In this paper,47 Acacia melanoxylon R.Br.families in Luoxi Stateowned Forest Farm in Fujian Province were used as ma-terials to analyze the variation of their growth traits.The variation coefficient of each trait were19.38%-87.39%.The coefficient of vari-ation of the number of branches was the largest,and the coefficient of variation of tree height was the smallest.47 inter-family lines were rich in variation.From variance analysis,there were significant differences in sub-branch height,number of branches and trunk straight-ness(p<0.001).It was preliminarily concluded that No.3,No.15,No.22,No.39,No.40 and No.46 had strong adaptability,and No.6,No.9 and No.11 dry type performed best.The research results lay a foundation for the promotion of Acacia melanoxylon R.Br.in Fujian Province.
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