Top-grafting for Resisting Early Defoliation and Flower Bud Germination of Pears
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摘要: 选择3个抗逆性强的梨品种高接于翠冠梨主、侧枝延长枝上, 探讨高接抗逆性品种防控梨叶早衰脱落与花芽提早萌动的效果。结果表明:高接处理植株当年可使高接部位以下3050cm纵向范围内叶片脱落延缓1520d, 抑制高接部位以下80100cm纵向范围内花芽提早萌动, 翌年开花数量、花朵坐果率及单株产量显著或极显著高于对照。本研究结果推广应用前景看好。Abstract: Top-grafting pears with resistant varieties to prevent early defoliation and germination of the flower buds was studied.Three cultivars were chosen to graft onto limbs and branches of Cuiguan pear.The grafting postponed the leaf-falling 30-50cm below the insertion point for 10-15days.It also inhibited early germination of the flower buds located 80-100cm below the insertion.Additionally, the number of flowers, fruiting rate and single plant yield of the pear a year after the top-grafting were all significantly more than the control.It was concluded that the top-grafting with the resistant varieties could be a means applied to deter the early defoliation and flower bud germinating for the pears.
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Key words:
- Pear /
- top-grafting /
- resistant variety /
- control /
- early defoliation /
- early germinating of flower bud
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