Through the multi-character correlation degree analysis of P. massoniana family, 37 families whose volume growth was hig通过马尾松家系多性状的关联度分析，评选出材积生长量高且结实性状好的家系37个，材积生长量中等且结实性状好的家系10个，材积生长量高且结实性状中等的家系7个。