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1 不同因素对夏玉米花前花后干物质生产的影响

Table 1 Effects of different factors on the dry matter production of summer maize before and after the anthesis stage

因素 Factor 干物质量Dry matter (t/hm2) 花后干物质量/成熟期干物质量 Dry matter after anthesis/dry matter in maturity (%) 成熟期Maturity 花前Before anthesis 花后After anthesis 密度Densitiy D1 20.46±1.58d 7.10±1.00d 13.36±1.69cd 65.15±5.29a D2 19.73±2.04d 7.81±1.03cd 11.92±1.86d 60.23±5.12ab D3 22.56±3.79c 8.41±1.17c 14.15±3.63bcd 61.65±8.71ab D4 25.46±2.99b 9.71±0.73b 15.75±3.11b 61.33±5.88ab D5 25.23±3.21b 10.28±1.50ab 14.95±3.57bc 58.75±7.40b D6 25.52±3.55b 10.29±0.99ab 15.23±4.11bc 58.61±9.17b D7 29.16±5.78a 10.92±1.61a 18.24±6.32a 60.92±10.15ab 品种Variety ZD309 22.66±3.04b 9.31±1.83ab 13.35±2.77b 58.64±7.99bc ZD326 21.79±3.58b 9.11±1.59ab 12.68±2.92b 57.72±6.83c ZD958 25.50±5.93a 8.65±1.83b 16.86±5.29a 65.23±7.81a ZD303 26.11±3.92a 9.81±1.71a 16.31±3.26a 62.20±5.67b F检验F test 密度Density ** ** ** ns 品种Variety ** * ** ** 密度×品种Density×variety ** ns ** **