种植密度和样式对强筋小麦产量及其构成的影响

Effect of Planting Density and Pattern on Yield and Yield Components of Different High-gluten Winter Wheat

以中强筋小麦和一般高产品系为试材,比较了不同种植密度和样式对产量以及产量构成因素的影响。结果表明,3个种植密度下的产量水平为中密度>高密度>低密度;4种种植样式的产量效应为等窄行>1窄1宽>等宽行>2窄1宽;品种间产量差异显著,与筋力强弱有关。穗数随种植密度增大或平均行距减小而递增,穗粒数和千粒重变化趋势相反。不同强筋小麦品种实现高产的适宜种植密度和样式不同。

The result of an experiment of different planting density and pattern by using 4 winter wheat cultivars of SX733, J5385, G8901 and J2003 showed that yield of 3.75 × 106/hm^2 plants ranked first followed by 5.25× 10^6/hm^2 and 2. 25 × 10^6/hm^2 for planting density treatment; the maximum yield for planting pattern was treatment of 10 cm row spacing, followed by row spacings of 10 cm -20 cm, 20 cm and 10 cm - 10 cm - 20 cm. Significant difference occurred among cuhivars, which was associated with gluten characters. Ear numbers per hectare increased with increased planting density and decreased average row spacing, while changes in grain number per ear and grain weight showed reverse. Different high-gluten cultivars would be grown at different planting density and pattern to obtain maximum yield.