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On the cause of seed failure or seed setting in 4n cultivatedcorchorus capsularis L.×2n cultivatedC. capsularis and 4n cultivatedC. olitorius L. ×2n cultivatedC. olitorius and their reciprocals through cytogenetical studies

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Summary

  1. 1.

    Pods set in both types of crosses (2n C.G.×4n C.G. and 4n C.G.×2n C.G.). Five pods are found to reach up to maturity in case of 2n C.G.×4n C.G. Pods set in case of the second cross shed within a week.

  2. 2.

    In 2n D 154×4n D 154 and its reciprocal crosses no pod sets at all.

  3. 3.

    The cross pods (2n C.G.×4n C.G.) are shorter than those of both parents.

  4. 4.

    In 2n C.G.×4n C.G. and its reciprocals, the egg is found to be fertilized within 24 hours. But in 2n D 154×4n D 154 and its reciprocals, pollen tube does not reach the ovule in one day.

  5. 5.

    Complete fusion of the egg and the sperm in case of 2n C.G.×4n C.G. and its reciprocals is not observed even in two days. But in case of 2n D 154×4n D154 and its reciprocals no fertilization is observed.

  6. 6.

    Degeneration of ovules starts on the 3rd day in case of 4n C.G.×2n C.G. In 2n D 154×4n D 154 degeneration starts on the 2nd day and in its reciprocal degenerating ovules are marked on the 3rd day.

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Authors and Affiliations

  1. Department of Agriculture, Calcutta University, Calcutta, India

    R. M. Datta & S. N. Banerji

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  1. R. M. Datta
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  2. S. N. Banerji
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Datta, R.M., Banerji, S.N. On the cause of seed failure or seed setting in 4n cultivatedcorchorus capsularis L.×2n cultivatedC. capsularis and 4n cultivatedC. olitorius L. ×2n cultivatedC. olitorius and their reciprocals through cytogenetical studies. Genetica 31, 385–409 (1960). https://doi.org/10.1007/BF01984437

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