韩国主栽葡萄品种的耐寒性研究

Cold hardiness of korean chief grapevine cultivars

为比较几个葡萄品种的耐寒性,对‘红地球’、‘红光无核’、‘巨峰’等8个葡萄品种处于休眠期和树液流动期的结果母枝进行了低温处理.结果表明,在休眠期‘红地球’、‘红光无核’、‘巨峰’、‘Muscat Bailey A(MBA)’的结果母枝的冻死温度分别为-20,-22,-24,-26℃,而‘Tamnara’、‘清水’、‘红丹’为-28℃,而‘康拜尔’在-30℃却未冻死;在树液流动期‘红地球’、‘红光无核’、‘MBA’及‘康拜尔’4个品种的结果母枝在-8℃条件下也未受冻害.另外,低温持续时间可加重休眠期结果母枝的冻害发生程度.

To compare the cold hardiness of eight grapevine varieties, such as ‘Red Globe’, ‘Flame Seedless’, ‘Kyoho’, etc., bearing mother branches were treated in cold temperature during dormant stage and sap movement stage. The winter killing temperatures of cold damage in bearing mother branches during dormant stage were -20 ℃ to ‘Red Globe’, -22 ℃ to ‘Flame Seedless’, -24 ℃ to ‘Kyoho’, -26 ℃ to ‘MBA’, - 28 ℃ to ‘ Tamnara’, ‘ Cheongsoo’ and ‘ Hongdan’, and - 30 ℃ to ‘ Campbell Early’. There was no damages to the bearing mother branches of ‘Red Globe’, ‘Flame Seedless’, ‘MBA’ and ‘Campbell Early’ at -8 ℃ during sap movement stage. The containning hours of chilling could increase the cold injury of bearing mother branches in dormant stage.