不同播期和播种量对冬小麦生长特征和产量的影响

王欣, 王才

Effects of Different Sowing Dates and Seeding Rates on the Growth Characteristics and Yield of Winter Wheat

Wang Xin, Wang Cai

表1 不同播期和播种量对冬小麦干物质转运的影响

Table 1 Effects of different sowing dates and seeding rates on dry matter transport of winter wheat

年份 Year 处理 Treatment 花前干物质Preanthesis dry matter 花后光合同化物Photoassimilate after flowering 转运量 Translocation amount (t/hm2) 转运率 Translocation rate (%) 贡献率 Contribution rate (%) 积累量 Accumulation (t/hm2) 贡献率 Contribution rate (%) 2017-2018 S1D1 3.21±0.38b 33.61±2.91bc 50.77±6.27bc 3.11±0.21c 49.23±3.27de S1D2 3.81±0.78a 35.71±0.53ab 55.54±1.28ab 3.05±0.10c 44.46±1.28ef S1D3 3.87±0.32a 37.95±1.67a 61.35±6.20a 2.44±0.25d 38.65±6.20f S2D1 2.94±0.15bc 31.01±1.77cd 45.02±3.76cde 3.60±0.28bc 54.98±3.76bcd S2D2 3.01±0.12bc 30.44±2.98cde 43.94±6.25cde 3.84±0.26ab 56.06±6.25bcd S2D3 2.62±0.23c 27.42±2.21ef 37.87±4.20ef 4.31±0.39a 62.13±4.20ab S3D1 2.03±0.22d 24.37±1.64f 32.27±2.88f 4.29±0.13a 67.73±2.88a S3D2 2.83±0.24bc 29.91±1.44de 42.72±2.96de 3.79±0.15ab 57.28±2.96bc S3D3 2.98±0.25bc 32.28±2.33bcd 47.78±5.00bcd 3.26±0.40bc 52.22±5.00cde 2018-2019 S1D1 3.17±0.65bc 27.93±0.16b 47.21±1.39b 3.54±0.14d 52.79±1.39b S1D2 3.35±0.31b 27.01±2.17bc 46.00±3.49b 3.93±0.25bc 54.00±3.49b S1D3 4.02±0.13a 32.20±0.68a 58.68±1.24a 2.83±0.60e 41.32±1.24c S2D1 2.55±0.64e 22.68±0.58d 38.65±1.59c 4.05±0.26b 61.35±1.59a S2D2 2.89±0.21cd 25.29±1.75c 39.27±1.34c 4.46±0.09a 60.73±1.34a S2D3 2.86±0.48d 25.21±0.30c 41.72±1.73c 4.00±0.24b 58.28±1.73a S3D1 3.30±0.19b 31.16±1.65a 47.55±2.55b 3.64±0.17cd 52.45±2.55b S3D2 3.41±0.17b 30.49±1.12a 47.50±1.03b 3.77±0.43bcd 52.50±1.03b S3D3 3.34±0.22b 30.68±1.91a 48.91±1.30b 3.50±0.15d 51.09±1.30b