王文举;张亚红;牛锦凤;王振平;

• 1:宁夏大学农学院 葡萄与葡萄酒教育部工程研究中心
• 2:宁夏大学农学院
• 3:葡萄与葡萄酒教育部工程研究中心
• 4:宁夏林业局

摘要(Abstract)：

以1年生葡萄休眠枝条为试材,应用电导法研究了7个鲜食葡萄品种在不同低温下细胞膜透性的变化,配合Logistic方程求出拐点值,测定冰冻半致死温度(LT50)。结果表明,低温处理下,鲜食葡萄组织电解质渗出率增加呈S形曲线增长,在-15℃～-25℃之间随着温度的下降,葡萄组织电解质渗出率有一急剧升高的敏感区域;葡萄LT50在-13.9℃～-19.72℃之间;品种京秀、矢富罗莎抗冻性最强,美人指抗冻性最弱;提出了以电解质渗出率40.0%～52.0%相对应的拐点温度为枝条组织的临界致死温度。

关键词(KeyWords)： 鲜食葡萄;Logistic方程;抗寒性;电解质渗出率;半致死温度(LT50)

Abstract:

Keywords:

基金项目(Foundation): 宁夏自然科学基金(A1018);; 宁夏农牧厅农业科技攻关项目(A0408)。

作者(Author): 王文举;张亚红;牛锦凤;王振平;

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DOI:

参考文献(References)：

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