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On first generation hybrid maize for grain production, using advanced hybrid generations



On first generation hybrid maize for grain production, using advanced hybrid generations



Ikushugaku Zasshi/Jap. J. Breeding, 2: 142-46



The period between planting and inflorescence production was studied in the inbreds B 8, A 151, WF 9, M 14, and various F1, F2 and back-cross combinations. The vegetative cycle was shortest in the F1 hybrids, whence it is concluded that F2 grain may not ripen naturally in northern Japan. Variance in silking date did not diner for the F1 and F2 hybrids. In the case of tasseling date, the variance of the F2hybrids was greater than in the F1 forms.

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