陕北葡萄品种、砧木与覆土间抗寒性的研究

Studies on cold resistance of grape varieties rootstocks and soil coverings in North Shaanxi

针对陕北葡萄生产中存在的历史性冻害问题，利用抗寒砧木山葡萄、山玫瑰和贝达，通过嫁接巨峰、龙眼及京早晶品种，再采用覆土１０ｃｍ、２０ｃｍ、５０ｃｍ不同厚度的２６个处理，以研究品种、砧木与覆土间抗寒性。试验表明，影响陕北葡萄生产的主要问题是根系冻害。利用山玫瑰作砧木，冬季只需覆土２０ｃｍ厚，就可以使葡萄栽培品种在陕北安全越冬。

The researchs were aimed at historical cold damages of grape production in North Shaanxi.We grafted Kyoho,Ryugan and Jingzaojing on cold resistant rootstocks V.amurensis ,Shan Mei Gui and Beta,covered different thickness of soil 10,20 and 50 cm to defend coldness.26 treatments were set up to study the telations between cold resistance and three conditions,variety,rootstock and soil covering.It indicated that the major problem affecting grape culture was cold damage on roots.The best treatment was using Shan Mei Gui as rootstock,coveriong 20 cm soil only,and most of grape varieties would be safety during winter in this condition in North Shaanxi.