银杏吸收根营养元素吸收及分配规律的能谱分析

Studies of Energy Spectrum Analysis on the Absorption and Distributive Laws of Nutrient Elements in Sucking Roots of Ginkgo biloba L.

能谱分析银杏吸收根组织对营养元素的吸收规律 ,结果表明 :1.根对营养元素的吸收有两次高峰 ,第一次出现在营养液培养处理后的 4～ 6h左右 ,第二次出现在 10～ 2 4h左右 ;2 .营养元素的吸收规律和在银杏根不同组织分布与培养液中元素种类、离子的类型和银杏根系对营养元素需求特性有关 ;3.银杏根系中K、Na元素积累量较高 ,显示银杏是一种代谢强度大、耐盐的植物。

Based on energy spectrum analysis on absorbing laws to nutrient elements for tissue of sucking roots, the results were as follows:1.It showed two peaks which appeared at the 4-6 hour and the 10-24 hour after treatment by nutrient liquid respectively for root to absorb nutrient elements;2.The absorption laws and distribution of nutrient elements in different root tissues of Ginkgo were relative to the types of element and ion in culture liquid,and to characters of requirement of root system to nutrient element;3.There were more accumulate of potassium and sodium in root system of Ginkgo ,which showed that Ginkgo biloba was a plant of strong metabolism and salt endurance.