Pollen sterility induced by ethrel and its utilization in hybridization of wheat |
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| Authors: | Ladislav Dotlacil Marie Apltauerová |
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| Institution: | (1) Institute of Genetics and Plant Breeding, Praha-Ruzyn , Czechoslovakia |
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| Abstract: | Summary In 1974 and 1975 gametocidal effects of Ethrel were investigated under field conditions in the spring wheat cv. Zlatka. In experimental plants grain setting per spikelet and ear as well as ability to be cross-pollinated were ascertained.As compared with the control, treated variants achieved more than 90% sterility. Female fertility was not affected and cross-pollination was possible. Genetical check showed that the best variants, when cross-pollinated, produced 50–55% hybrids; grain setting, however, was brought down by more than 37%. As a result of Ethrel treatment haulm length was reduced and the vegetation period was somewhat prolonged. |
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| Keywords: | Triticum aestivum hybrid wheat chemical emasculation gametocide cross-pollination hybrid seed production Ethrel |
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