湖北林业科技

In order to compare different provenances and families growth effects at early stage,3 Manglietia conifera provenances including 45 families were taken as materials for afforestation test.Tree growth(height and diameter at breast height(DBH))as well as survival rate were observed for 3 years,and the multiple comparison analysis of the growth and survival rates of different provenances and families were carried out.The results showed the average tree height of 3 - year - old was about 3.5 m,the DBH was about 5.50 cm,and the average of survival rate was about 80%. There was no significant difference between provenances in tree height and survival rate.However,the difference in DBH was significant between provenances.There was significant difference between families in tree height,DBH and survival rate.Provenance No.3 grew better than other povenances,family such as No.18,No.14,No.17,No.21,No. 25,No.39,No.43,and No.44 grew better than others.