Indian Society of Genetics & Plant Breeding

GYTOGEN ETICAL STUDIES IN PHASEOLUS. I.AUTOTETRAPLOID PHASEOLUS AUREUS A TETRAPLOID SPECIES OF PHASEOLUS AND THE BAC|K-CROSSES

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INTEREST ln the origin and relationship of the highly fertile and the only known tetraploid species of Phase0lus  (Dana,  1964)  was  stimulated  by  the  possibility of its utility in breeding of tropical  Phaseolus  species.  Intensive  pachytene  studies were undertaken on  this species  and  the  results  with special reference to its allotetraploid nature and origin are being reported elsewhere (Krishnan and  De, in press). Concurrently, hybridization of this species with the two econ.omically important diploid species, Phaseolus aureus and P. mungo, were undertaken to elucidate the genomic homology, if any.

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Year: 1968
Volume: 28
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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