北疆棉区棉花单铃损伤对脱叶催熟剂及铃期的响应

doi:10.6048/j.issn.1001-4330.2018.07.002

新疆农业科学 ›› 2018, Vol. 55 ›› Issue (7): 1186-1193.DOI: 10.6048/j.issn.1001-4330.2018.07.002

北疆棉区棉花单铃损伤对脱叶催熟剂及铃期的响应

张煦怡, 田景山, 杨延龙, 随龙龙, 张鹏鹏, 张旺锋

石河子大学农学院/新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子 832003

收稿日期:2018-05-30 发布日期:2018-11-27
通信作者: 张旺锋(1965-),男,甘肃静宁人,教授,博士生导师,研究方向为作物产量与品质形成的生理生态,(E-mail)zhwf_agr@shzu.edu.cn
作者简介:张煦怡(1993-),女,安徽利辛人,硕士研究生,研究方向为作物产量与品质生理生态,(E-mail)410294403@qq.com
基金资助:
国家科技支撑计划项目“机采棉高产高效栽培技术及配套技术集成与示范”(2014BAD09B03);国家自然科学基金项目“新疆棉花叶限制下棉铃蔗糖代谢机制及与比强度形成关系的研究”(31560366)

Response of Cotton Single Boll Damage to Defoliation and Boll Stage in Northern Xinjiang Cotton Region

ZHANG Xu-yi, TIAN Jing-shan, YANG Yan-long, SUI Long-long, ZHANG Peng-peng, ZHANG Wang-feng

Key Laboratory of Oasis Eco-agriculture of Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi Xinjiang 832003, China

Received:2018-05-30 Published:2018-11-27
Correspondence author: ZHANG Wang-feng (1965-), male, native place: Jingning, Gansu. doctoral student, professor. Reserch area: Physiology and Ecology of crop yield and quality formation. (E-mail) zhwf_agr@shzu,edu.cn
Supported by:
The National Science an Technology Support Program "Integration and Demonstration of High-yield and High-efficiency Cultivation Techniques and Supporting Techniques for Machine Cotton Harvesting" (No.2014BAD09B03) and NFSC "Study on Sucrose Metabolism Mechanism of Cotton Boll and Its Relationship with Specific Strength under Cotton Leaf Restriction in Xinjiang" (No.31560366)

摘要/Abstract

摘要： 【目的】研究棉花适宜施用脱叶催熟的棉铃铃期和施用时间,提升棉花脱叶催熟效果,降低对棉花产量和纤维品质的影响。【方法】设置不同的棉花脱叶催熟剂施用时间,分析脱叶催熟剂对棉铃发育的影响及对单铃纤维和棉籽的损伤程度。【结果】施用脱叶催熟剂缩短棉铃铃期,提前施用时间则棉铃铃期缩短越大,单铃纤维重和单铃棉籽重受脱叶催熟剂影响显著,不同施用时间以铃龄44 d时的降低量最小,降低了0.15 g左右。【结论】根据棉铃铃期与单铃因子损伤量的关系,确定脱叶催熟剂的施用时间。若控制单铃产量损伤量<0.1 g,“脱叶催熟剂施用时间/铃期”大于0.79,棉铃铃期55 d的棉花品种可在铃龄43 d施用脱叶催熟剂。

关键词: 机采棉; 脱叶催熟剂; 单铃纤维重; 单铃棉籽重; 损伤量; 铃期

Abstract: 【Objective】 The technology of defoliation and ripening is an important prerequisite to realize cotton harvesting and reasonable application time can achieve good defoliation and ripening effect and reduce the influence on cotton yield and fiber quality.【Method】In this experiment, the effects of defoliation on cotton boll development and damage degree to single boll fiber and cottonseed were analyzed by setting different time of defoliation and ripening agent, and cotton boll stage suitable for defoliation and ripening was discussed.【Result】The boll period of cotton was shortened by applying defoliation and ripening agent. The shorter the boll period was, the more shortened boll period was. The weight of fiber per boll and cotton seed weight per boll was significantly affected by the defoliation agent, and the decrease of boll period was the least when the boll age was 44 days, which was reduced by about 0.15 g.【Conclusion】According to the relationship between boll stage and the damage amount of single boll factor, the application time of defoliation can be determined. If the damage amount of single boll yield was less than 0.1 g, the application time of defoliation agent / boll period should be greater than 0.79, and cotton varieties with 55 days boll stage could apply defoliation agent at 43 days of boll age.

Key words: machine-harvesting cotton; fiber weight per boll; cottonseed weight per boll; fiber damage; boll age

中图分类号:

S562

张煦怡, 田景山, 杨延龙, 随龙龙, 张鹏鹏, 张旺锋. 北疆棉区棉花单铃损伤对脱叶催熟剂及铃期的响应[J]. 新疆农业科学, 2018, 55(7): 1186-1193.

ZHANG Xu-yi, TIAN Jing-shan, YANG Yan-long, SUI Long-long, ZHANG Peng-peng, ZHANG Wang-feng. Response of Cotton Single Boll Damage to Defoliation and Boll Stage in Northern Xinjiang Cotton Region[J]. Xinjiang Agricultural Sciences, 2018, 55(7): 1186-1193.

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北疆棉区棉花单铃损伤对脱叶催熟剂及铃期的响应

Response of Cotton Single Boll Damage to Defoliation and Boll Stage in Northern Xinjiang Cotton Region

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