干旱地区农业研究2024，Vol.42Issue(1)：14-22,9.DOI:10.7606/j.issn.1000-7601.2024.01.02
小麦高代系的抗旱性状筛选与抗旱性评价
Screening of drought resistance traits and drought resistance evaluation in wheat advanced lines
摘要
Abstract
During the growing seasons of 2020-2021 and 2021-2022,43 and 20 wheat advanced lines were respectively evaluated for 8 agronomic traits and 8 yield traits in three different environments:Drought shelter(DS),Yangling Agricultural Station l(YAS)and Qianxian(QX).The contribution of each trait to wheat drought resistance was assessed by calculating the drought resistance index.Comprehensive analyses were performed using methods such as the membership function and cluster analysis to select wheat advanced lines with high drought re-sistance.The results indicated that under drought stress(DS),both agronomic and yield traits of wheat were sup-pressed to varying degrees.Based on the contribution of each trait to wheat drought resistance,several important in-dicators for evaluating wheat drought resistance,such as biomass,yield,spikelet number,and thousand-grain weight were selected.Through comprehensive drought resistance index(D)and cluster analysis,the tested wheat varieties(lines)were categorized into five levels:highly drought-resistant,drought-resistant,moderately drought-resistant,drought-sensitive,and highly drought-sensitive.In the two years of assessment,a total of 6 highly drought-resistant wheat lines including 21-1,21-34,21-39,21-18,21-2,and 22-17 were identified.关键词
小麦/抗旱指数/农艺性状/产量性状/聚类分析Key words
wheat/drought resistance index/agronomic traits/yield traits/cluster analysis分类
农业科技引用本文复制引用
宋璐杏,张闪闪,李玹,乔朋放,毕起,陈亮,胡银岗..小麦高代系的抗旱性状筛选与抗旱性评价[J].干旱地区农业研究,2024,42(1):14-22,9.基金项目
陕西省重点研发计划项目(2021KWZ-23) （2021KWZ-23）
杨凌种业创新重点研发计划项目(YLZY-XM-03) （YLZY-XM-03）
