冬小麦不同茎蘖生产力对立体匀播技术的响应

陶志强,王艳杰,王德梅,杨玉双,徐哲莉,赵广才,常旭虹

Response of Productive Capacity among Tillers in Winter Wheat to Tridimensional Uniform Sowing

Zhiqiang Tao,Yanjie Wang,Demei Wang,Yushuang Yang,Zheli Xu,Guangcai Zhao,Xuhong Chang

表2 不同播种方式条件下主茎、1蘖、2蘖的子粒灌浆特性

Table 2 Grain filling characteristics of tillers at different positions in both sowing patterns

项目Item 立体匀播 Tridimensional uniform sowing 常规条播 Conventional drilling 主茎Z 1蘖1N 2蘖2N 主茎Z 1蘖1N 2蘖2N 最大千粒重The final 1000-kernel weight (g) 47.83ab 47.08abc 46.12bcd 48.67a 47.17ab 45.36cd 达到最大灌浆速率的时间Time to reach the maximum grain filling rate (d) 14.41a 14.40a 14.30a 14.35a 14.28a 14.38a 最大灌浆速率The maximum grain filling rate [mg/(粒·d)] 2.55ab 2.51abc 2.54abc 2.60a 2.52abc 2.49abc 平均灌浆速率Mean grain filling rate [mg/(粒·d)] 1.70ab 1.67abc 1.69abc 1.73a 1.68abc 1.66abc 灌浆活跃期The active grain filling period (d) 28.14a 28.14a 27.27a 28.14a 28.14a 27.30a 粒重缓慢增长期Slow increase period of kernel weight (d) 4.99b 4.97b 5.16b 4.92b 4.85b 5.24ab 粒重指数增长期Exponential increase period of kernel weight (d) 17.34a 17.32ab 17.13abc 17.27abc 17.21abc 17.22abc 粒重增长滞缓期Stopping growth period of kernel weight (d) 35.96a 35.95a 35.18ab 35.90a 35.83ab 35.27ab