作　　者： ; ; ; ; ; (曾建雄）; (雷松林）;

机构地区： 广东省林业科学研究院

出　　处： 《中南林业科技大学学报》 2012年第5期19-24,共6页

摘　　要： 对11年生南洋楹自由授粉家系引种试验林进行研究表明,参试家系的保存率之间存在极显著差异,变异幅度为28%～80%,生长和形质性状在家系间也有极显著差异。性状遗传相关分析显示,三个生长性状间呈高度正遗传相关,生长性状与大部分形质性状也有正遗传相关关系。聚类分析可把22个家系分成4大类,以类别I综合表现最好,其中又以家系M4、M9、P1、P4、P8最优,其生长及性质性状均表现优良,其中材积生长量为0.2364～0.3249m3,主干通直度得分2.24～2.48分,分别比CK高出15.65%～38.63%及0.36～0.4分,保存率为56%～70%,与CK及群体均值相近,此类家系可作为进一步研究的材料。 The tests on the open-pollinated families of 11-year-old Paraserianthes falcataria show that the preservation rate of 22 families were 28%-80%, and the differences were highly significant among them. There were also highly significant differences exited among families in growth and form qualities. Genetic correlation analysis suggested that there were highly positive genetic correlation among three growth qualities, and there were also positive genetic correlation among growth qualities and most stem-form qualities. According to the results of cluster analysis, the 22 families were divided into 4 categories, the families of were the best in overall performance, and the 4 families of 1st category, M4, M9, P1, P4, P8 had the best growth and form qualities compared to the other families, which average volume and the value of stem straightness were 0.2364-0.3249 m3 and 2.24-2.48, especially, and the values were 15.65%-38.63% and 0.36-0.4 higher than CK, the preservation rates were 56%-70%, which were similar to CK. So the category should be the materials of further study.

关 键 词： 南洋楹 家系 引种试验 家系选择

领　　域： [农业科学] [农业科学]