拔节期阶段性干旱对小麦茎蘖成穗与结实的影响

李萍,尚云秋,林祥,刘帅康,王森,胡鑫慧,王东

Effects of Drought Stress During Jointing Stage on Spike Formation and Seed Setting of Main Stem and Tillers of Winter Wheat

LI Ping,SHANG YunQiu,LIN Xiang,LIU ShuaiKang,WANG Sen,HU XinHui,WANG Dong

表9 拔节期阶段性干旱对单位面积籽粒产量及其构成因素的影响

Table 9 Effects of staged drought at jointing on yield and its component factors of wheat

处理 Treatments 2017-2018 2018-2019 穗数 Spike per pot 穗粒数 Kernel per spike 千粒重 1000-kernel weight (g) 产量 Yield (g/pot) 穗数 Spike per pot 穗粒数 Kernel per spike 千粒重 1000-kernel weight (g) 产量 Yield (g/pot) 山农29 Shannong29 CK 47.34a 34.17a 45.97a 65.50a 43.43ab 40.91a 46.69a 68.48a T1 48.60a 33.52ab 44.98a 64.67a 44.86a 40.05ab 46.22a 68.87a T2 46.60ab 32.22b 44.05ab 60.79b 42.89ab 38.76b 45.03ab 64.86b T3 44.80b 31.87b 42.97b 56.78c 41.29b 38.17b 43.70b 59.67c T4 42.20c 29.84c 42.05b 48.52d 38.43c 36.26c 42.85b 52.60d 衡0628 Heng0628 CK 47.60a 36.52a 43.77a 61.61a 42.29a 42.09a 46.51a 63.22a T1 48.20a 35.34ab 44.72a 62.46a 43.14a 41.16ab 47.01a 64.63a T2 45.80ab 34.42b 41.57b 55.19b 40.86ab 39.72bc 43.76b 57.46b T3 44.17b 34.82b 40.27b 51.14c 39.57b 38.92c 42.97bc 53.41c T4 40.80c 31.75c 39.35b 42.17d 37.22c 37.02c 41.24c 46.75d