The NRA was not directly correlated with nitrogenase activity.
硝酸还原酶活性和根瘤固氮活性之间没有直接关系。
Soil drought reduced moisture content and nitrogenase activity of nodules.
土壤干旱降低田菁根瘤的含水量和固氮活性。
Soil drought reduced moisture content and nitrogenase activity of nodules.
田 菁根瘤的含水量和固氮活性。
The photosynthetic rate and excretory ability affected the nitrogenase activity in the rhizosphere.
水稻的光合作用及报分泌能力影响根际固氮活性。
Deficiency or excess of water in the soil could cause the tremendous decline of the nitrogenase activity.
土壤水分过多或缺乏，都导致固氮活性极大降低。
The level of nitrogenase activity was correlated reciprocally with the content of cell phycocyanin and the light intensity.
酶活的高低与藻蓝素含量和光照强度成反相关。
Stable and high efficiency micro-plant interaction is essential to the optimal nitrogenase activity of root-associated nitrogen fixation bacteria.
联合固氮体系的建立是联合固氮菌发挥高效生物固氮活性的关键要素之一。
If the original host plant was replaced by others, both these Frankia 'infective ability and nitrogenase activity in new symbiotic system were lower.
供试菌随寄主植物的改变，侵染能力及所建立的共生系统固氮活性有所降低。
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.
低浓度硝酸盐在生育前期对吉林20号根瘤固氮酶活性有促进作用，酰脲含量增加，在生育后期有抑制作用。
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.
单从固氮酶活性来看，西安地区草地有开发潜力的优良菌株相对较多，如X4和X1，而兰州地区的相对较少。
Chromium treatment significantly decreased nodule Numbers, nodule fresh weight, leghemoglobin content and nitrogenase (acetylene reduction) activity per plant or per gram of nodules.
铬还使单株固氮酶活性(乙炔还原法测定)显著降低，用高浓度铬处理者克瘤固氮活性也显著降低。
Chromium treatment significantly decreased nodule Numbers, nodule fresh weight, leghemoglobin content and nitrogenase (acetylene reduction) activity per plant or per gram of nodules.
铬还使单株固氮酶活性(乙炔还原法测定)显著降低，用高浓度铬处理者克瘤固氮活性也显著降低。
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