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辽宁省现有实生栗树多是粗放管理。嫁接树为了早期丰产,采用多留技量的修剪法,结果形成主侧枝不明显,表层结实等低产树形结构。由于不能形成立体结果的树形结构造成头几年丰产,而盛果期不能高产。为此,研究改造低产树形结构的修剪技术,已是当务之急。在有关单位对实生栗树和嫁接树丰产树形的调查基础上,根据丰产树形结构的要求,从修剪强度入手,配合修剪方法进行了试验。提出改造低产树形结构的重、中两种修剪技术,探讨修剪技术和修剪方法对改造树形结构的效果及对树体生育性状的影响。
Liaoning Province, the existing real chestnut trees are mostly extensive management. Grafting tree for early high yield, using more technology to retain the pruning method, the results of the formation of the main collateral is not obvious, such as low-yield surface tree structure. Due to the three-dimensional structure of the tree structure can not result in the first few years of high yield, and full fruit can not be high yield. Therefore, it is imperative to study the pruning technology of low-yield tree structure. Based on the survey of the tree species of real chestnut and grafted tree, the author conducted the experiment according to the requirement of high yield tree structure and the pruning strength. This paper proposed two kinds of pruning techniques, which were to reconstruct the low-yielding tree structure, and discussed the effect of pruning technique and pruning method on the tree structure reconstruction and the effect on the reproductive traits of tree.