Journal of Genetics

, 50:67 | Cite as

The genetics of blackarm resistance

VIII.Gossypium barbadense
  • R. L. Knight


Two forms of resistance occur inGossypium barbadense: weak resistance, due to leaf hardening, is found in the Sea Islands, and strong resistance, due to the geneB 5 fortified by minor genes, occurs in the perennial variety Grenadines White Pollen.B 5 is variable in expression but, in general, the homozygotes show stronger resistance than the heterozygotes.B 5 is additive in conjunction withB 1, B2, B3 andB 4 respectively.


Resistance Gene Minor Gene Backcross Progeny Major Resistance Gene Leaf Hardening 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Indian Academy of Sciences 1950

Authors and Affiliations

  • R. L. Knight
    • 1
  1. 1.Senior Economic GeneticistEmpire Cotton Growing Corporation and Sudan GovernmentSudan

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