不同种植密度和品种对夏玉米物质生产和产量构成的影响

乔江方, 张盼盼, 邵运辉, 刘京宝, 李川, 张美微, 黄璐

Effects of Different Planting Densities and Varieties on Dry Matter Production and Yield Components of Summer Maize

Qiao Jiangfang, Zhang Panpan, Shao Yunhui, Liu Jingbao, Li Chuan, Zhang Meiwei, Huang Lu

表3 不同处理对夏玉米籽粒产量及其构成因素的影响

Table 3 Effects of different treatments on the grain yield and its components of summer maize

因素 Factor 穗行数 Rows per ear 行粒数 Kernel number per row 千粒重 1000-grain weight (g) 产量 Yield (t/hm2) 收获指数 Harvest index 密度Density D1 15.7±0.3a 36.9±0.6a 388.48±7.28a 10.32±0.36e 0.51±0.02b D2 15.3±0.3ab 35.7±0.6a 373.58±7.28ab 10.77±0.36de 0.55±0.02a D3 15.5±0.3a 35.2±0.6a 368.08±7.28ab 11.55±0.36cd 0.53±0.05ab D4 15.3±0.3ab 35.5±0.6a 366.78±7.28ab 12.54±0.36bc 0.51±0.02b D5 15.3±0.3ab 32.9±0.6b 366.01±7.28ab 12.49±0.36bc 0.50±0.02b D6 14.6±0.3b 32.7±0.6b 356.19±7.28b 12.96±0.36b 0.52±0.04ab D7 15.5±0.3a 33.1±0.6b 352.56±7.28b 14.49±0.36a 0.51±0.01bc 品种Variety ZD309 14.6±0.2b 33.9±0.5b 369.64±5.5a 11.67±0.27c 0.52±0.05ab ZD326 14.5±0.2b 33.3±0.5b 364.37±5.5a 11.19±0.27c 0.53±0.02a ZD958 14.6±0.2b 35.8±0.5a 368.13±5.5a 12.50±0.27b 0.51±0.03ab ZY303 17.6±0.2a 35.2±0.5a 367.39±5.5a 13.29±0.27a 0.51±0.01b F检验F test 密度Density ns ** * ** ns 品种Variety ** ** ns ** ns 密度×品种Density×variety ns ns ns * ns