橡胶树乳管发育与产胶量关系研究

The Relation between Development of Latex Vessel and Latex Yield of Rubber Tree

橡胶树无性系乳管列数、密度（个）和口径３个要素是衡量无性系产胶量的重要依据．乳管３个要素或２个要素的值比另一无性系的值高者，产胶量高，反之则低．高产无性系的乳胶管列数增幅大，低产无性系增幅小．无性系各分枝间乳管３要素的值差异小，各分枝均可取枝条嫁接繁殖．高产实生树各分枝之间，乳管３要素的值差异大，应选取乳管３要素的值高的分枝嫁接繁殖，才能获得高产的个体群．

The rings,density and diameter of latex vessel are important basis to measure latex yield of rubber.The unmber of rings,density or diameter in hing-yield clone are more than low-yield clone.The difference of this elements on clone branch are small,so any branch of clone can be made cion.But the difference of seedling tree are big,only branch which the elements are high can be made cion to obtain high-yield clone.