摘要
本文从某些形态指标和生理指标初探稀土促进甜菜增产增糖的机理。田间调查和室内分析表明,稀土不仅能促进叶片面积的增大和叶片寿命的延长,而且能提高叶绿素的含量和增加比叶重.这些均有利于提高甜菜的光合能力.
The preliminary approch on mechanism of root yield and sugar increased with rare-earth from some morphogenic quota and physiological index in this paper. It showed that the rare-earth not only promoting increase in the leaf areas but also prolonging the life of blade,And could improve the chlorophyll content and increase leaf dry weight per unit leaf area. All this were very useful to raise the photosynthetic ability of sugarbeet.
