Dinitrogen fixation — acetylene reduction in soybeans during the reproductive growth period |
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| Authors: | V Škrdleta V Našinec Alena Hyndráková Marie Němcová |
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| Institution: | 1. Institute of Experimental Botany, Czechoslovak Academy of Sciences, Ke dvoru 16, 166 30, Praha 6-Vokovice, Czechoslovakia
2. Research Institutes of Crop Production, Drnovská 507, 161 06, Praha 6-Ruzyně, Czechoslovakia
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| Abstract: | In a greenhouse pot oulture experiment, a dinitrogen (N2) fixing — acetylene reduction activity profile was examined in detail as affected by plant age. Total μmol C2H4 root-1 h-1] and speoifio nitrogenase nmol C2H4 (mg nodule d. wt.)-1 min-1] activities peaked 63 days after sowing, near the end of flowering. The nitrogenase activities, nodule dry matter accumulation, top dry matter accumulation, and total nitrogen yield in the top dry matter were found to be highly correlated. |
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