%0 Journal Article
%A DU Hong-Yan
%A DU Qing-Xin
%A HE Feng
%A LIU Pan-Feng
%A QING Jun
%A WANG Lu
%A ZHU Li-Li
%T Variation and Probability Grading of Main Quantitative Traits of Fruits for *Eucommia ulmoides* Germplasm
%D 2019
%R 10.7525/j.issn.1673-5102.2019.03.009
%J Bulletin of Botanical Research
%P 387-394
%V 39
%N 3
%X To make better evaluation of *Eucommia ulmoides* fruits, enrich the content of quantitative and normalized *E.ulmoides* germplasm descriptor system, we collected 331 samples of Eucommia germplasm and studied 18 fruits quantitative traits by statistical analysis and probability grading. The large variation present in *E.ulmoides* fruit quantitative characters, and the highest occurred in stearic acid content(17.88%), followed by seed size index(17.17%), and the smallest occurred in linolenic acid content(4.64%). K-S test showed that 16 fruit quantitative traits conformed to the normal distribution with the significance value higher than 0.05, except seed horizontal diameter and seed size index. Seed horizontal diameter and seed size index that followed skewed distribution could be regarded and treated as those conforming to normal distribution. Eighteen quantitative traits that conformed to the normal distribution could be divided into 5 grades by 4 dividing points including X-1.2818S, X-0.5246S, X+0.5246S and X+1.2818S. An index system of probability grading for 18 quantitative traits was built, which could provide reference for evaluation, utilization and breeding programm of *E.ulmoides* resources, and it could provide a reference for specification and data standardization of *E.ulmoides* fruits descriptor system.
%U http://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2019.03.009