不同繁殖方式对油桐树体结构及产量的影响

Effect of different reproductive way on Vernicia fordii body structure and its output

研究了油桐种子直播造林、种子直播后嫁接和嫁接苗造林3种繁殖方式对油桐树体结构及产量的影响,并对油桐产量与树体结构之间的关系进行了相关分析,结果表明:不同繁殖方式对油桐树体结构和产量有影响,差异极显著,油桐丰产栽培宜采用种子直播造林;油桐产量与树高、冠高、冠幅之间具有密切的正相关,与枝下高为负相关,将树高、冠高、冠幅作为油桐优树选择的考核指标是可行的。

The influence experiment of Vernicia fordii body structure and its output by three reproduction ways were studied,which included seed direct seedling afforestation,grafting after direct seedling and grafting afforestation way.And the relationship between the V.fordii body structure and output were analyzed in the paper.The results showed that： there were obvious influences in the V.fordii body structure and output by different reproduction way,the appropriate high-yield cultivation way of V.fordii is seed direct seedling afforestation.The output of V.fordii was positive correlation with tree height,crown height and crown width,and it was negative correlation with height under branch.Taken the tree height,crown height and crown width as the examination index of superior tree selection was feasible.