大麦种质资源成株期抗旱性鉴定及抗旱指标筛选

徐银萍,潘永东,刘强德,姚元虎,贾延春,任诚,火克仓,陈文庆,赵锋,包奇军,张华瑜

Drought resistance identification and drought resistance indexes screening of barley resources at mature period

Yin-Ping XU,Yong-Dong PAN,Qiang-De LIU,Yuan-Hu YAO,Yan-Chun JIA,Cheng REN,Ke-Cang HUO,Wen-Qing CHEN,Feng ZHAO,Qi-Jun BAO,Hua-Yu ZHANG

表4 供试大麦种质各指标抗旱系数在不同区间的分布

Table 4 Distribution in DC intervals for drought resistance coefficients of all indexes in tested barley germplasm

指标 Index 0<DC<0.2 0.2<DC<0.4 0.4<DC<0.6 0.6<DC<0.8 0.8<DC<1.0 次数 Times 频率 Freq.(%) 次数 Times 频率 Freq.(%) 次数 Times 频率 Freq.(%) 次数 Times 频率 Freq.(%) 次数 Times 频率 Freq.(%) 株高 PH 0 0 0 0 1 3 23 77 6 20 穗长 EL 0 0 0 0 0 0 14 47 16 53 分蘖数 TN 0 0 0 0 0 0 10 33 20 67 单株粒数GNPP 0 0 0 0 2 6.7 12 40 16 53.3 单株粒GWPP 0 0 0 0 1 3 15 50 14 47 穗粒数 KNPS 0 0 0 0 0 0 5 17 25 83 千粒重 TGW 0 0 0 0 0 0 1 3 29 97 产量 Y 0 0 14 46.7 10 33.3 2 6.7 4 13.3