Study on Trial of Introduction and the Selection of Provenance and Family for Loblolly Pine
Cai E Wu · Fujian linxueyuan xuebao · 2002
Compared with slash pine and mason pine,the trial of introduction of 8 provenances and 19 families from the first generation seed orchard for loblolly pine was conducted at yangkou forest farm The result showed that the growth effect of loblolly pine was the best There were significant differences in height?breast height diameter?crown diameter and volume among provenances and families The genetic parameter and the correlation analysis indicated that there were great correlation between traits,the genetic variation coefficient was large and the heritability was quite high Through synthesis evaluation and cluster analysis on the value of the principal component,the best provenance was,four better provenances and three best fast growth families,seven better fast growth families were chosen,the genetic gains of volum of this two sorts of fine families were 19 02% and 6 86% respectively