油茶无性系及自然林选优调查分析

Investigation and analysis on Camellia oleifera from elite clones and natural stands

在江西省6个县进行油茶无性系及自然林选优调查分析,结果表明,长林、赣无、赣州油系列无性系优树整体表现出较好的经济性状,主要表现为鲜果含油率、平均冠幅产果量及产油量较高,高产优树较多,自然林优树整体表现低于无性系优树,但存在一部分表现高产的优树,无性系优树间、不同地区自然林优树间、同一地区自然林优树间经济性状差异较大,这为油茶选优工作提供了参考依据和空间。今后油茶选优宜重点从现行推广的无性系中进行优中选优,结合在自然林中进行一定的选择,以达到节约成本、提高效率的目标。

Investigation and analysis on Camellia oleifera from clones and natural stands in six counties of Jiangxi province. The results showed that the plus trees of Changlin, Ganwu, Ganzhouyou series clones indicated better economic traits, mainly for the higher fresh fruit oil content, higher average crown fruit production and oil production, in addition, more high yielding plus trees . The whole expression of plus tree from natural stands was worse than that of plus tree from clones species, but there was a part of plus trees which showed high yielding, There was great difference of economic traits among plus trees from clones, from natural stands in different regions, from natural stands in same region, which provide reference and space for elite selection. In the future, elite selection of C. oleifera should focus on the selection those from the current promotion clones, combined with certain selection in the natural forest, in order to achieve improving efficiency.