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这里所说的嫁接苗,是指以葡萄优良品种为接穗,以山葡萄、贝达、北醇等抗寒力较强的葡萄为砧木嫁接而成的抗逆性较强又具有优良品种特性的葡萄苗。从我县几年来的栽培实践看,嫁接苗具有下列优点:1.提高抗寒能力,促进葡萄北移。一般葡萄品种的根系,只能抵抗-5℃左右低温。超过这个极限就会受冻,轻者推后萌发降低产量。重者全株死亡。而山葡萄根系可抗-18℃左右低温,贝达根系可抗-11℃左右低温,北醇根系可抗-9℃左右低温。因此,采用山葡萄、贝达、北醇葡萄进行嫁接,大大提高了葡萄抗寒能
Grafted seedlings here, refers to the grape varieties for the scion, grapes, Beida, Beiqiu and other cold-hard grapes as a rootstock grafted into a strong resistance and has excellent varieties of grapes seedling. From my county cultivation practices in recent years, the grafted seedlings have the following advantages: 1. To improve the ability of cold, promote grape north. The root of the general grape varieties, can only resist -5 ℃ low temperature. Exceeds this limit will be cold, the light pushed after the germination to reduce production. Severe whole plant died. The grape root can be resistant to mountain temperatures around -18 ℃, Beida root can be anti -11 ℃ low temperature, root alcohol can be resistant to about -9 ℃ low temperature. Therefore, the use of grapes, Beida, Bei grapes for grafting, greatly improving the grape cold hardiness