广西植物2016，Vol.36Issue(8)：980-985,6.DOI:10.11931/guihaia.gxzw201508001
油茶叶片营养元素、叶脉密度及生理指标随树龄变化规律及其与产量的相关性
Changs laws of nutrient elements, veins density, physiological index in Camellia oleifera leaves with different tree ages and their correlation with yield
摘要
Abstract
In the present research, the nutrient element, veins density and physiological index in Camellia oleifera leav-es of different tree ages were compared to understand their change laws with tree age and the responding effects on yield. The results were as follows:(1) There were significant differences in the content of metal elements or rare earth elements among different ages;almost all elements showed the regularity of increasing first then decreasing with tree age while they reached the maximum content at the different ages. ( 2) Veins distributed in a network pattern and could be divided into three categories of great, medium and fine vein by diameter; density of great and medium vein did not change significantly while density of fine vein showed a change law of increasing first then decreasing with tree age. (3) Physiological indexes such as the content of chlorophyll, MDA, soluble sugar and soluble protein and the POD activity showed unique change laws with three ages. (4) Chlorophyll content, POD activity, total content of rare earth element and density of fine vein showed significant positive correlation with the yield ( P<0.05, or P<0.01) . This study will pro-vide the reference for its cultivation and management, the parameters of nutrition, physiological and structural of the leaves can be used for tracking plant state and predicting yield.关键词
树龄/营养元素/叶脉密度/生理指标/产量/油茶叶片Key words
tree age/nutrient elements/vein density/physiological index/yield/Camellia oleifera leaves分类
农业科技引用本文复制引用
闫荣玲,廖阳,黄玉钱,殷小林,徐文,许路路,王静..油茶叶片营养元素、叶脉密度及生理指标随树龄变化规律及其与产量的相关性[J].广西植物,2016,36(8):980-985,6.基金项目
湖南省科技厅科研项目(2013NK4112,2014NK3133)；2014年湖南科技学院科研课题及校大学生研究性学习课题[Supported by Re-search Project of Science and Technology Department of Hunan Province(2013NK4112,2014NK3133)；Research Project and Students’ Research Learning Project of Hunan University of Science and Engineering in 2014]。 （2013NK4112,2014NK3133）
