宁夏引黄灌区盐碱地不同玉米品种适应性评价
Adaptability Evaluation of Different Maize Varieties in Saline-alkali Land of the Ningxia Yellow River Irrigation Area
屈小玉 1田娜 1吴娜 1刘吉利2
作者信息
- 1. 宁夏大学农学院,银川 750021
- 2. 宁夏大学农学院,银川 750021;宁夏大学西北退化生态系统恢复与重建教育部重点实验室,银川 750021;宁夏大学生态环境学院,银川 750021
- 折叠
摘要
以宁夏引黄灌区种植的21个玉米品种为材料,结合室内萌芽期耐盐性鉴定与田间原位鉴定,进行种质资源适应性评价.结果表明,不同浓度的NaCl溶液均会对玉米种子的萌发产生抑制作用,相对胚芽重对盐胁迫最为敏感,通过主成分分析可筛选出7个指标进行综合评价.依据加权隶属函数值进行聚类分析,可将21个玉米品种分为4个类群,包括3个强耐盐品种,10个中耐盐品种,7个弱耐盐品种,1个盐敏感品种.试验结果表明,强耐盐品种禾育157、银玉238和DK815适宜宁夏引黄灌区种植.
Abstract
Twenty-one maize varieties planted in the Yellow River irrigation area of Ningxia were used as mate-rials,and the adaptability of germplasm resources was evaluated by combining indoor salt tolerance identification at germination stage and field in-situ identification.The results showed that different concentrations of NaCl solution could inhibit the germination of maize seeds,and the relative germ weight was the most sensitive to salt stress.Sev-en indexes could be selected for comprehensive evaluation by principal component analysis.According to the weighted membership function value,21 maize varieties were divided into 4 groups,including 3 strong salt-tolerant varieties,10 medium salt-tolerant varieties,7 weak salt-tolerant varieties and 1 salt-sensitive variety.The results showed that Heyu157,Yinyu238 and DK815 were more suitable for planting in the Yellow River irrigation area of Ningxia.
关键词
玉米/耐盐性/萌芽期/产量/主成分分析/聚类分析Key words
Maize/Salt tolerance/Germination period/Yield/Principal component analysis/Cluster analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据