Analyses and Superiortrees Selection of Juglans regia in Zigui,Hubei
In order to select the best local Juglans regia superior trees in Zigui,based on the preliminary selection of 36 J.regia strains through field investigation in Zigui,the fruit quality was analyzed and evaluated using single item compari-son of physical and chemical properties and principal component analysis methods.The results showed that ZG08 had the highest single fruit weight,reaching 21.62 g;The highest soluble protein content of ZG35 is 90.22 mg·g-1;The kernel yield of ZG10 and ZG03 is as high as 58.47％and 57.81％,respectively;The crude fat content of ZG09 and ZG12 is as high as 82.83％and 80.17％,respectively;The top ten superior plants with scores evaluated through principal component analysis of 36 primary selected ones are ZG33,ZG09,ZG04,ZG05,ZG36,ZG31,ZG08,ZG10,ZG35,and ZG18.Prelimi-nary conclusions can be drawn:the optimal plant for J.regia oil processing is ZG09,the optimal plant for J.regia kernel processing is ZG10,the optimal plant for dry fruit sales is ZG08,and the optimal plant for comprehensive use is ZG33.The research conclusion provides a scientific reference for the comprehensive evaluation of the quality of J.regia nuts and for the targeted breeding and classification management of walnuts.
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