In the paper by multiple regression analysis, the characters of regression significance to yield quantity of resin were shown, and also regression equation was made. The results showed those characters such as bark thick, sever width, crown, sever ages twig angle, tree ages, diameter and twig thick were important factors to influence the yield quantity of resin for masson pine (Pious massoniana Lamb. )variance ananlysis of multiple regression equation is of significance, and the complex correlated coefficie...
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