【摘要】 本文对引自国内外的25个黑荆树地理种源,用Lin氏法计算标准遗传距离,欧氏最短距离法聚类,绘制了系统聚类谱系图。将25个种源划分为五个明显的生长类群。同一类群内各种源间遗传差异小,不同类群间的种源遗传差异大。在福建南平地区应选择分属于不同类群内生长量大的种源,如9、12、C₃、B、18、16、3、17、4、14、13、10、C₄等种源。更多还原

【Abstract】 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.更多还原