夏播短季栽培模式下棉花产量及纤维品质对脱叶催熟剂喷施时间的响应

谢章书, 荣志凌, 覃业玲, 李侃, 周仲华, 屠小菊, 汪启明, 刘爱玉

Response of Cotton Yield and Fiber Quality to the Timing of Defoliant Spraying under Summer-Sown Short-Season Cultivation Pattern

Xie Zhangshu, Rong Zhiling, Qin Yeling, Li Kan, Zhou Zhonghua, Tu Xiaoju, Wang Qiming, Liu Aiyu

表2 脱叶剂喷施时间对产量及产量性状的影响

Table 2 Effects of defoliant spraying time on yield and its traits

喷施日期（月-日） Application date (month-day) 单株铃数 Boll number per plant 单铃重 Boll weight (g) 籽棉产量 Seed cotton yield (kg/hm2) 10-03 14.00±0.45a 4.96±0.04b 5828.87±118.36b 10-06 14.67±1.12a 5.11±0.16ab 6126.97±119.03ab 10-09 14.83±0.79a 4.98±0.12b 5976.92±117.44b 10-12 14.17±1.03a 5.30±0.04a 6573.28±225.84a 10-15 14.34±0.91a 5.03±0.22ab 6262.07±125.12ab