Phenotypic diversity analysis of 10 varieties of Cosmos bipinnata
The phenological period,growth dynamics and 22 phenotypic characters of 10 varieties for Cosmos bipinnata were used as indicators.At the same time,species variation,genetic diversity,and cluster analysis on them to explore their genetic relationship.The results showed that:(1)There were obvious differences in the phenological period of different varieties for Cosmos bipinnata.(2)The growth process of each variety followed the"S"curve.(3)By analysed the variation of phenotypic traits in 20 quantitative traits,The phenotypic differences of varieties of Cosmos bipinnata mainly showed in flower color,pedicel length,number of seeds per fruit,crown diameter,flowering amount,etc.(4)Cluster analysis classified Cosmos bipinnata into two categories:'Psyche White','White Pop Socks'were in the same category as'Sweet Sixteen',this kind of plant the height width was relatively small,the pedicel was length,leaf area was small,number of seeds per fruit was larger and the color was bright and simple.The rest 7 varieties of'Apollo Pink Lace Gradient','Chestnut Yellow','Sea Shells','Ladybro','Blue Dream','Rose red'and'Star of Tehran'were in the same category.In short,the results showed that the varieties of Cosmos bipinnata had extensive variation and abundant genetic diversity.
万方数据
维普
