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大豆科学  2015 

大豆耐旱种质的鉴定

DOI: 10.11861/j.issn.1000-9841.2015.01.0163, PP. 163-167

Keywords: 大豆,耐旱性,隶属函数值,抗旱系数,产量

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Abstract:

采用盆栽的方法,依据隶属函数值法,对18个大豆品种分别进行营养生长期和生殖生长期的抗旱鉴定;同时采用田间原位测定的方法,依据抗旱系数和产量,对这18个品种分别种植在半干旱地区(朝阳)和湿润-半湿润地区(沈阳)进行全生育期的抗旱鉴定。结果表明:依据隶属函数值法共筛选出营养生长期较强耐旱型(2级)品种2个,分别是辽豆24和锦豆36;生殖生长期较强耐旱型(2级)品种2个,分别是辽豆26和铁豆37;全生育期抗旱鉴定表明铁豆49为强耐旱品种;综合全生育期的抗旱系数和耐旱隶属函数值,筛选出3个优良大豆品种,分别为辽豆26、铁豆37和铁豆49,建议在半干旱地区推广种植。研究认为对大豆种质耐旱性鉴定采用隶属函数值法及全生育期综合鉴定的方法较为准确,与营养生长期相比生殖生长期耐旱性结果鉴定与全生育期鉴定结果更为一致。

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