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引言葡萄是亚热带作物,抗寒力很低,在我国黄河以北的地区每年均需防寒才能越冬。黑龙江省位于我国的最北部,冬季酷寒,绝对最低温度可达-35°—48℃,各季防寒尤须注意,如果稍一不慎,根部即遭冻害。这个问题不仅在黑龙江存在,在吉林、辽宁等省也是存在的,只不过程度不同而已,从而使产量提不高和需要较高额的防塞费用,对大面积栽培是有所阻碍的,因此必须研究出提高葡萄抗塞力的办法。我们利用抗寒砧木其上嫁接栽培品种与自根同品
Introduction Grapes are subtropical crops, cold resistance is very low, in our region north of the Yellow River every year to be cold to winter. Heilongjiang Province is located in the most northern part of China, winter cold, the absolute minimum temperature up to -35 ° -48 ℃, especially in the cold-season must pay attention to, if the slightest mistake, the root is frostbite. This problem exists not only in Heilongjiang Province, but also in Jilin Province and Liaoning Province. However, the degree is different, so that the output is not high and the cost of anti-plugging is high, which hinders the cultivation of large area. Therefore, it is necessary to Developed ways to improve the resistance of the grape. We use cold-resistant rootstock which grafted cultivars and rootstocks