INHERITANCE OF NITRATE REDUCTASE ACTIVITY IN Zea mays L*

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RESUMO

Since the F1 hybrid (B14 × Oh43) had been shown to have a higher (heterotic) level of nitrate reductase activity than either inbred parent (B14 or Oh43), studies were undertaken to determine the mode of inheritance. Standard methods for determining Mendelian inheritance were used to study segregation for level of nitrate reductase activity of individual plants. The genetic material used was the inbreds B14 and Oh43, F1, F1 backcrossed to both parents, F2, F3, and F4 generations of the cross B14 × Oh43. The plant material was grown in the field and in growth chambers.

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