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3 不同播期和播种量对冬小麦产量及其构成因素的影响

Table 3 The effects of different sowing dates and seeding rates on winter wheat yield and its components

年份 Year 处理 Treatment 穗数 Ear number (×104/hm2) 穗粒数 Grains per spike 千粒重 1000-grain weight (g) 产量 Yield (kg/hm2) 2017-2018 S1D1 461.16±4.08f 36.46±0.37ab 43.68±0.11ab 7345.65±104.83de S1D2 520.30±6.14d 35.18±0.46bc 43.53±0.23bc 7966.88±67.22ab S1D3 530.15±4.83bcd 33.09±0.49de 41.81±0.26f 7335.20±175.83de S2D1 465.59±6.04f 37.37±1.43a 43.69±0.54ab 7600.92±326.65cd S2D2 525.05±3.11cd 35.39±1.28bc 42.87±0.29de 7963.72±204.11ab S2D3 556.86±9.08a 34.29±0.64cd 41.91±0.21ef 8066.73±194.61a S3D1 480.52±7.27e 34.72±0.72c 44.18±0.48a 7368.15±134.54cde S3D2 542.10±9.61b 32.95±0.60de 43.05±0.49cd 7689.46±150.82bc S3D3 533.79±11.54bc 32.44±0.48e 41.89±0.30f 7253.29±220.74e 2018-2019 S1D1 477.35±3.93c 37.23±0.27a 43.91±0.81ab 7523.45±266.55d S1D2 530.95±3.04b 36.67±0.73abc 43.42±0.50abc 8456.05±302.60ab S1D3 538.51±2.92ab 35.21±0.43de 42.04±0.73c 8046.46±140.32cd S2D1 475.06±7.20c 36.51±0.18abc 44.25±1.11ab 7675.46±308.97d S2D2 549.08±6.44a 35.86±0.74cd 43.43±1.14abc 8551.96±353.58a S2D3 545.24±6.65ab 34.74±0.86e 42.15±0.69c 8364.67±149.08cd S3D1 490.05±7.19c 36.85±0.17ab 44.74±0.95a 7932.65±272.61bcd S3D2 535.17±8.12ab 36.07±0.33bcd 43.28±0.61bc 8355.70±234.30abc S3D3 536.84±21.11ab 35.24±0.39de 42.12±0.43c 8116.12±197.24cd