不同豌豆品种富硒能力鉴定评价OA

Taking fifty pea(Pisum sativum L.)germplasm resources as the test materials,the changes in agronomic traits and grain selenium content in different pea germplasms were studied under selenium foliar application and non-application treatments,in order to identify the selenium-rich ability in different pea varieties and explore the high Se-rich germplasm resources.The results showed that Se content in seeds of different pea varieties ranged from 0.010 9-0.042 2 mg·kg-1,indicating genotypic variation.Se content was in seeds of all varieties increased significantly,with the average content rising to 0.364 6 mg·kg-1 after the selenium treatment,which was 15.92 times higher than that of unapplied plants.Cluster analysis classified the tested varieties into three categories based on selenium content,11 high selenium enriched content,37 selenium enriched content and 2 low selenium enriched content.It was proved that pea was a crop with strong ability for selenium capacity.Correlation analysis results showed that selenium enrichment indicators were correlated with growth period,seed colour,plant height and yield.Seed color might be an important factor affecting the selenium enrichment ability in pea seeds.