Diversity Analysis on Flowering Stage and Pistillate Flower Traits of Different Myrica rubra Germplasm

order to study the flowering stage and pistillate flower traits of Myrica rubragermplasm, morphological observations were made on flowering stage and inflorescence ofpistillate flower of 49 Myrica rubra germplasm with 6-10-year in the National Field Gene Bank in Linhai, Zhejiang province in March and April of 2018.The results showed that it had large difference of flowering stage among germplasm.The variation coefficient of inflorescence diameter, length and floret number per inflorescence was 12.60%, 22.90% and 18.95%.Most of pistillate flowers had cylindrical inflorescence, with stigma in dark purple red and relatively large.Correlation analysis demonstrated that the opening degree of pistillate flower had significantly positive correlation with the color of pistillate flower, but negative correlation with stigma size.Pistillate flower color and stigma size showed significant negative correlation, while number of florets per inflorescence and inflorescence diameter showed significant positive correlation.Cluster analysis indicated that 49 M.rubra germplasm resources could be classified into 3 groups, including respectively 37, 9 and 3 germplastm.This study shows that the pistillate flower traits of M.rubra germplasm resources were rich in diversity, and it could provide reference for classification, identification and utilization of M.rubra germplasm.