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Allopolyploid of tetraploid phaseolus species × p. calcaratus cross

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Biologia Plantarum

Abstract

Allopolyploids were raised by oolchicine treatment of vegetative buds in the triploid hybrid of tetraploidPhaseolus species xP. calcaratus cross. They had 70 per cent pollen fertility and produced many viable seeds. The average chromosome configuration per cell at MI in them was 1.56IV + 0.01m + 29.30II + l.llr. It has been concluded that the increased fertility in allopolyploids was due to more regular meiosis and the low frequency of quadrivalents indicated the occurrence of preferential pairing.

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Authors and Affiliations

  1. Department of Genetics and Plant Breeding, Bidhan Chandra Krishi Viswa Vidyalaya, Kalyani, 741235, Nadia, West Bengal, India

    M. R. Biswas & S. Dana

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  1. M. R. Biswas
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  2. S. Dana
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Biswas, M.R., Dana, S. Allopolyploid of tetraploid phaseolus species × p. calcaratus cross. Biol Plant 18, 335–338 (1976). https://doi.org/10.1007/BF02922458

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  • DOI: https://doi.org/10.1007/BF02922458

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