Multivariate Genetic Analysis on Main Agronimic Characters in Different Mung Bean Mutants

The correlation analysis,principal component analysis and cluster analysis of 10 main agronomic characters of 12 mung bean mutants were analyzed.The results showed the variant coefficient of 10 major agronomic trait was 16.01%(No.pods per plant)～3.64%(pod width).The results of correlation analysis revealed that the No.pods of plant had very significantly positive correlation with yield per plant.There was a significantly negative relationship between 100-seed weight and yield per plant.A very significantly negative relationship was found between growth period and yield per plant.The results of principal component analysis showed that the cumulative contribution ratio of the first four principal components including yield components factors,No.seeds per pod factors,plant shape factor and pod width factors to the total variation reached 87.45%.The 12 mutants were classified into 5 groups using cluster analysis, and there was a significant difference between the various types of yield per plant.Only by taking different agronomic characters comprehensively into consideration in selecting the mung been mutants,can we really select the muants with fine characters.