用材型木麻黄无性系造林试验及增益效果分析

从福建省惠安赤湖国有防护林场收集的52份木麻黄无性系中筛选了13个表现较好的用材型无性系,通过苗木培育与造林试验,对木麻黄各无性系的性状进行了测定分析。结果表明,参试木麻黄各无性系间除枝下高外,树高、胸径、材积和冠幅差异均达到显著或极显著水平,而无性系重复间差异不明显。综合分析表明,粤703、惠86和龙7三个木麻黄无性系具有明显的增益效果,可作为用材型木麻黄优良无性系在生产中推广应用。

Afforestation Experiment of Timber-used Casuarina equisetifolia Clone and Its Gain Result

Thirteen timber-used clones with better performance were selected from 52 clones of Casuarina equisetifolia which were collected from Chihu State-owned Protection Forest Farm in Huian county in Fujian province.Through seedling cultivation and afforestation experiment,characters of each Casuarina equisetifolia clone were determined and analyzed.Result shows that: except clear bole height,differences of tree height,DBH,timber volume and crown of each Casuarina equisetifolia clone are at the significant or ver...