Secondary grafting method of hongyang kiwifruit

Abstract

The invention discloses a secondary grafting method of hongyang kiwifruit. The secondary grafting method includes: cultivating first-grade grafting stock actinidia valvata; grafting actinidia valvata and a wild kiwifruit variety, and growing seedlings; grafting hongyang kiwifruit at a high position of the wild kiwifruit after growing for one year for cultivation. By adopting the method, the hongyang kiwifruit is high in adaptability and can normally grown in places different in altitude, terrain, soil and river valley and flat ground, so that kiwifruit cultivation area can be widened. The hongyang kiwifruit is high in yield, large and regular in fruit shape, orderly in size and good in taste, and the problem that actinidia valvata and the hongyang kiwifruit are low in affinity and grafting survival rate is solved.

Description

technical field [0001] The invention relates to a grafting method of kiwifruit, in particular to a secondary grafting method of Hongyang kiwifruit. Background technique [0002] At present, Hongyang kiwifruit grafting mainly uses wild kiwifruit as rootstock, and one-time grafting, the existing problem is that the kiwifruit root is a fleshy root, the main root is underdeveloped, and the main root stops growing when the seedlings have 2 to 3 true leaves. With the growth and development of lateral roots, the main root gradually withered and formed a cluster-like lateral root group. Because kiwifruit has a shallow root system and a thick root cortex, it is sensitive to soil anoxic reactions and often cannot survive in waterlogged areas. Kiwifruit has poor water resistance, especially in the seedling stage, the roots will die after one day of waterlogging, and the roots of mature seedlings will be infected and die after 48 hours of waterlogging. Therefore, the threat of soil wa...

AI Technical Summary

Problems solved by technology

[0002] At present, the grafting of Hongyang kiwifruit mainly uses wild kiwifruit as the rootstock, one-time grafting, the existing problem is that the kiwifruit root is a fleshy root, the main root is underdeveloped, and the main root stops growing when the seedlings have 2 to 3 true leaves

Therefore, soil waterlogging is more of a threat than drought. Hongyang kiwifruit is prone to death and has a low survival rate in low-lying land with poor drainage or in the season of continuous long-term rain.

[0003] At present, the kiwifruit varieties vigorously promoted and cultivated in China are mainly "Hongyang", "Donghong", "Jinguo", "Miliang No. 1", "Qinmei" and "Jinkui", all of which are selected from Chinese The seedlings of kiwifruit and delicious kiwifruit are used as rootstocks, and there are two major problems that are not resistant to water and not resistant to diseases, especially in the plains and water-prone mountainous areas of our country.

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