运用生理生化、形态解剖指标综合评价苎麻抗旱性

在研究不同根型苎麻品种 (种质资源 )由干旱胁迫引起的形态、解剖特征与生理生化指标变化基础上 ,使用隶属函数法和相关分析及主成分分析法等统计模型确定供试品种的综合抗旱能力值 ,用以评定苎麻种质资源的抗旱性 ,其结果与根据产量计算的抗旱指数评定结果完全相符。品种黄壳铜和青壳子为强抗旱 ;宁都苎麻为中抗旱 ;细叶青、宜黄竹子麻和玉山麻则为低抗或不抗旱

Identification of drought-resistance by integrative utilization of drought-stress related observations in bio-physiology,morphology and anatomy for ramie

The integrative drought resistance values(IDRVs) were calculated by using the methods of correlation,principal component and membership function analyses based on the drought stress related observations in bio physiology,morphology and anatomy for the tested ramie [ Boehmeria nivea (L )Gaud ] varieties of different root type.The drought resistance of the ramie varieties,identified by IDRV,is the same as that resulted from the drought resistance indexes based on the fiber yield.In detail,varieties Huangketong and Qingkezi were strong drought resistant,Nindu Ramie was moderate drought resistant,while Xiyeqing,Yihuang Zhuzima and Yushanma were low or non resistant.;