摘要
用干旱棚分别在正常供水与水分胁迫条件下 ,研究了抗旱性不同的 4个花生品种叶片相对含水量、失水率、萎蔫指数、株高、根冠比、座果率的变化与品种抗旱性的关系 ,并用隶属函数进行抗旱性综合分析。结果表明 :4个花生品种各项抗旱性生理及形态指标的变化与抗旱指数的相关性次序是 :根冠比 >叶片萎蔫指数 >叶片失水率 >叶片相对含水量 >座果率 >株高 ;品种综合抗旱性强弱为 :远杂 930 7>远杂 910 2 >豫花 6号 >白沙 10 16。
The relationships between the changes of relative water content (RWC),water losing rate (WLR),withered index, plant height, root crown ratio, seed set rate, and drought resistant ability under both normal and drought conditions. The drought resistant ability of every variety was comprehensively analysed by subordinate function. The results were as follows: the correlative relationships between the physiological and ecological indexes and drought resistance of the varieties was in such order: root shoot ratio>withered index>WLR>WRC>seed set rate>plant height. The comprehensive drought ability of the varieties was in such order: Yuanza 9307>Yuanza 9102>Yuhua 6>Baisha 1016.So it will provide scientific basis for breeding and identification of new peanut varieties of drought resistance.
出处
《干旱地区农业研究》
CSCD
北大核心
2002年第3期89-92,共4页
Agricultural Research in the Arid Areas
基金
洛阳市科委科技攻关项目 (9910 0 5 )
关键词
花生
抗旱指标
隶属函数
综合分析
抗旱育种
peanut varieties
drought resistance
subordinate function
comprehensive analysis
