稀土微肥对桃叶片光合生理特性的影响

Effects of Rare Earth Micro Fertilizer on Photosynthetic Physiological Characters of the Peach Tree

本试验以二年生桃树为试材 ,研究了稀土微肥对叶绿素、蛋白质含量和光合速率的影响。结果表明 ,低浓度稀土可显著提高桃功能叶叶绿素和蛋白质的含量 ,延缓桃衰老叶叶绿素的降解 ,从而提高桃叶片的光合效率 ;高浓度稀土对桃叶片叶绿素、蛋白质含量和光合效率的提高具有不利的影响 ;稀土对叶绿素。

The influences of rare earth micro fertilizer on leaf photosynthetic rate, the content of chlorophyll and protein were studied respectively in peach ( Prunus persica ). The results showed that the content of chlorophyll and protein in functional leaves were notably increased by low concentration applying of rare earth, and the degrade of chlorophyll in decrepit leaves were mitigated which are helpful to improve the photosynthetic rate. However, high concentration applying of rare earth has reverse effect. The finding also revealed the effect of rare earth would illustrate several days late.