摘要
以与橡胶树排胶有关的排胶初速率、乳管堵塞指数和树皮组织切片的乙烯释放速率等生理参数,以及与产胶有关的胶乳蔗糖、硫醇、蛋白质和干胶含量、碱性无机焦磷酸酶和过氧化物酶活性等生理参数,探讨稀土对橡胶树产量的影响,试验结果再次表明,稀土不具有明显地提高胶树产胶量的生理基础,也没有增加产胶量的效应。本试验还探讨了稀土增加橡胶树产量的可能性和其防治死皮的效应。
An attempt was Initiated to study thè effects of rare earth on rubber yield of Hevea brasiliensis by analysing physiological parameters associated with latex flow and its regeneration:initial rate of latex flow,plugging index,ethylene evolution of bark tissue,and contents of dry rubber,sucrose,thiols,ascorbic acid,protein as well as activities of alkaline inorganic pyrophosphatase and peroxidase.It is confirmed in the experiment that the rare earth did not possess a physiological foundation for marked increase in rubber output.The latex yield,in fact,did not increase by rare earth treatment.Possibilities of the increase of rubber yield,and prevention and cure of bark dryness by rare earth are discussed.
出处
《热带作物学报》
CSCD
1993年第1期21-30,共10页
Chinese Journal of Tropical Crops
关键词
稀土
产胶量
死皮
橡胶树
胶乳
Hevea brasiliensis
latex
rubber yield
rare earth
bark dryness
