新疆农业科学 ›› 2023, Vol. 60 ›› Issue (2): 272-278.DOI: 10.6048/j.issn.1001-4330.2023.02.002

• 作物遗传育种·耕作栽培·种质资源·生理生化 • 上一篇    下一篇

不同浓度乙烯利复配剂对棉花的打顶效应

路茜1(), 李鹏兵2, 李明华1, 文明1, 董志强1, 芦阳3, 刘扬1,3(), 马富裕1,3()   

  1. 1.石河子大学农学院/新疆生产建设兵团绿洲生态重点实验室, 新疆石河子 832003
    2.新疆维吾尔自治区科技人才开发中心, 乌鲁木齐 830026
    3.现代农业生产信息化管理与应用技术国家地方联合工程研究中心(新疆兵团), 新疆石河子 832003
  • 收稿日期:2022-07-30 出版日期:2023-02-20 发布日期:2023-03-31
  • 通信作者: 刘扬(1989-),男,青海民和人,讲师,博士,研究方向为作物营养与精准栽培,(E-mail)ly.0318@163.com; 马富裕(1967-), 男,甘肃环县人,教授,博士,硕士生/博士生导师,研究方向为作物水肥一体化精准栽培,(E-mail)1469633844@qq.com
  • 作者简介:路茜(1995-),女,湖北钟祥人,硕士研究生,研究方向为作物栽培,(E-mail)lx931995341@qq.com
  • 基金资助:
    国家重点研发计划(2017YFD0201900);兵团财政科技计划(2020AB017);兵团财政科技计划(2020AB018);石河子大学青年创新人才培育计划项目-拔尖人才(2021-2023);石河子大学青年创新人才培育计划项目-拔尖人才(CXBJ202001)

Study on Roofing Effects of Different Concentration Ethephon Compound Reagents on Cotton

LU Xi1(), LI Pengbing2, LI Minghua1, WEN Ming1, DONG Zhiqiang1, LU Yang3, LIU Yang1,3(), MA Fuyu1,3()   

  1. 1. Key Laboratory of Oasis Eco-Agriculture of Xinjiang Production and Construction Corps / College of Agronomy, Shihezi University, Shihezi Xinjiang 832003, China
    2. Science and Technology Talent Development Center of Xinjiang Uygur Autonomous Region, Urumqi 830026, China
    3. National & Local Joint Engineering Research Center of Information Management and Application Technology for Modern Agricultural Production (XPCC), Shihezi Xinjiang 832003, China
  • Received:2022-07-30 Online:2023-02-20 Published:2023-03-31
  • Correspondence author: LIU Yang (1989-), female, native place: Minhe Qinghai, lecturer, doctoral student, Research field: Crop Nutrition and Precision Cultivation, (E-mail) ly.0318@163.com; MA Fuyu (1967-), male, native place: Huanxian Gansu, professor, doctoral student, Research field: Precision Cultivation of Crop Water and Fertilizer Integration, (E-mail) 1469633844@qq.com
  • Supported by:
    National Key R&D Program of China(2017YFD0201900);XPCC Finance Science and Technology Project(2020AB017);XPCC Finance Science and Technology Project(2020AB018);Youth innovative Talents Cultivation Program of Shihezi University - Top-notch Talents(2021-2023);Youth innovative Talents Cultivation Program of Shihezi University - Top-notch Talents(CXBJ202001)

摘要:

【目的】 研究不同浓度乙烯利复配试剂对新疆北疆滴灌棉花生长发育及产量形成的规律,分析最适浓度组合,为棉花化学打顶技术的应用及推广提供理论依据。【方法】 以鲁棉研24为材料,设置5个不同浓度乙烯利(C1: 0 mg/L、C2: 100 mg/L、C3: 200 mg/L、C4: 400 mg/L、C5: 800 mg/L)与烯效唑复配的组合试剂,研究不同复配试剂对北疆滴灌棉花生长发育及产量形成的影响。【结果】 相较于C1处理,其它处理最终新生主茎长度降低10.9%~34.67%。与CK相比,C1、C2、C3、C4处理下株高均显著提高10.55%~21.26%;各处理均显著增加棉花果枝1.9~2.7台、显著提高棉花叶龄2~3.2;C4、C5处理下节间长分别显著缩短7.21%、7.75%;C3处理下SPAD值在播种后101 d、125 d分别显著提高8.22%、8.46%;盛铃后期C3处理下叶片、茎秆、生殖器官干物质重量分别显著提高16.97%、14.57%、38.68%,在吐絮期,C3处理叶片、茎秆、生殖器官干物质重量显著提高22.56%、13.92%、36.6%;C3处理上部成铃率高达47.5%,提高36.67%,下单株铃数显著提高18.18%,C3处理下可增加籽棉880.5 kg/hm2,籽棉产量显著提高17.64%。【结论】 乙烯利与烯效唑复配可在一定程度上控制棉花株高,增加果枝台数、叶龄,缩短主茎节间长,提高SPAD值,增加各器官干物质重量,促进棉株上部成铃,最终提高产量。乙烯利浓度为200 mg/L时与烯效唑复配施用效果最佳,可用于棉花化学打顶。

关键词: 棉花; 化学打顶; 乙烯利; 烯效唑; 产量

Abstract:

【Objective】 To explore the rule of the growth and yield formation of cotton under drip irrigation in northern Xinjiang with different concentrations of ethephon compound reagent, to seek the optimal concentration combination, and to provide theoretical basis for the application and promotion of cotton chemical topping technology. 【Method】 Luyanyan 24 was used as the test variety, and 5 ethephon with different concentrations (C1: 0 mg/L, C2: 100 mg/L, C3: 200 mg/L, C4: 400 mg/L, C5:800 mg/L) combined with unidazole to study the effects of different compound reagents on the growth and yield formation of cotton under drip irrigation in northern Xinjiang. 【Result】 Compared with C1 treatment, the final length of new main stem was reduced by 10.9%-34.67% in other treatments.Compared with CK, plant height was significantly increased by 10.55%-21.26% under C1, C2, C3 and C4 treatments.Each treatment significantly increased fruit branches by 1.9-2.7 and leaf age by 2-3.2.Under C4 and C5 treatments, internode length was significantly reduced by 7.21% and 7.75%, respectively.Under C3 treatment, SPAD value was significantly increased by 8.22% and 8.46% on 101 d and 125 d after sowing, respectively.The dry matter weight of leaves, stem and reproductive organs under C3 treatment significantly increased by 16.97%, 14.57% and 38.68%, respectively, in the late bolling stage.The dry matter weight of leaves, stem and reproductive organs under C3 treatment significantly increased by 22.56%, 13.92% and 36.6% in the stage of bolling.Under C3 treatment, the boll-forming rate of the upper part was up to 47.5%, which increased by 36.67%, and the boll number per plant was significantly increased by 18.18%.Under C3 treatment, the seed cotton yield was significantly increased by 17.64% and 880.5 kg/hm2. 【Conclusion】 The combination of ethephon and enbulobuzol could control the plant height, increase the number of fruit branches and leaf age, shorten the internode length of main stem, increase the SPAD value, increase the dry matter weight of each organ, promote boll formation in the upper part of cotton plant to a certain extent, and finally increase the yield.All things considered, the ethephon concentration at 200 mg/L combined with enlobuzole effect is the best, which can be used for cotton chemical topping.

Key words: cotton; chemical topping; ethephon; uniconazole; yield

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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