The Analysis on Genetic Distance of 25 Geographical Provenances of Acacia mearnsii

This paper calculated with Lin method the standard genetic distance of 25 geographical provenances of Acacia mearnsii from abroad and at home, and divided them into 5 growth groups through O shortest distance cluster and drew the systemetic cluster pedigree figures. The genetic differences are small in the same group and great between various groups. The geographical provenances of high growth in various groups should selected in Nanping District, for example, 9, 12, C3, B, 18, 16, 3, 17, 4, 14, 13, 10, C4, etc.