Abstract

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Title:: Principal Component Analysis for Main Characteristics of Ornamental Crabapples and Selection of Superior Strains

Author(s):: BAO Dong′e1; LIU Zunchun1; LIU Keshuai2; HU Huiling1; MIAO Weidong1; (1.Department of Mathematics，Henan Institute of Science and Technology,Xinxiang,Henan 453003；2.Henan Yuenong Industrial Limited Company,Xinxiang,Henan 453003)

Keywords:: ornamental crabapples; principal component analysis; selection of superior strains

Abstract:: Fortytwo alternative superior individuals in ornamental crabapple were used as materials,twentyfive main characteristics of each individual were studied with the method of principal component analysis,in order to provide scientific basis for the ornamental crabapple breeding selection on superior characteristics.The results showed that there was great genetic variation in 25 characteristics,and the variation coefficient was between 13.2% and 125.1%.The accumulated variance contribution rate of seven principal components reached 80.396%,which could indicate the growth,yield,leaf characteristics,quality,branch characteristics,ornamental and reproduction of ornamental crabapple.Based on the main ranking from the comprehensive score of each strain,2 superior strains with the most excellent comprehensive traits were S24 and S36,respectively.