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7 拔节期阶段性干旱对小麦主茎及不同蘖位分蘖单粒重的影响

Table 7 Effects of staged drought at jointing on single-kernel weight of main stem and tillers at different positions of wheat (mg/kernel)

年份 Year 品种 Cultivar 处理 Treatment O Ⅰ Ⅱ Ⅲ Ⅰp Ⅳ Ⅱp Ⅰ1 2017-2018 山农29 Shannong29 CK 51.94a 50.34a 49.36a 48.17a 46.56a 45.46a 44.70a 44.00a T1 50.83ab 49.50ab 48.32a 47.89a 45.34a 45.39a 43.85a 43.09ab T2 49.85ab 49.12ab 47.89ab 45.93ab 44.57ab 44.05ab 43.17ab 42.54ab T3 49.28b 47.91bc 46.06bc 44.16bc 43.01bc 42.35bc 42.11bc 41.72bc T4 48.85b 46.05c 44.78c 43.21c 41.80c 40.92c 40.70c 40.33c 衡0628 Heng0628 CK 45.27ab 43.70a 42.37a 42.33a 41.57a 40.67a 39.90a 39.30a T1 46.43a 45.88a 43.57a 43.52a 42.05a 41.88a 41.51a 39.98a T2 43.07b 41.38b 39.82b 39.30b 39.52b 38.59b 37.85b 37.06b T3 43.00b 41.23bc 39.05bc 38.75bc 38.46bc 37.85bc 37.72b 36.11b T4 41.95b 39.38c 37.82c 37.32c 37.15c 36.42c 35.67b 35.10b 2018-2019 山农29 Shannong29 CK 50.77a 50.01a 48.28a 46.39a 45.60a 44.39a 43.20a 41.25a T1 50.37a 48.26a 47.06a 45.44a 44.14a 43.07a 42.91ab 40.29ab T2 49.16ab 47.83ab 46.32ab 44.48ab 43.56ab 42.65ab 41.30ab 39.33ab T3 48.14bc 47.59bc 45.11bc 43.13bc 42.44bc 41.49bc 40.82b 39.04b T4 46.91c 45.65c 43.62c 41.34c 40.80c 39.70c 38.50c 37.42c 衡0628 Heng0628 CK 46.89ab 46.33a 45.11a 43.12a 41.21a 39.89a 39.72a 38.11a T1 48.17a 47.81a 46.88a 44.50a 42.94a 40.74a 40.22a 38.23a T2 45.45bc 44.05b 42.20b 40.31b 39.12b 37.71b 37.56b 36.05b T3 44.79c 43.42bc 41.53bc 39.67bc 37.79bc 37.04bc 36.97bc 35.30bc T4 43.39c 42.00c 40.23c 38.09c 36.78c 35.47c 35.25c 34.61c