不同修剪方式对凤梨释迦番荔枝新稍生长的影响

Effects of Different Pruning Methods on the Growth of New Shoots of Annona atemoya

以元谋干热河谷地区凤梨释迦番荔枝为研究对象,比较了不同促花修剪方案对萌发新稍数量、新稍长、新稍茎径的影响,并对不同方向新稍生长状况进行了比较。结果表明:采用树冠内堂枝条疏除,树冠外围枝条保留并摘心的修剪方式有利于萌发更多的健壮新稍,树体中部和东面的新稍长势较好,实际生产中建议采取增加树体南面、西面保留枝条数和避免株与株之间枝叶郁蔽的方式来改善新稍光合环境,促使新稍生长健壮。

Taking Annona atemoya in Yuanmou Dry-hot Valley Botanical Garden as the research object,the effects of different flowerpromoting pruning schemes on the number,length and stem diameter of new shoots were compared,and the growth conditions of new shoots in different directions were compared as well.The results showed that the pruning method of removing the inner branches of the canopy,retaining the outer branches of the canopy and picking the heart was beneficial to the germination of more robust new shoots,and the new shoots in the middle and east of the tree grew well.In actual production,we suggest increasing the number of branches in the south and west of the tree and avoiding the shading of branches and leaves between plants to improve the photosynthetic environment of the new shoots and promote the growth and robustness of the new shoots.