不同播期冬小麦叶重和叶面积与产量关系的相关性研究

以17个小麦品种(系)为材料,研究了不同播期、不同叶位叶片面积和叶干重与产量的关系.结果表明,播期对小麦的生育期和产量影响均较大,在不同播期条件下每穗小穗数、每小穗粒数、单株粒数、单株产量间差异均达到极显著水平.小麦叶面积与产量因素间的关系十分密切,与穗粒数、穗粒重、每小穗粒数间差异均达到极显著水平,可作为高产育种的重要选择指标.

Study on Relation between the Leaf Weight, Leaf Area and Yield of Winter Wheat in Different Sowing Time

The relation between different sowing time, different leaf area of the different leaf position on the stem and leaf weight and yield of the wheat were studied based on 17 wheat varieties used as experiment materials. The result indicated that sowing time has greater effect on growing period and yield of the wheat. The difference between spikelet number per ear, grain number per spikelet, grain number of single plant, yield of single plant is extremely obvious under conditions of different sowing time. The relation between leaf, area of wheat and yield factor is very close. Difference between grain ear number, ear weight, grain number per spikelet is remarkable and can be used as an important index of high yield breeding.