12个葡萄砧木品种枝条抗寒性综合评价  

Comprehensive Evaluation of Cold Resistance of 12 Grape Rootstock Cultivars Branches

作　　者：常强 朱燕芳 高波 郝燕[1] CHANG Qiang;ZHU Yan-fang;GAO Bo;HAO Yan(Institute of Fruit and Floriculture Research,Gansu Academy of Agricultural Sciences,Lanzhou 730070,Gansu China)

机构地区：[1]甘肃省农业科学院林果花卉研究所,中国兰州730070

出　　处：《亚热带植物科学》2024年第2期137-142,共6页Subtropical Plant Science

基　　金：国家自然科学基金(32060650);国家葡萄产业技术体系兰州综合试验站项目(CARS-29-27);甘肃省技术创新引导计划-科技特派团专项(23CXNA0034)。

摘　　要：采用人工模拟低温处理的12个葡萄砧木品种枝条为材料,测定枝条相对电导率及脯氨酸、丙二醛、可溶性糖、可溶性蛋白含量,基于相对电导率和Logistic方程预测各品种的半致死温度(LT50),并运用隶属函数法对其抗寒性进行综合评价,为甘肃引进抗寒性优良葡萄砧木提供科学依据。结果表明,各品种砧木枝条的相对电导率、可溶性蛋白、可溶性糖、丙二醛、游离脯氨酸含量均随温度降低逐渐增加,半致死温度(LT_(50))介于–16.32℃~–24.84℃;综合评价表明,12个葡萄品种砧木的抗寒性强弱依次为贝达、山河2号、101-14、5BB、188-08、SO4、Valliant、3309、1103P、Du Lot、BRNo.2、110R。In order to provide scientific basis for the introduction of excellent cold-resistant rootstocks in Gansu,the branches of 12 grape rootstock varieties treated with artificial simulated low temperature were used as test materials,and the relative conductivity,proline,malondialdehyde,soluble sugar and soluble protein contents of the branches were determined.The relative conductivity combined with the Logistic equation was used to predict the half-lethal temperature(LT50)of each variety,and the subordinate function method was applied to make a comprehensive evaluation of the cold resistance of grape rootstocks.The results showed that the relative conductivity,soluble protein,soluble sugar,malondialdehyde,and free proline contents of the branches of each grape rootstock increased gradually,and the calculated half-lethal temperatures(LT50)ranged from–16.32℃to–24.84;and the res℃ults of the comprehensive evaluation showed that the strengths of cold resistance of 12 grape varieties rootstocks were in the order of Beda,Shanhe 2,101-14,5BB,188-08,SO4,Valliant,3309,1103P,Du Lot,BRNo.2,110R.

关 键 词：葡萄砧木 低温胁迫 抗寒性 隶属函数 

分 类 号：S663.1[农业科学—果树学]