超高产橡胶芽接树叶片矿质养分特性研究  

Study on mineral elements characteristics of leaves of supper-high-yield rubber budding tree

作　　者：刘子凡[1,2] 王军[1,2] 林位夫[1] 

机构地区：[1]海南大学农学院,海南海口570228 [2]中国热带农业科学院橡胶研究所,海南儋州571737

出　　处：《广东农业科学》2012年第1期40-41,50,共3页Guangdong Agricultural Sciences

基　　金：中国热带农业科学院基本科研业务费项目;海南省自然科学基金(30815);海南大学科研启动专项(kyqd1042)

摘　　要：对云南省西双版纳地区出现的极少数超高产橡胶芽接树(砧木为无选择种子砧木,接穗为PB86)的叶片养分特性等进行研究。结果表明:与我国现有指标比较,超高产橡胶芽接树和普通橡胶芽接树叶片的全N、全P、全Mg、N/K和Mg/P的比值均表现为缺乏或极缺乏,而全钙和K/P表现丰富。这一结果与我国现行的橡胶树叶片养分诊断指标出入颇大。同时,超高产橡胶芽接树的叶片全N、全P、N/P和N/K比值均显著或极显著低于对照树,而叶片全K、K/P和K/Ca比值却显著或极显著地高于对照树。原因可能是由于超高产芽接树在矿质养分吸收、运转和分配机制上不同于普通芽接树。Nutrient characteristics of leaves of high-yielding rubber budding tree（PB86） was discussed,which was discovered in Xishuangbanna region of Yunnan province.The results showed that the total nitrogen,the total phosphorus,the total magnesium,the ratio of N/K and Mg/P were shortage,while the total phosphorus,the total calcium and the ratio of K/P were abundant in both of the high-yield budding tree and the general budding tree.There is an obvious discrepancy between this result and the nutrition diagnosis indexes of rubber tree leaves.And that the total nitrogen,the total phosphorus,the ratio of N/P and N/K of the leave in the high-yield budding tree were significantly lower than those of the general budding trees,while the potassium,the ratio of K/P and K/Ca were significantly higher than those of the general budding trees.This results could due to the reason that nutrients absorption,transport and distribution mechanisms of the high-yielding rubber budding tree differ from those of normal rubber budding trees.

关 键 词：橡胶树 高产 叶片养分 

分 类 号：Q945.18[生物学—植物学]