Study on phenotypic diversity of 8 cultivars of Cosmos sulphureus
In this experiment,the genetic relationship of 8 Cosmos sulphureus varieties were explored on their species variation,genetic diversity and cluster analysis with the phenological period,growth dynamics and 23 phenotypic characters.The results showed that there were obvious differences in the phenological period of different varieties of Cosmos sulphureus.The growth process of each variety followed the"S"curve.The phenotypic variation analysis on 22 quantitative traits showed differences of Cosmos sulphureus on flower color,plant height,crown diameter,flowering amount,number of seeds per fruit,main stem diameter,etc.Cluster analysis classified the 8 Cosmos sulphureus varieties into three categories.'Limara Lemon'was in the same category as'Elegant'.They displayed short plant height,crown width and pedicels with similar color in flower.'Polidor'and'GC56'were in the same category showing relatively high plant height,large crown size,and long pedicels.The rest four varieties of Cosmos sulphureus were in the same category.In short,the results show that the varieties of Cosmos sulphureus had extensive variation and abundant genetic diversity.
万方数据
维普
