种植方式和密度对高粱群体结构和产量的影响

肖继兵,刘志,孔凡信,辛宗绪,吴宏生

Effects of Planting Pattern and Density on Population Structure and Yield of Sorghum

XIAO JiBing,LIU Zhi,KONG FanXin,XIN ZongXu,WU HongSheng

表1 高粱不同群体产量及构成因素

Table 1 Yield and yield components in different populations of sorghum

年份 Year 种植方式 Planting pattern 种植密度 Planting density 穗粒数 Kernels per panicle 千粒重 1000-kernel weight (g) 籽粒产量 Yield (kg·hm-2) 2016 P1 D1 3606.67±323.60a 29.40±1.23a 7542.75±426.00b D2 2802.20±320.72b 27.36±1.24b 8016.40±688.65b D3 2751.23±457.81b 25.49±1.11c 9625.95±661.55a P2 D1 3053.80±477.59a 30.66±1.17a 6996.75±841.78c D2 2954.26±321.70a 27.73±2.09b 8558.20±424.98b D3 2798.21±143.08a 26.37±0.95b 10226.25±558.26a 2017 P1 D1 3877.89±314.24a 31.23±1.65a 7652.06±708.37b D2 3095.85±205.82b 30.77±2.04a 9530.32±402.64a D3 2416.57±301.10c 30.33±1.69a 9572.47±290.35a D4 2193.38±270.08c 27.18±0.62b 9313.73±180.34a P2 D1 3926.45±151.60a 30.85±1.23a 8156.76±345.64c D2 3146.02±310.18b 29.43±1.13a 9868.54±763.05ab D3 2604.21±186.15c 29.95±1.28a 10308.02±1034.85a D4 2128.65±206.24d 26.27±1.54b 9076.39±412.16b