早熟陆地棉金垦1402脱叶效果的比较研究  

Comparative Research on Defolianting Effects of Early Maturing Upland Cotton Jinken 1402

作　　者：马晓梅[1] 李保成[1] 董承光[1] 周小凤[1] 王新[1] 田琴[1] 赵素琴 袁继勇 MA Xiao-mei;LI Bao-cheng;DONG Cheng-guang(Northwest Inland Region Key Laboratory of Cotton Biology and Genetic Breeding,Ministry of Agriculture and Rural Affairs/Cotton Research Institute,Xinjiang Academy of Agricultural and Reclamation Sciences,Shihezi,Xinjiang 832000)

机构地区：[1]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∕新疆农垦科学院棉花研究所,新疆石河子832000 [2]新疆维吾尔自治区种业发展中心,新疆乌鲁木齐830006 [3]新疆金丰源种业有限公司,新疆阿克苏843100

出　　处：《安徽农业科学》2024年第8期32-35,40,共5页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目“转录因子GhZFP8在棉花纤维发育中的功能及分子机制研究”(31960439);“耐逆丰产棉花新品种设计与培育”(2023ZD04040-5-2)。

摘　　要：[目的]针对早熟陆地棉品种金垦1402,研究棉花叶片形态学指标与药剂脱叶催熟效果的规律研究,为生产中提供脱叶催熟效果优良的早熟机采棉品种提供理论依据。[方法]分析金垦1402不同类型叶片脱叶规律及催熟效果,寻找影响该品种在脱叶剂作用下单株叶片脱落率的重要影响因素。[结果]金垦1402主茎叶、果枝叶、叶枝叶叶量均高于新陆早61号,但脱叶速度、脱叶率均高于新陆早61号,在药后21 d,脱叶效果优于新陆早61号;金垦1402药后单株吐絮铃数较新陆早61号多,且单株吐絮率高,优于新陆早61号;纤维品质指标达到“双31”以上,优于新陆早61号。[结论]金垦1402生育期119 d左右,在喷施脱叶剂后21 d,脱叶效果好,说明该品种属于对脱叶剂敏感型品种;该品种施药后,吐絮率高,纤维品质优。[Objective]To provide theoretical basis for selecting early-maturing machine-picked cotton varieties with excellent defoliation effect.[Method]We analyzed the defoliation rule and ripening effect of different types of leaves of Jinken 1402.The important influencing factors affecting the leaf shedding rate of individual plants of variety were found out under the action of defoliating agent.[Result]Jinken 1402 was higher than Xinluzao 61 in the quantity of main stem leaves,fruit branch leaves and leaf branch leaves,but the abscission rates were higher than Xinluzao 61,and the defoliation effect was better than Xinluzao 61 at 21 d after treatment.The number of boll per plant of Jinken 1402 was higher than Xinluzao 61,and the rate of boll opening number was higher than Xinluzao 61.The fiber quality index reached more than‘Shuang 31’,and better than Xinluzao 61.[Conclusion]The growth period of Jinken 1402 was about 119 d,and the defolianting effect was good at 21 d after spraying defoliator,indicating that this variety was sensitive to defoliation agents.After application,the boll opening rate of cotton were better and excellent fiber quality.

关 键 词：金垦1402 品种 脱叶率 脱叶速度 吐絮率 纤维品质 

分 类 号：S562[农业科学—作物学]