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以11年生中间砧为‘LS’的‘烟富6号’苹果为试材,研究拉枝角度对树体生长、生理特性、叶片营养和果实品质的影响。结果表明:主枝拉枝角度为110°时,总枝量、叶丛枝、短枝和中枝量高于其他处理,叶片净光合速率,叶片可溶性糖、淀粉含量和脱落酸含量显著高于其他处理,而叶片蒸腾速率,叶片氮、生长素和赤霉素含量却显著低于其他处理,果实单果重、可溶性固形物含量和硬度都高于其他处理;主枝拉枝角度为130°时,果实着色面积最大。陇东地区矮砧密植苹果树主枝最适宜的拉枝角度为110°。
The experiment was conducted to study the effects of different angles on the growth, physiological characteristics, leaf nutrition and fruit quality of ’Yanfu 6’ with 11-year-old middle anvil as ’LS’. The results showed that the total branch number, the number of branches, branches and branches were higher than those of other treatments at the angle of 110 °, the net photosynthetic rate, leaf soluble sugar content, starch content and abscisic acid content of leaves were significantly higher than those of other treatments While the leaf transpiration rate, leaf nitrogen, auxin and gibberellin content were significantly lower than other treatments, fruit weight per unit fruit, soluble solids content and hardness were higher than other treatments; , Fruit coloring the largest area. Longdong densely dwarf animated apple tree main branch of the most appropriate pull angle of 110 °.