打顶时间对江汉平原油后直播棉成铃分布及产量和品质的影响  

Effects of Topping Time on the Spatial Distribution of Boll and Yield and Quality of the Directly Sown Cotton after Rape Harvest in Jianghan Plain

作　　者：熊路 李雄峰 雷志祥 陈传安 王齐娥 马骕驰 刘道红 汪友元 胡爱兵 Xiong Lu;Li Xiongfeng;Lei Zhixiang;Chen Chuan'an;Wang Qi'e;Ma Suchi;Liu Daohong;Wang Youyuan;Hu Aibing(Agricultural Technology Promotion Center of Tianmen.,Tiamnen,Hubei 431700,China;Agricultural Technology Service Center of Mawan Town,Tianmen.,Tianmen,Hubei 431728,China;Tianmen Academy of Agricultural Sciences.,Tianmen,Hubei 431700,China;Jingzhou Academy of Agricultural Sciences.,Jingrhou,Hubei 434000,China)

机构地区：[1]天门市农业技术推广中心,湖北天门431700 [2]天门市马湾镇农技服务中心,湖北天门431728 [3]天门市农业科学院,湖北天门431700 [4]荆州农业科学院,湖北荆州434000

出　　处：《棉花科学》2022年第3期16-20,30,共6页Cotton Sciences

基　　金：国家现代农业棉花产业技术体系资金项目(CARS-15-42);湖北省棉花提质增效技术模式集成示范项目(鄂财农发[2019]19号);湖北省农业创新中心项目(2016-620-000-001-050)。

摘　　要：为探索江汉平原地区油后直播棉适宜的打顶时间,以短季棉CN01为试验材料,在湖北天门开展了不同打顶时间对CN01成铃分布、产量、品质影响的试验研究。结果表明,各打顶处理均能降低短季棉CN01的株高;单株成铃数、籽棉产量和皮棉产量随着打顶时间的后移均呈先升高后降低趋势变化,以8月10日打顶处理产量最高;衣分、整齐度指数降低,上半部平均长度是随着打顶时间的后移呈不规则的先升后降变化。短季棉CN01在江汉平原地区(湖北天门市)油后直播适宜的打顶时间为8月10日。In order to explore the appropriate topping time of the directly sown cotton after rape harvest in Jianghan Plain, the short season cotton CN01 as the experimental material to study the effects of different topping time on the spatial distribution of boll, yield and quality of the cotton CN01. The results indicated that all topping treatments could reduce the plant height of the short season cotton CN01. The number of bolls per plant, seed cotton yield and lint yield all decreased firstly then increased, and the yield of treatment of topping time at august 10 th was the highest. Lint percent and the index of uniformity decreased, and the average length of the upper half showed an irregular increased firstly then decreased with the topping time. The suitable topping time of the directly sown cotton CN01 after rape harvest was august 10 th in the Jianghan Plain(Tianmen, Hubei).

关 键 词：打顶时间 江汉平原 油后直播棉 成铃分布 产量 品质 

分 类 号：S562[农业科学—作物学]