薄壳山核桃发枝结果习性及修剪试验初报  

Preliminary report of pruning practice and branching and fruiting habit of Carya illinoinensis

作　　者：李俊南[1] 熊新武[1] 习学良[1] 杨素琼[1] 谢马宁 

机构地区：[1]云南省林业科学院漾濞核桃研究院,云南漾濞672500 [2]漾濞彝族自治县林业局,云南漾濞672500

出　　处：《河北林果研究》2015年第3期256-259,共4页Hebei Journal of Forestry and Orchard Research

基　　金：国家产业化专项基金"云南省薄壳山核桃良种繁育基地建设"(2009-087)

摘　　要：以漾濞核桃研究院内的薄壳山核桃无性系中幼龄树为观测对象,通过调查研究薄壳山核桃的发枝结果习性,以及进行1a生结果枝和未结果枝的轻剪、中剪、重剪、缓放4种修剪处理,分析中幼树的发枝规律和修剪对发枝结果的影响,以探讨合理的修剪方法。结果表明：薄壳山核桃结果母枝以萌发2~3个发育枝、3个以上雄花枝、1~2个结果枝为主;结果枝率较高,最高可达80%以上,果枝多表现为中短果枝;在4种处理中,1a生结果母枝的发枝数、结果枝数、坐果数都是中剪处理效果最好;1a生未结果枝3种修剪处理和对照相比,发枝数均高于对照,但结果枝数和坐果数均低于对照。Taking the Carya illinoensis young tree clone in Yangbi Walnut Research Institute as the observation object,through the investigation and study of the pecan tree branching,fruiting,and habits,the effects of its branching rule and pruning of medium and sapling branches on its fruiting branches were analyzed under four treatments of light cutting,medium cutting,heavy cutting and un-cutting on the fruiting and un-fruiting branches of 1a Carya illinoensis young tree to explore the reasonable pruning method.The results showed that there were 2~3growth shoots germinated,more than 3male flowers shoots and 1~2fruiting shoots on the main fruiting branches,with a very high pecan fruiting rate of 80%branches and better performance of the medium and short branches.Of the four treatments,medium pruning performed the best with the biggest number of branching shoots,fruiting shoots,and bearing shoots of the 1aparent branches.Three pruning treatments had higher number of branching shoots in the 1aun-fruiting branches compared with the control,but,its branching and bearing shoot number was lower than that of the control.

关 键 词：薄壳山核桃 修剪 发枝结果习性 结果枝率 果枝长 

分 类 号：S664.1[农业科学—果树学]