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Pollen sterility induced by ethrel and its utilization in hybridization of wheat

✍ Scribed by Ladislav Dotlacil; Marie Apltauerová

Publisher
Springer
Year
1978
Tongue
English
Weight
416 KB
Volume
27
Category
Article
ISSN
0014-2336

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✦ Synopsis

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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✍ J. G. Th. Hermsen 📂 Article 📅 1965 🏛 Springer 🌐 English ⚖ 201 KB

The author suggests that in nature cytoplasms may occur which can restore fertility in male sterile lines in which male sterility is based on one recessive gene ms. If indeed such a "fertilizing" cytoplasm should be found a male sterile (S) ms ms-line could be increased using the male fertile counte