化学封顶对棉花株型的调控及评价指标筛选

祝令晓,刘连涛,张永江,孙红春,张科,白志英,董合忠,李存东

The Regulation and Evaluation Indexes Screening of Chemical Topping on Cotton’s Plant Architecture

ZHU LingXiao,LIU LianTao,ZHANG YongJiang,SUN HongChun,ZHANG Ke,BAI ZhiYing,DONG HeZhong,LI CunDong

表1 2015—2016不同打顶处理对棉花产量及其构成因素的影响

Table 1 Effect of different topping treatments on cotton yield and yield components in 2015 and 2016

年份 Year 品种 Cultivar 处理 Treatment 单株铃数 Boll number per plant 单铃重 Boll weight (g) 籽棉产量 Seed cotton yield (kg·hm-2) 衣分 Lint percent (%) 皮棉产量 Lint cotton yield (kg·hm-2) 2015 JM863 MT 17.70±0.48a 6.23±0.33a 4266.81±165.79a 38.68±0.48c 1788.13±78.66a CT 17.98±1.31a 5.38±10.42ab 4157.54±328.77a 41.41±0.41b 1721.70±144.06a NT 14.75±0.95b 5.85±0.09b 3791.16±378.22b 43.06±0.27a 1632.47±217.67b ND601 MT 11.21±0.410a 6.41±0.58a 3480.00±196.82a 40.44±0.55c 1407.35±89.80a CT 11.13±1.46a 6.24±0.48a 3222.13±233.56ab 43.83±0.24a 1412.25±120.29a NT 10.62±1.46a 6.26±0.24a 3003.50±262.27b 42.29±0.33b 1270.02±94.68b 2016 JM863 MT 17.67±0.59a 6.27±0.06a 4397.76±95.52a 39.33±0.85b 1730.60±75.22a CT 17.33±0.31a 5.89±0.10b 4281.28±90.74a 41.37±0.49a 1770.79±31.87a NT 15.70±0.67b 5.81±0.11b 4041.05±156.19b 42.70±0.45a 1725.24±61.45a ND601 MT 14.10±0.54a 6.72±0.36a 3390.22±110.57a 39.94±1.21b 1355.33±84.33ab CT 13.05±0.35a 7.06±0.38a 3363.72±16.79a 42.89±0.79a 1442.877±28.10a NT 11.62±0.41b 7.15±0.12a 3135.93±56.40ab 41.26±0.58ab 1293.88±24.26b 方差分析 Source of variance Year (Y) NS NS NS NS NS Cultivar (C) ** ** ** NS ** Treatment (T) ** NS * ** * Y×C NS NS NS NS NS Y×T NS NS NS NS NS C×T NS NS NS ** NS Y×C×T NS NS NS NS NS