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Hybrid inviability and weakness in certain indica rice crosses



Hybrid inviability and weakness in certain indica rice crosses



Agricultural Research Journal of Kerala 18(1): 8-13



Reciprocal crosses were made, in all combinations, between the varieties PTB7 and PTB10, from Kerala, and Co29, from Tamil Nadu. All crosses involving PTB7 gave weak or inviable plants in the F1 but normal plants in the F2, while crosses between PTB10 and Co29 gave normal plants in both F1 and F2, indicating the interaction of two complementary dominant lethal genes: one from PTB7 and one common to PTB10 and Co29.

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Accession: 000903915

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