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Crop Science Abstract -

Interspecific Hybridization in the Genus Phaseolus1


This article in CS

  1. Vol. 6 No. 1, p. 59-60
    Received: Aug 13, 1965

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  1. Salih Aziz Al-Yasiri and
  2. D. P. Coyne2



Seven species of Phaseolus, namely P. Calcaratus, P. mungo, P. angularis, P. lunatus, P. acutifolius, and P. vulgaris, were interpolinated in all possible combinations. On the basis of pod development, three types of compatibility are suggested: Compatible crosses that yield mature hybrid seeds; partially compatible crosses where the pods collapse in the early stages of development: incompatible crosses that fail to develop pods. A compatible cross was P. vulgarisP. coccineus. Partially compatible crosses were: P. vulgarisP. acutifolius, P. acutifoliusP. coccineus, P. coccineusP. acutifolius, P. vulgarisP. mungo, P. mungoP. calcaratus, P. vulgarisP. lunatus, P. angularisP. acutifolius, P. angularisP. vulgaris, P. mungoP. vulgaris, P. angularisP. calcaratus, P. vulgarisP. calcaratus, and P. angularisP. mungo. The remaining combinations of species crosses were incompatible.

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