INFLUENCE OF EXUDATES OF AMMONIUM-RESISTANT N_2 -FIXING BACTERIA ON THE GROWTH OF RICE SEEDLING

VernacularTitle:耐氨固氮菌分泌物对水稻秧苗生长的影响
Author: Ming-Qi QIU ; Qiu-Yan LU ; Hong-Hui ZHU ; Xiao-Ying QIU ; Yuan-Sheng QIU ;
Publication Type:Journal Article
Keywords: Ammonium-resistant N2-fixing Bacteria, Plant growth promoting substance
From: Microbiology 1992;0(04):-
CountryChina
Language:Chinese
Abstract: By using cup culture, influence of different strains (ammonium-resistant N2-fixing type, wild type, none N2-fixing type) of Klebsiella oxytoca on the growth of rice seedling was compared. It was discovered that ammonium-resistant N2 -fixing bacteria could excrete some plant growth promoting substance, which could be adsorbed by cation resin. It' s activity wouldn't be affected at 80℃. At optimal concentration, the weight of rice root and seedling were increased by