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- Title
不同基因型大豆田间抗旱性综合评价及抗旱品种筛选.
- Authors
周学超; 胡海波; 李 峰; 刘迎春; 魏云山; 赵玉山; 王晓磊; 康泽然; 丁素荣
- Abstract
In order to screen drought-resistant soybean varieties suitable for planting in rain-fed agricultural areas of central and eastern Inner Mongolia and comprehensively evaluate the drought resistance performance of different soybean varieties in Inner Mongolia, and provide scientific basis for the selection and breeding for drought resistant soybean varieties in the rain fed agricultural areas of central and eastern Inner Mongolia, in this experiment, 34 representative varieties(lines) from various growth period groups in different regions of Northeast China were selected. Under field production conditions, two treatments of normal watering and natural drought were set. The agronomic traits, yield, and related indexes of soybean plants were investigated under differnt treatments, and the drought resistance coefficient of each index was calculated as an indicator to assess the drought resistance ability of the varieties. The principal component analysis method was employed to combine individual drought resistance coefficients into independent comprehensive indexes. Subsequently, the membership value of the comprehensive index was determined using the membership function to evaluate the drought resistance of the tested soybean varieties(lines). The results indicated that the coefficient of variation for the drought resistance coefficient of different agronomic traits exceeded 15%, with branch number exhibiting the highest coefficient of variation at 61%. The principal component analysis revealed that the cumulative contribution rate of the four principal components was 81.281%, explaining 81.281% of the variance and essentially representing 81% of the genetic information of the 13 traits. Through the application of the membership function method, five soybean varieties-Jiyu 406, Dengke 1, Fengdou 2, 2001-336-7, and Chidou 1-suitable for rain-fed agricultural areas in central and eastern Inner Mongolia were selected.
- Publication
Journal of Shanxi Agricultural Sciences, 2024, Vol 52, Issue 4, p16
- ISSN
1002-2481
- Publication type
Article
- DOI
10.3969/j.issn.1002-2481.2024.04.03