Drought Resistance Screening of Different Maize Varieties at Germination Stage
Pei Yuhe
Xuan Huidong
Song Xiyun
Abstract：Twelve common maize varieties were treated with 20％ PEG-6000 (polyethylene glycol 6000) at the germination stage in lab.The germination energy,germination rate and related morphology indexes of the treatment and control were determined.The average membership function value of all varieties were calculated with the relative value of germination energy,germination rate,length and dry weight of radicle,storage material transformation rate and the seed germination drought-resistant index (GRDI).Then the drought resistance of 12 maize varieties were comprehensively evaluated.The results showed that by the membership function,the drought resistance of 12 different maize varieties were ranked as LN1 ＞ Xianfeng 968 ＞Nonghua 101 ＞ Jinhai 5 ＞ Zhengdan 958 ＞ Dongdan 80 ＞ Qingnong 8 ＞ Chuandan 14 ＞ Nongda 108 ＞Qingnong 105 ＞ Zhongdan 808 ＞ Liyu 16.LN1 and Xianfeng 968 were typical drought-resistant varieties.Nonghua 101,Jinhai 5,Zhengdan 958 and Dongdan 80 were middle drought-resistant varieties.The other varieties were not drought-resistant varieties.
Keywords：Maize varietyGermination stageDrought resistance screeningMembership function
Publication Date：2017-01-31
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 30-35 )