Abstract:
Through the field experiment, 205 Lens culinaris Medik. germplasms collected from home and abroad were evaluated comprehensively by the statistical methods of variability analysis, correlation analysis, principal component analysis and cluster analysis, including plant height, main stem section number, branch number, podding section, pod number per, grain number per plan, single pod grain number, single pod yield, pod length, hundred-grain weigh. The results showed that the coefficient of variation of agronomic traits of these germplasm resources ranged from large to small: pod number, yield per plant, podding section, grain number per plant, pods of branches, hundred-grain weight, plant height, main stem section number, single pod grain number, pod length. There were different degrees of correlation among 10 agronomic traits. Principal component analysis showed that the eigenvalues of the first three principal components were all greater than 1, and the cumulative contribution rate was greater than 60.41%. The first principal component was mainly related to pod number and yield per plant.The second component was mainly related to plant height, branch number, main stem section number, hundred-grain weight, pod length, single pod grain number and podding section. The third component was mainly related to grain number per plant. Cluster analysis divided 205 germplasm into 6 groups at genetic distance of 30.42 germplasms with more pods per plant, more seeds per plant, more seeds per pod, higher yield per plant and heavier hundred-grain were screened.