. DOI
[5]	毛树春, 李亚兵, 雷亚平, 等. 转型升级新常态提质增效新措施——用“中高端品质” 棉花引领产业发展, 用“良好棉花” 作为转型提质的新抓手[J]. 中国棉花, 2016, 43(6): 12-13. DOI
	MAO Shuchun, LI Yabing, LEI Yaping, et al. The transformation and upgrading of cotton industry in the new normal economy and the new measure of improving quality and increasing efficiency[J]. China Cotton, 2016, 43(6): 12-13. DOI
[6]	周婷婷, 肖庆刚, 杜睿, 等. 我国棉花脱叶催熟技术研究进展[J]. 棉花学报, 2020, 32(2): 170-184. DOI
	ZHOU Tingting, XIAO Qinggang, DU Rui, et al. Research advances on cotton harvest aids in China[J]. Cotton Science, 2020, 32(2): 170-184.
[7]	吴艳琴, 田景山, 张煦怡, 等. 清理加工工序对新疆机采棉品质的影响[J]. 纺织学报, 2021, 42(11): 24-28. DOI
	WU Yanqin, TIAN Jingshan, ZHANG Xuyi, et al. Effect of cotton cleaning on fiber quality of machine-harvested cotton in Xinjiang region[J]. Journal of Textile Research, 2021, 42(11): 24-28. DOI
[8]	田景山. 新疆机采棉纤维品质影响因素及提质途径研究[D]. 石河子: 石河子大学, 2018.
	TIAN Jingshan. Study on influencing factors and improving ways of machine-picked cotton fiber quality in Xinjiang[D]. Shihezi: Shihezi University, 2018.
[9]	Krifa M. Fiber length distribution in cotton processing: dominant features and interaction effects[J]. Textile Research Journal, 2006, 76(5): 426-435.
[10]	唐淑荣, 杨伟华, 熊宗伟, 等. 近十几年来我国棉花生产领域纤维品质状况分析[J]. 中国纤检, 2013,(S1): 40-44.
	TANG Shurong, YANG Weihua, XIONG Zongwei, et al. Analysis on the cotton fiber quality of the production field over the past decade[J]. China Fiber Inspection, 2013,(S1): 40-44.
[11]	Tian J S, Zhang X Y, Zhang W F, et al. Leaf adhesiveness affects damage to fiber strength during seed cotton cleaning of machine-harvested cotton[J]. Industrial Crops and Products, 2017, 107: 211-216.
[12]	雷斌, 张云生, 李忠华, 等. 棉花脱叶剂的田间效果筛选[J]. 新疆农业科学, 2011, 48(12): 2321-2324.
	LEI Bin, ZHANG Yunsheng, LI Zhonghua, et al. Screening test of different disleave agents for accelerating effect[J]. Xinjiang Agricultural Sciences, 2011, 48(12): 2321-2324.
[13]	姜伟丽, 马艳, 马小艳, 等. 不同脱叶催熟剂在棉花上的应用效果[J]. 中国棉花, 2013, 40(10): 11-14. DOI
	JIANG Weili, MA Yan, MA Xiaoyan, et al. The application effect of different defoliants and ripeners on cotton[J]. China Cotton, 2013, 40(10): 11-14. DOI
[14]	宋敏, 高文伟, 李贤超, 等. 脱叶剂瑞脱龙对新疆石河子主栽机采棉品种脱叶敏感性和吐絮率的影响分析[J]. 新疆农业大学学报, 2016, 39(1): 40-44.
	SONG Min, GAO Wenwei, LI Xianchao, et al. Influence of Ruituo dragon defoliant on defoliation sensitivity and boll opening rate of main machine-stripper in shihotze, Xinjiang[J]. Journal of Xinjiang Agricultural University, 2016, 39(1): 40-44.
[15]	高丽丽, 李淦, 徐新霞, 等. 4种棉花脱叶剂脱叶效果的比较研究[J]. 新疆农业大学学报, 2016, 39(1): 35-39.
	GAO Lili, LI Gan, XU Xinxia, et al. Comparison of defolianting effects of the defoliants applied for 4 varieties of cotton[J]. Journal of Xinjiang Agricultural University, 2016, 39(1): 35-39.
[16]	张丽娟, 夏绍南, 李永旗, 等. 新型脱叶剂欣噻利在赣北棉花上的应用效果初报[J]. 中国棉花, 2017, 44(6): 30-32. DOI
	ZHANG Lijuan, XIA Shaonan, LI Yongqi, et al. Preliminary application effect of a new type defoliant, xinsaili, to cotton in northern Jiangxi[J]. China Cotton, 2017, 44(6): 30-32. DOI
[17]	陈兵, 韩焕永, 张国蕾, 等. 4种脱叶催熟剂在棉花上的应用效果研究[J]. 中国棉花, 2017, 44(1): 26-28. DOI
	CHEN Bing, HAN Huanyong, ZHANG Guolei, et al. Effect of four defoliants and ripeners on cotton[J]. China Cotton, 2017, 44(1): 26-28. DOI
[18]	张文, 冯杨, 刘铨义, 等. 脱叶剂不同施用方法对棉花脱叶吐絮及产量和品质的影响[J]. 中国棉花, 2018, 45(5): 26-28. DOI
	ZHANG Wen, FENG Yang, LIU Quanyi, et al. Effects of different application methods of defoliants on defoliation, boll opening, yield and quality of cotton[J]. China Cotton, 2018, 45(5): 26-28. DOI
[19]	胡红岩, 任相亮, 马小艳, 等. 无人机喷施与人工喷施棉花脱叶剂效果对比[J]. 中国棉花, 2018, 45(7): 13-15, 19. DOI
	HU Hongyan, REN Xiangliang, MA Xiaoyan, et al. Comparison of defoliation effects between unmanned air vehicle spraying and artificial spraying in cotton field[J]. China Cotton, 2018, 45(7): 13-15, 19. DOI
[20]	田景山, 张煦怡, 王文敏, 等. 棉花脱叶催熟剂对纤维品质的影响及应用时间的确定[J]. 作物学报, 2020, 46(9): 1388-1397. DOI
	TIAN Jingshan, ZHANG Xuyi, WANG Wenmin, et al. A method of defoliant application based on fiber damage and boll growth period of machine-harvested cotton[J]. Acta Agronomica Sinica, 2020, 46(9): 1388-1397. DOI
[21]	徐守振, 左文庆, 陈民志, 等. 北疆植棉区滴灌量对化学打顶棉花植株农艺性状及产量的影响[J]. 棉花学报, 2017, 29(4): 345-355. DOI
	XU Shouzhen, ZUO Wenqing, CHEN Minzhi, et al. Effect of drip irrigation amount on the agronomic traits and yield of cotton grown with a chemical topping in northern Xinjiang, China[J]. Cotton Science, 2017, 29(4): 345-355.
[22]	周先林, 覃琴, 王龙, 等. 脱叶剂对两种机采模式下棉花脱叶效果及纤维品质的影响[J]. 中国农业科技导报, 2020, 22(11): 144-152. DOI
	ZHOU Xianlin, QIN Qin, WANG Long, et al. Influence of defoliant on defoliation effect and fiber quality of cotton under two kinds of mechanical harvesting modes[J]. Journal of Agricultural Science and Technology, 2020, 22(11): 144-152. DOI
[23]	田晓莉, 段留生, 李召虎, 等. 棉花化学催熟与脱叶的生理基础[J]. 植物生理学通讯, 2004, 40(6): 758-762.
	TIAN Xiaoli, DUAN Liusheng, LI Zhaohu, et al. Physiological bases of chemical accelerated boll maturation and defoliation in cotton[J]. Plant Physiology Communications, 2004, 40(6): 758-762.
[24]	孙巍, 杨宝玲, 高振江, 等. 浅析我国棉花机械采收现状及制约因素[J]. 中国农机化学报, 2013, 34(6): 9-13.
	SUN Wei, YANG Baoling, GAO Zhenjiang, et al. Analysis of mechanical harvest situation and restricting factors of cotton[J]. Journal of Chinese Agricultural Mechanization, 2013, 34(6): 9-13.
[25]	王聪, 罗宏海, 王明洋, 等. 播种期对不同配置方式杂交棉光合物质生产及产量的影响[J]. 新疆农业科学, 2015, 52(11): 1961-1968.
	WANG Cong, LUO Honghai, WANG Mingyang, et al. Effects of sowing date on photosynthetic production and yield of hybrid cotton material under different plant models[J]. Xinjiang Agricultural Sciences, 2015, 52(11): 1961-1968.
[26]	崔岳宁, 高振江, 杨宝玲. 不同行距种植模式下机采棉品质比较分析[J]. 中国农机化学报, 2016, 37(7): 235-240.
	CUI Yuening, GAO Zhenjiang, YANG Baoling. Quality analysis of different mechanical harvesting cotton planting patterns[J]. Journal of Chinese Agricultural Mechanization, 2016, 37(7): 235-240.
[27]	李建峰, 王聪, 梁福斌, 等. 新疆机采模式下棉花株行距配置对冠层结构指标及产量的影响[J]. 棉花学报, 2017, 29(2): 157-165. DOI
	LI Jianfeng, WANG Cong, LIANG Fubin, et al. Row spacing and planting density affect canopy structure and yield in machine-picked cotton in Xinjiang[J]. Cotton Science, 2017, 29(2): 157-165.
[28]	李新裕, 陈玉娟, 乔江, 等. 脱叶剂对棉花产量及纤维品质的影响[J]. 中国棉花, 2001, 28(2): 11-13.
	LI Xinyu, CHEN Yujuan, QIAO Jiang, et al. Effect of defoliant on cotton yield and fiber quality[J]. China Cotton, 2001, 28(2): 11-13.
[29]	廖宝鹏, 王崧嫚, 杜明伟, 等. 棉花不同部位主茎叶对脱叶剂噻苯隆的响应及机理[J]. 棉花学报, 2020, 32(5): 418-424. DOI
	LIAO Baopeng, WANG Songman, DU Mingwei, et al. Responses and underlying mechanisms of different mainstem leaves on cotton to defoliant thidiazuron[J]. Cotton Science, 2020, 32(5): 418-424.
[30]	何强, 王辉, 郭方剑, 等. 脱叶剂对不同品种棉花脱叶率和吐絮率的影响[J]. 绿洲农业科学与工程, 2021, 7(1): 50-55.
[31]	王彦, 梁艳, 李鲁华. 棉花采净率调查分析[J]. 新疆农垦科技, 2015, 38(11): 12-14.
	WANG Yan, LIANG Yan, LI Luhua. Investigation and analysis of cotton net picking rate[J]. Xinjiang Farm Research of Science and Technology, 2015, 38(11): 12-14.
[32]	李健伟, 吴鹏昊, 肖绍伟, 等. 机采种植模式对不同株型棉花脱叶及纤维品质的影响[J]. 干旱地区农业研究, 2019, 37(1): 82-88.
	LI Jianwei, WU Penghao, XIAO Shaowei, et al. Effects of cotton planting modes with machine picking on defoliation and fiber quality of different plant types[J]. Agricultural Research in the Arid Areas, 2019, 37(1): 82-88.

处理 Treatments	第5果枝 Fifth fruit branch(%)			第8果枝 Eighth fruit branch(%)
处理 Treatments	0~5 d	5~10 d	10~15 d	0~5 d	5~10 d	10~15 d
P₆T_R	1.18±0.03^b	8.18±0.72^b	4.67±0.56^b	0.48±0.15^ab	0.20±0.04^a	12.22±0.29^c
P₃T_R	-0.17±0.12^d	10.70±0.14^a	2.38±0.43^c	0.06±0.05^c	-0.46±0.07^c	12.52±0.22^c
P₆T_S	1.50±0.07^a	6.86±0.27^c	5.52±0.31^a	0.62±0.03^a	0.02±0.06^b	12.93±0.20^b
P₃T_S	0.21±0.06^c	10.49±0.64^a	2.48±0.04^c	0.35±0.19^b	0.06±0.04^b	13.51±0.03^a

处理 Treatments	第5果枝 Fifth fruit branch(%)			第8果枝 Eighth fruit branch(%)
处理 Treatments	0~5 d	5~10 d	10~15 d	0~5 d	5~10 d	10~15 d
P₆T_R	1.18±0.03^b	8.18±0.72^b	4.67±0.56^b	0.48±0.15^ab	0.20±0.04^a	12.22±0.29^c
P₃T_R	-0.17±0.12^d	10.70±0.14^a	2.38±0.43^c	0.06±0.05^c	-0.46±0.07^c	12.52±0.22^c
P₆T_S	1.50±0.07^a	6.86±0.27^c	5.52±0.31^a	0.62±0.03^a	0.02±0.06^b	12.93±0.20^b
P₃T_S	0.21±0.06^c	10.49±0.64^a	2.48±0.04^c	0.35±0.19^b	0.06±0.04^b	13.51±0.03^a

处理 Treatments	部位 Position	上半部平均长度 Upper half mean length(mm)	整齐度指数 Fiber uniformity	断裂比强度 Breaking tenacity (cN/tex)	马克隆值 Micronaire	断裂伸长率 Breaking elongation (%)	反射率 Reflectance degree (%)	纺纱均匀性指数 Spinning consiitency index
P₃T_R	上部	28.83±0.38^Ca	84.40±1.04^Aa	28.53±1.60^Aa	4.87±0.32^Aab	7.63±0.42^Ba	80.07±0.25^Ba	135.33±9.02^Aa
	中部	29.70±0.62^Ba	84.67±1.31^Aa	28.63±0.81^Aa	5.03±0.06^Ab	8.53±0.70^ABa	81.00±0.36^Aa	137.33±7.09^Aab
	下部	30.70±0.17^Aa	86.70±1.06^Aa	27.93±1.20^Aa	4.67±0.15^Aab	9.53±0.40^Aa	79.57±0.35^Ba	149.67±4.73^Aa
P₆T_R	上部	28.43±0.75^Ba	85.07±0.40^Aa	29.23±0.81^Aa	4.87±0.12^Aab	7.57±0.21^Ba	78.73±1.12^Aa	139.33±3.06^Aa
	中部	28.30±0.61^Bb	85.20±0.36^Aa	27.07±1.02^Ba	5.10±0.10^Aab	8.67±0.68^ABa	79.77±0.35^Aa	131.33±0.58^Aab
	下部	29.83±0.71^Aa	84.93±1.70^Aa	27.17±0.21^Ba	4.43±0.15^Bb	9.53±0.92^Aa	79.17±1.69^Aa	139.00±8.89^Aa
P₃T_S	上部	26.83±0.95^Bb	84.13±1.03^Aa	26.93±0.90^Aa	5.23±0.06^Aa	7.87±0.75^Ba	78.87±0.35^Aa	121.33±9.61^Ba
	中部	28.43±0.40^ABb	84.00±2.62^Aa	27.30±1.61^Aa	5.33±0.15^Aa	8.17±0.55^ABa	79.83±0.55^Aa	124.67±15.5^ABb
	下部	29.73±1.05^Aa	86.43±0.67^Aa	28.37±1.15^Aa	4.90±0.17^Ba	9.30±0.36^Aa	80.13±1.00^Aa	145.67±6.51^Aa
P₆T_S	上部	27.67±0.87^Aab	83.40±1.06^Ba	27.13±1.80^Aa	4.67±0.32^Ab	7.53±0.80^Ba	79.67±1.07^Aa	126.00±13.00^Ba
	中部	29.10±0.26^Aab	85.97±0.55^Aa	28.83±2.34^Aa	4.87±0.21^Ab	9.40±0.66^Aa	81.20±0.72^Aa	144.67±6.03^Aa
	下部	30.37±0.78^Ba	85.43±0.55^Aa	26.77±0.32^Aa	4.63±0.31^Aab	9.17±0.29^Aa	80.07±0.32^Aa	140.00±2.65^ABa
处理Treatments		0.002^**	0.900^ns	0.510^ns	0.001^**	0.844^ns	0.056	0.101^ns
部位Position		0.000^**	0.010^**	0.685^ns	0.000^**	0.000^**	0.008^**	0.002^**
处理×部位 Treatments×Position		0.322^ns	0.132^ns	0.119^ns	0.553^ns	0.339^ns	0.504^ns	0.055^ns

处理 Treatments	部位 Position	上半部平均长度 Upper half mean length(mm)	整齐度指数 Fiber uniformity	断裂比强度 Breaking tenacity (cN/tex)	马克隆值 Micronaire	断裂伸长率 Breaking elongation (%)	反射率 Reflectance degree (%)	纺纱均匀性指数 Spinning consiitency index
P₃T_R	上部	28.83±0.38^Ca	84.40±1.04^Aa	28.53±1.60^Aa	4.87±0.32^Aab	7.63±0.42^Ba	80.07±0.25^Ba	135.33±9.02^Aa
	中部	29.70±0.62^Ba	84.67±1.31^Aa	28.63±0.81^Aa	5.03±0.06^Ab	8.53±0.70^ABa	81.00±0.36^Aa	137.33±7.09^Aab
	下部	30.70±0.17^Aa	86.70±1.06^Aa	27.93±1.20^Aa	4.67±0.15^Aab	9.53±0.40^Aa	79.57±0.35^Ba	149.67±4.73^Aa
P₆T_R	上部	28.43±0.75^Ba	85.07±0.40^Aa	29.23±0.81^Aa	4.87±0.12^Aab	7.57±0.21^Ba	78.73±1.12^Aa	139.33±3.06^Aa
	中部	28.30±0.61^Bb	85.20±0.36^Aa	27.07±1.02^Ba	5.10±0.10^Aab	8.67±0.68^ABa	79.77±0.35^Aa	131.33±0.58^Aab
	下部	29.83±0.71^Aa	84.93±1.70^Aa	27.17±0.21^Ba	4.43±0.15^Bb	9.53±0.92^Aa	79.17±1.69^Aa	139.00±8.89^Aa
P₃T_S	上部	26.83±0.95^Bb	84.13±1.03^Aa	26.93±0.90^Aa	5.23±0.06^Aa	7.87±0.75^Ba	78.87±0.35^Aa	121.33±9.61^Ba
	中部	28.43±0.40^ABb	84.00±2.62^Aa	27.30±1.61^Aa	5.33±0.15^Aa	8.17±0.55^ABa	79.83±0.55^Aa	124.67±15.5^ABb
	下部	29.73±1.05^Aa	86.43±0.67^Aa	28.37±1.15^Aa	4.90±0.17^Ba	9.30±0.36^Aa	80.13±1.00^Aa	145.67±6.51^Aa
P₆T_S	上部	27.67±0.87^Aab	83.40±1.06^Ba	27.13±1.80^Aa	4.67±0.32^Ab	7.53±0.80^Ba	79.67±1.07^Aa	126.00±13.00^Ba
	中部	29.10±0.26^Aab	85.97±0.55^Aa	28.83±2.34^Aa	4.87±0.21^Ab	9.40±0.66^Aa	81.20±0.72^Aa	144.67±6.03^Aa
	下部	30.37±0.78^Ba	85.43±0.55^Aa	26.77±0.32^Aa	4.63±0.31^Aab	9.17±0.29^Aa	80.07±0.32^Aa	140.00±2.65^ABa
处理Treatments		0.002^**	0.900^ns	0.510^ns	0.001^**	0.844^ns	0.056	0.101^ns
部位Position		0.000^**	0.010^**	0.685^ns	0.000^**	0.000^**	0.008^**	0.002^**
处理×部位 Treatments×Position		0.322^ns	0.132^ns	0.119^ns	0.553^ns	0.339^ns	0.504^ns	0.055^ns

Effects of different row spacing and defoliant on cotton defoliation

不同行距和脱叶剂对棉花脱叶效果的影响

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 6

References 32

Related Articles 15

Recommended Articles

Metrics

[1]	ZHANG Lingjian, ZHANG Kai, ZHANG Hui, GUO Xiaomeng, CHEN Guoyue, WANG Yiding, JIA Qingyu. Study on the relationship between plant water content and morphological characteristics of top stem and leaf during the whole growth period of cotton [J]. Xinjiang Agricultural Sciences, 2025, 62(3): 531-538.
[2]	ZHANG Lian, CHEN Xiangyao, WANG Tangang, MA Xiaomei, CHENG Bin, WANG Gang, DUAN Zhenyu. Effects of high-strength mulch on soil temperature, humidity and cotton growth [J]. Xinjiang Agricultural Sciences, 2025, 62(3): 539-545.
[3]	ZHAO Yupeng, CHEN Bolang, WANG Zhiguo, FU Yanbo, BIAN Qingyong. Effects of different carbon source inputs on the characteristics of compacted clay and the growth of cotton seedlings [J]. Xinjiang Agricultural Sciences, 2025, 62(3): 556-571.
[4]	WANG Yongpan, MA Jun, LI Chenyu, YAO Mengyao, WANG Zixuan, HUANG Lingzhi, ZHU Haiyan, LIU Wanrong, LI Bo, YANG Yang, GAO Wenwei. Salt tolerance in germination period of cotton seeds based on convolutional neural network and synthetic dataset [J]. Xinjiang Agricultural Sciences, 2025, 62(2): 261-269.
[5]	HU Shasha, SHAO Liping, CHEN Lihua, SONG Weiping, ZHAO Hai, ZHANG Xinyu, SUN Jie. Effect of defoliant on boll development and fiber quality of machine-picked cotton [J]. Xinjiang Agricultural Sciences, 2025, 62(2): 270-277.
[6]	LU Mingkun, LI Junhong, Nilupaier Yusufujiang, PAN Xipeng, LIU Xiaocheng, ZHANG Zhenggui, PAN Zhanlei, ZHAI Menghua, ZHANG Yaopeng, ZHAO Wenqi, WANG Lihong, WANG Zhanbiao. Effect of silic on fertiliser application on the growth and development of cotton and its yield and quality [J]. Xinjiang Agricultural Sciences, 2025, 62(2): 286-293.
[7]	WANG Yiding, ZHANG Kai, ZHANG Lingjian, ZHANG Hui, GUO Xiaomeng, CHEN Guoyue. Effects of drip irrigation on the growth and development, yield formation, and water use efficiency of cotton in Xinjiang [J]. Xinjiang Agricultural Sciences, 2025, 62(2): 294-301.
[8]	WANG Xiaoyan, BAI Yungang, CHAI Zhongping, LU Zhenlin, LIU Hongbo, XIAO Jun, Amannisa . Effect of "dry sowing and wet emergence" on cotton growth and yield under the control of winter drip irrigation in off-cropping period [J]. Xinjiang Agricultural Sciences, 2025, 62(2): 302-313.
[9]	SUN Caiqin, WU Jia, HUANG Hai, GUO Jiaxin, MIN Wei, GUO Huijuan. Effects of different saline and alkaline stress on the proteome of cotton root system [J]. Xinjiang Agricultural Sciences, 2025, 62(1): 146-160.
[10]	LAI Chengxia, YANG Yanlong, WANG Penglong, ZHU Mengyu, YANG Dong, LI Chunping, GE Fengwei, Mayila Yusuyin, YANG Ni, MA Jun. Pathogen colony’s morphological characteristics and pathogenicity identification of defioating cotton Verticillium wilt in some areas in northern Xinjiang [J]. Xinjiang Agricultural Sciences, 2025, 62(1): 174-181.
[11]	WANG Wei, ZHANG Renfu, LIU Haiyang, LI Xiaowei, YAO Ju. Occurrence dynamics and spatial distribution pattern of Frankliniella intonsa in cotton fields in Xinjiang [J]. Xinjiang Agricultural Sciences, 2025, 62(1): 202-209.
[12]	WEN Fang, LIAO Na, WANG Na, JIN Jing, YAO Yiqiang. Adsorption and immobilization of Cd²⁺ by cotton straw biochar [J]. Xinjiang Agricultural Sciences, 2025, 62(1): 225-233.
[13]	ZHOU Xin, LIU Xuanfeng, JIANG Yuhan, ZHANG Haichun, YANG Yuxin, Yeerbdati Tiemuer, JIANG Yongxin, ZHANG Li. Current situation and development proposal of mechanized recovery and resource utilization of used mulch film in cotton fields in Xinjiang [J]. Xinjiang Agricultural Sciences, 2024, 61(S1): 131-141.
[14]	MIAO Hongping, WANG Xiaowei, TIAN Conghua, LI Zhi, ZHANG Yuxin, DAI Junsheng. Evolution characteristics and driving factors of cotton production and distribution in Tarim River basin [J]. Xinjiang Agricultural Sciences, 2024, 61(S1): 217-226.
[15]	WANG Junduo, CUI Yujiang, LIANG Yajun, GONG Zhaolong, ZHENG Junyun, LI Xueyuan. Xinjiang cotton production advantageous regional layout scheme [J]. Xinjiang Agricultural Sciences, 2024, 61(S1): 60-69.