PRELIMINARY ASSESSMENT OF SMALL FABA BEANS GROWN IN MANITOBA

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Abstract
The growth, nitrogen content and nitrogenase activity of Diana and Ackerperle cultivars of faba beans (Vicia faba L. var. minor) were studied in the greenhouse and field. All inoculated seeds produced well nodulated plants. The total nitrogen fixed was 840 mg/plant in the second greenhouse experiment. The faba bean continued to fix nitrogen after pod formation. Application of nitrogen suppressed nitrogenase activity. Where no inoculum was applied to farmers’ fields in Manitoba, nodulation of faba beans was spotty, plant nitrogen was lower, and ethylene production was less than with plants from fields where inoculum was applied.

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