ISSN:
1573-5036
Keywords:
N2-fixation
;
Nodulation
;
Rhizobium
;
Soybean
;
Symbiosis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary The effect of mineral nitrogen on establishment and activity of symbioses between soybean and several strains ofRhizobium japonicum and on the establishment of nodules ofR. japonicum isolated from nodules of field crops is studied. All strains were highly susceptible to the effects of 200 ppm NO3−N on the establishment of symbiosis; 50 ppm NO3−N had little effect. Response of symbioses establishhed in the absence of mineral N to short term exposure to nitrate or ammonium varied significantly between strains. Nodule isolates from soybean crops growing in nitrifying soil were no less susceptible to the inhibitory effects of mineral N on nodule formation than a laboratory culture of the commercial inoculant strain.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02183813
Permalink
