Section 1
Chapter 462

Pollen sterility and the possibility of making use of heterosis in wheat - a study of the genetic system of cytoplasmic male sterility

Apltauerova, M.

Vestnik Ceskoslovenske Akademie Zemedelske 23: 108


Accession: 000461830

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As sources of cytoplasmic male sterility, Triticum timopheevii, T. timococcum and T. timonovum were distinguished from sources such as Aegilops ovata and T. zhukovskyi by their lack of serious adverse effects on the bread-wheat genotype. The genetic effects of T. timopheevii on grain protein content in spring wheats were shown to be under nuclear rather than cytoplasmic control. The Rf genes were the most effective agents of fertility restoration for T. timopheevii cytoplasm. Eastern European varieties were the largest group among those found capable of restoring fertility. Several which are high yielding, short and resistant to Puccinia striiformis constitute suitable initial material for the breeding of restorer lines.

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