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Some Effects of Genes, Cytoplasm, and Environment on Male Sterility of Cotton ( Gossypium ) 1
Author(s) -
Meyer Vesta G.
Publication year - 1969
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1969.0011183x000900020039x
Subject(s) - sterility , biology , cytoplasmic male sterility , cytoplasm , gossypium , hybrid seed , hybrid , gossypium barbadense , fiber crop , mutant , gene , backcrossing , genetics , botany , malvaceae , stamen , pollen
Male sterility in Upland cotton ( Gossypium hirsutum L.) has been produced by mutant genes, cytoplasm from other species, environmental stress, and chemical treatment. Genetic sterilities vary in expression from complete sterility due to a single dominant gene to partial sterility due to recessive genes. The cytoplasmic‐genetic sterile strains with cytoplasm from either G. anomalum Wawra & Peyr. or G. arboreum L. vary in response to genes, cytoplasm, and the external environment. Daily maximum temperature 15 to 16 days before anthesis affects sterility more than any other aspect of the external environment. A‐lines and B‐lines have been produced for pure‐breeding sterile strains, one set for G. anomalum cytoplasm, the other for G. arboreum cytoplasm. All of the commercial strains of G. barbadense L. tested with these two sterilities produced completely fertile F 1 hybrids. The commercial cotton crop is largely self‐pollinated. The most critical problem for production of hybrid cotton appears to be finding some way to get the male‐sterile flowers pollinated.