不同程度回缩修剪对澳芒新梢生长和产量的影响  

Effects of Different Pruning Degrees on the Shoot Growth and Yield of R2E2 Mango

作　　者：段元杰 刘海刚[1] 孟富宣[1] 阳世莹 孙漫莹 胡祥 DUAN Yuan-jie;LIU Hai-gang;MENG Fu-xuan;YANG Shi-ying;SUN Man-ying;HU Xiang(Tropical Eco-Agricultural Research Institute,Yunnan Academy of Agricultural Sciences,Yuanmou Dry-Hot Valley Botanical Garden,Yuanmou 651300,PRC)

机构地区：[1]云南省农业科学院热区生态农业研究所,元谋干热河谷植物园,云南元谋651300

出　　处：《湖南农业科学》2022年第7期53-56,共4页Hunan Agricultural Sciences

基　　金：金沙江干热河谷生态农业科技创新及成果展示转化专项。

摘　　要：以云南干热河谷地区矮化密植栽培的丰产期澳芒为材料,研究了采果后不同程度回缩修剪对新梢生长、开花、挂果和产量等性状的影响。结果表明:结果母枝修剪到同一密节下方的抽梢率、新梢抽梢次数、新梢长、新梢茎粗、新梢叶片数都高于修剪到其上方的处理;结果母枝茎径与抽发新梢数、新梢抽梢次数、新梢长、新梢茎粗、新梢叶片数呈显著正相关,抽发新梢数与花序数呈极显著正相关,花序长与结果母枝挂果数呈显著正相关;矮化密植栽培的丰产树回缩修剪到上一年老枝可有效避免树冠郁闭,获得一定的产量;生产上建议选择健壮枝条作为结果母枝,已郁闭的果园或植株可回缩修剪至上一年老枝有饱满芽眼处,未郁闭的果园或植株可回缩修剪到当年生枝密节下方有饱满芽眼处。Using R2E2 mango entering the high yield period in dwarf,dense cultivation as material,we have studied the effects of postharvest pruning degrees on the shoot growth,flowering,fruit bearing and yield of the biennial bearing branches of R2E2 in the Dry-Hot Valley of Yuanmou County,Yunnan.The results showed that the sprouting rate,sprouting times,shoot length,shoot diameter and the leaf number of new shoots of the parent fruiting branch that was pruned till below one dense node were all higher than those of that was pruned till above the same dense node.The diameter of the parent fruiting branch exhibited a significantly positive correlation respectively with the shoot number,sprouting times,shoot length,shoot diameter and the leaf number of new shoots.The number of shoots had an extremely significantly positive relationship with the number of inflorescences.The inflorescence length was significantly positively correlated with the fruit-bearing number of the parent bearing branch.Pruning to the last year’s branches could effectively relieve canopy overcrowed and get a certain yield.In production,choosing robust branches as biennial bearing branches is suggested.For mango orchards or trees suffering from overcrowed canopies,it could prune to the plump buds of last year’s branches,while for those without overcrowed canopies,it could prune to the plump buds below dense nodes of the current-year branches.

关 键 词：澳芒 修剪程度 新梢 产量 

分 类 号：S667.7[农业科学—果树学]