不同时期重截对大十果桑生长结果的影响

采果结束后对大十果桑结果母枝重截是其夏季修剪的主要内容。结果表明：采果结束时立即对结果母枝留3～4节重截提高次年产量和品质、减小树体、增强树势的综合效果最好。重截过迟,会严重削弱树势,造成次年大幅减产。叶果兼用时,为了克服因集中重截而造成断叶现象,可以在采果结束后30 d以内分期分批对结果母枝重截,对次年产量和品质的影响较小。

Effect of heavy Pruning in Different Periods on the Growing and Bearing Fruit of Da10 Mulberry

Heavy Pruning da10 mulberry of Bearing Mother Branches in the summer is main content after the fruit picking.Tests showed that the best comprehensive effect was taking immediate heavy pruning on bearing mother branches at the end of picking fruits, and only retained 3 to 4 nodes,which could increase the annual output and quality, reduce tree form and enhance growth potential. If bearing mother branches were pruned heavily by instalments in 30 days when leaves and fruits were be used, the effect was smaller ...