大豆科学2024，Vol.43Issue(3)：274-284,11.DOI:10.11861/j.issn.1000-9841.2024.03.0274
新疆引进北方大豆种质苗期抗旱性综合评价
Comprehensive Evaluation of Drought Resistance at Seedling Stage of Introduced Northern Soybean Germplasms in Xinjiang
摘要
Abstract
Xinjiang covers about one-sixth Chinese land area,but it has less than 4%of the country's water resources.Under the influence of climate change and human activities,Xinjiang's drought situation is worsening year by year.The purpose of this study is to clear the drought resistance of 55 soybean materials introduced to Xinjiang,to screen elite drought resistant germplasms adapted to Xinjiang,and to find suitable stress for drought resistance identification.We measured their leaf length,leaf width,petiole length,plant height,stem diameter,main stem number,aboveground fresh weight and aboveground dry weight,under three drought stress conditions(relative soil water content 50%-60%,40%-50%,30%-40%)and well-watered condition(relative soil water content≥65%),which were accurately controlled water content via pot weighing method.The principal component analysis,subordination function method and cluster analysis were employed to evaluate the drought tolerance of soybean.The results showed that,eight traits could be summarized into three comprehensive indexes through principal component analysis.The D-value range from 0.153 to 0.690.A total of 55 varieties were classified into 5 categories,including 13 drought-resistant varieties,12 medium drought-resistant varieties,17 low sensitive varieties,7 sensitive varieties and 6 extremely sensitive varieties by cluster analysis.Twelve elite drought tolerance germplasms including,Dongnongdou 253,Henong 95,Dongpu 90 and Dongsheng 110 were screened,which provided theoretical basis and parent materials for soybean drought resistance breeding in Xinjiang.关键词
大豆/苗期/抗旱性/主成分分析/隶属函数分析Key words
soybean/seedling stage/drought tolerance/principal component analysis/subordination function analysis引用本文复制引用
吴玉成,田蕊,时晓磊,韩岱,刘兵强,丁孙磊,山其米克,严勇亮..新疆引进北方大豆种质苗期抗旱性综合评价[J].大豆科学,2024,43(3):274-284,11.基金项目
新疆维吾尔自治区重大科技专项项目(2022A03004) （2022A03004）
中央引导地方科技发展专项资金项目(ZYYD2022C02) （ZYYD2022C02）
新疆维吾尔自治区区域协同创新专项(2020E01005) （2020E01005）
财政部和农业农村部,国家现代农业产业技术体系(CARS-04-CES27) （CARS-04-CES27）
天山创新团队"大豆高产抗逆育种与超高产栽培创新团队" （）
新疆大豆产业技术体系(XJARS-04). （XJARS-04）
