内生固氮菌在水稻上的应用效果研究初报  

Preliminary invocation effects of Endophytic diazotroph on rice

作　　者：赵记军[1] 徐培智[1] 解开治[2] 严超[1] 谭志远[3] 

机构地区：[1]甘肃农业大学资源与环境学院,甘肃兰州730070 [2]广东省农科院土壤肥料研究所/广东省养分循环利用与耕地保育重点实验室,广东广州510640 [3]华南农业大学农学院/广东省植物分子育种重点实验室,广东广州510642

出　　处：《广东农业科学》2008年第1期35-38,共4页Guangdong Agricultural Sciences

基　　金：广东省农业攻关项目(2007B020711004)

摘　　要：采用盆栽和田间小区试验,探讨了水稻接种2种内生固氮菌对其生长发育的影响,结果表明:水稻接种内生固氮菌后表现出固氮特性,促进了水稻的分蘖,提高了水稻产量,且Whr50菌株的总体效果要优于Hwo52菌株;与常规栽培处理相比,水稻接种内生固氮菌后根系活力较强,特别是表现在对根系吸收活跃表面积的影响上;而在水稻生长后期,2种固氮菌的固氮能力增强,造成水稻植株出现明显贪青现象。Pot trails and field experiments were conducted to study the effects of two endophytic diazotroph inoculated on flee. The results showed that endophytic diazotroph demonstrated nitrogen fixation ability, promotion of the rice tillers, and increase of rice yield. The inoculation effective of strain Whr50 showed better than that of strain Hwo52. Compared with the control, inoculated rice has strong root activity, especillay impacted the root active absorbing surface area. In the late period of the rice growth, two endophytic diazotroph showed strong nitrogen-fixing ability, causing the rice over-green growth, and the reason of this phenomenon needs further study.

关 键 词：内生固氮菌 水稻 应用 

分 类 号：S511[农业科学—作物学] S144.5