| 木质部溶质分析法测量豆科植物的生物固氮 |
| |
| 引用本文： | 牛辰. 木质部溶质分析法测量豆科植物的生物固氮[J]. 北京林业大学学报, 1991, 13(4): 116-120 |
| |
| 作者姓名： | 牛辰 |
| |
| 作者单位： | 北京林业大学林业资源学院 |
| |
| 摘 要： | 固氮植物与未长根瘤的豆科植物所同化氮素的运输形式有所不同,许多豆科植物所固定氮素是以酰脲或酰胺的形式在木质部中运输的。测定一些豆科植物木质部液汁中酰脲的相对含量,则可以估测出该植物的固氮能力。该法县有取样方便、测量简单,对某些植物可以做到非破坏性测量等优点。
|
| 关 键 词： | 木质部溶质 豆科植物 生物固氮 |
X_ylem-Solute Methods for Measuring Symbiotic N_2 Fixation by Nodulated Legumes |
| |
| Niu Chen. X_ylem-Solute Methods for Measuring Symbiotic N_2 Fixation by Nodulated Legumes[J]. Journal of Beijing Forestry University, 1991, 13(4): 116-120 |
| |
| Authors: | Niu Chen |
| |
| Abstract: | There are well established differences in xylem N-solute composition between fully symbiotic plants and non-nodulated plants which are totally dependent upon soil N. Many legumes transport the bulk of their fixed N from their nodules in the form of the ureides and the amides. The relative abundance of ureides in field-collected samples has been of value in measuring the N_2 fixing status of a number of legumes. Technically the field-sampling of xylem contents and the analysis of N-component are simple, with minimal damage to some plants. |
| |
| Keywords: | xylem-solute legumes symbiotic N_2 fixation |
| 本文献已被 CNKI 维普 等数据库收录！ |
