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为了探讨核桃-小麦间作对小麦生长发育和产量的影响,在核桃-小麦间作(简称“核-麦间作”)条件下研究了核桃树遮荫对不同小麦品种生长发育、光合特性及产量构成因素的影响。结果表明,核-麦间作复合群体中,冠下区小麦的生物量、穗粒数、穗粒重、千粒重、收获指数、产量和旗叶、倒2叶、倒3叶的净光合速率均明显小于远冠区,且不同品种间具有相同的规律。烟农22在冠下区和远冠区的净光合速率、产量及产量的主要构成因素均明显高于DH155、绵麦48、绵麦37和新冬20。在果粮间作复合栽培模式下,对耐荫、高产小麦品种的筛选,其光合生产能力可作为重要的考核指标,同时还要注重小花和小穗结实性状的考查。
In order to investigate the effect of walnut-wheat intercropping on the growth and yield of wheat, the effects of walnut tree shading on the growth and development, photosynthetic characteristics and yield of wheat cultivars were studied under the condition of “walnut-wheat intercropping” The impact of compositional factors. The results showed that the net photosynthetic rate of wheat in the core-wheat intercropping population was significantly lower than that in the lower canopy, and the biomass, spike number, spike weight, 1000-grain weight, harvest index, yield and flag leaf, Less than the far area, and different varieties have the same rules. The main components of the net photosynthetic rate, yield and yield of tobacco growers 22 in the lower canopy and the distal canopy were significantly higher than those of DH155, Mianmai48, Mianmai37 and Xintiandi20. Under the intercropping mode, the photosynthetic capacity of resistant and high-yield wheat cultivars can be used as an important index for evaluation. At the same time, attention should be paid to the examination of the fruiting characters of florets and spikelets.