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

图2 不同脱叶剂喷施时间处理下各指标相关性分析热图 LSFB-BW：后期开花棉铃―单铃重，LSFB-LP：后期开花棉铃―衣分，LSFB-BOR：后期开花棉铃―吐絮率，LSFB-ALUH：后期开花棉铃―上半部平均长度，LSFB-UI：后期开花棉铃―整齐度指数，LSFB-FS：后期开花棉铃―断裂比强度，LSFB-MV：后期开花棉铃―马克隆值，LSFB-ER：后期开花棉铃―伸长率，BNPP：单株铃数，BW：单铃重，SCY：籽棉产量，ALUH：上半部平均长度，UI：整齐度指数，FS：断裂比强度，MV：马克隆值，ER：伸长率。“*”和“**”分别表示相关性达显著（P < 0.05）或者极显著水平（P < 0.01）。

Fig.2 Heat map of correlation analysis of indicators under different defoliant spraying time treatments LSFB-BW: late-season flowering bolls-boll weight, LSFB-LP: late-season flowering bolls-lint percentage, LSFB-BOR: late-season flowering bolls-boll opening rate, LSFB-ALUH: late-season flowering bolls-average length of upper half, LSFB-UI: late-season flowering bolls-uniformity index, LSFB-FS: late-season flowering bolls-fiber strength, LSFB-MV: late-season flowering bolls-Micronaire value, LSFB-ER: late-season flowering bolls-elongation rate, BNPP: boll number per plant, BW: boll weight, SCY: seed cotton yield, ALUH: average length of upper half, UI: uniformity index, FS: fiber strength, MV: micronaire value, ER: elongation rate. “*”and“**”indicate that the correlation reaches the significant(P < 0.05) or extremely significant level (P < 0.01), respectively.