7、If the original host plant was replaced by others, both these Frankia 'infective ability and nitrogenase activity in new symbiotic system were lower.
2、Soil drought reduced moisture content and nitrogenase activity of nodules.
6、The level of nitrogenase activity was correlated reciprocally with the content of cell phycocyanin and the light intensity.
3、The photosynthetic rate and excretory ability affected the nitrogenase activity in the rhizosphere.
9、There were many good strains which had such potential such as X4 and X1 in Xi 'an only in consideration of nitrogenase activity. But few strains with such ability were isolated from Lanzhou.
8、If low nitrate concentration was applied to Jilin 20, its nodule nitrogenase activity and ureide content were increased in early growth period, but were inhibited in later growth period.
1、The NRA was not directly correlated with nitrogenase activity.
5、Stable and high efficiency micro-plant interaction is essential to the optimal nitrogenase activity of root-associated nitrogen fixation bacteria.
4、Studies on the method of controlling enzymatic reaction time of acetylene reduction in determining associative nitrogenase activity of associative system
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