אסיף מאגר המחקר החקלאי

Seasonal changes in symbiotic nitrogen fixation and haemoglobin content in nodules of peanuts

Year:

1973

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Volume :

39

Co-Authors:

Schiffmann, J., Division of Legume Inoculation, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Löbel, R., Division of Legume Inoculation, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel

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Abstract:

Seasonal fluctuations of haemoglobin (Hb) concentration in nodules and the percentage of nitrogen (N) in leaflets of rhizobium-inoculated peanuts from various planting dates, were studied under field conditions. In peanuts planted in the usual season (April, May), no correlation was found between the N and Hb concentrations during the early stages of peanut growth; however, there was a very significant correlation at later periods of plant growth. With July (out-of-season) planting there was no correlation between the Hb and N concentrations at any time. The possibility of evaluating the atmospheric nitrogen (N2) fixation rate of peanut plants under field conditions by means of Hb and N determinations was studied. © 1973 Martinus Nijhoff Publishers.

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