断根处理对猕猴桃生长势及果实品质的影响初探

Effects of root-cutting on vegetative growth and fruit quality of kiwifruit

以金果和金艳猕猴桃为试材,在离干80 cm的基础上,设计半环断根深度60、80 cm和闭环断根深度60、80 cm 4个断根处理,探究不同断根处理对树体营养生长、果实产量和品质的影响。结果表明,不同断根处理对金果和金艳猕猴桃树体营养生长的控制程度不同,对单株产量和果实品质的影响也不同,其中以闭环断根深度60、80 cm处理对主蔓上徒长枝数量、长度和粗度的控制效果最好,能有效提高单株产量和果实品质,闭环断根深度60 cm可操作性更强。

’Hort 16A’ and ’Jinyan’ kiwifruit were used as test materials, on the basis of 80 cm from the stem, four treatments were designed to cut the roots, including depth of 60 cm, 80 cm with half circle, and 60 cm, 80 cm with full circle,to explore the effects of different treatments on vegetative growth, yield and fruit quality of kiwifruit. The results showed that,different root-cutting treatments had different effects on vegetative growth, yield and fruit quality of ’Hort 16A’ and ’Jinyan’.Among them, the depth of 60 cm and 80 cm root-cuttings with full circle had the best effect on controlling the number, length and thickness of epicormic branches on main vine, which could effectively improve yield per tree and fruit quality. The depth of 60 cm root-cutting with full circle has a better operability.