干旱地区农业研究2026，Vol.44Issue(1)：22-30,9.DOI:10.7606/j.issn.1000-7601.2026.01.03
早熟玉米自交系萌发期和苗期抗旱性鉴定与综合评价
Identification and comprehensive evaluation of drought resistance of early-maturing maize inbred lines at germination and seedling stages
摘要
Abstract
In order to to investigate the drought resistance of different early-maturing maize inbred lines at both germination and seedling stages,and to establish a'germination-seedling'two-stage drought resistance evaluation technology system,47 early-maturing maize inbred lines were used as experimental materials,to identify excellent inbred lines with drought resistance at both germination and seedling stages.The results showed that,-0.30 MPa(PEG-6000)treatment was identified as the optimal osmotic pressure concentration for evaluating drought resist-ance in maize inbred lines at the germination stage.By measuring the seed germination drought tolerance index un-der this osmotic stress,23 inbred lines with resistant and highly resistant levels were selected.The survival rate af-ter recurrent drought survival rate was measured at the seedling stage,leading to the selection of 29 inbred lines with resistant and highly drought resistant.Based on the comprehensive evaluation,20 inbred lines demonstrated re-sistant and highly resistant at both germination and seedling stages,including four lines with highly drought resist-ant:206-305,NY624,207Y-4,and H19-9.Drought resistance levels of six inbred lines showed susceptible and highly susceptible,among which,one line of H05-100 was classified as highly susceptible.关键词
早熟玉米自交系/萌发期/苗期/抗旱性鉴定/双阶段抗旱评价Key words
early-maturing maize inbred lines/germination stage/seedling stage/drought-resistance identifi-cation/two-stage drought evaluation分类
农业科技引用本文复制引用
任小燕,白育铭,郭峰,常勃,王怡,张玉娥..早熟玉米自交系萌发期和苗期抗旱性鉴定与综合评价[J].干旱地区农业研究,2026,44(1):22-30,9.基金项目
山西农业大学生物育种工程项目(YZGC088) （YZGC088）
山西农业大学科技创新提升工程项目(CXGC2025044) （CXGC2025044）
中央引导地方科技发展资金项目(YDZJSX20231C016) （YDZJSX20231C016）
