【摘要】 对黧蒴栲的种子采集、处理,种子大小、千粒重、优良度及田间育苗方法进行了试验,对其苗木生物量分布及苗高生长规律进行了初步研究。结果表明:7月中旬至9月下旬为苗高生长高峰期,以8月生长最快,期间要加强肥水管理,促进苗木生长;1年生苗高平均63cm,平均地径0.60cm;大于5cmI级侧根数平均11条,根系发达,可出圃造林,但地下部分生物量较小,宜摘除部分叶子后造林以利于提高成活率。更多还原

【Abstract】 Castanopsis fissa seeds′ selecting,treating,size,kernel weight,elite degree and field seedling raising is tested.The biomass distributions and the growth rhythms of its seedlings are studied.The results show that its seedlings′ peak of height growth is from the middle ten days of July to the last ten days of September with the fastest growth in August.Within the peak period of height growth,the management of water and fertilizer must be enhanced to improve the growth of seedlings.The mean height of its yearlings reaches 63cm and the mean ground diameter reaches 0.60cm.The roots of the yearlings are strong with about 11 primary lateral roots longer than 5cm on the average.The yearlings can leave nursery gardens to be planted.But their biomass under ground is small so that some of leaves should be picked to help increase their survival rate.更多还原