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Influence of differences in Ppd genes on agronomic indicators of soft winter wheat

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Abstract

The dominant alleles of the Ppd genes tend to reduce the length of the time to heading, decrease winter hardiness and frost resistance at the end of winter, and also promote a significant growth in yield and growth in individual components of the yield. In terms of the degree of reduction of winter hardiness and frost resistance in years with severe winters and the increase in the yield in years with mild wintering conditions, the dominant alleles may be arranged in the following sequence: Ppd-Ala — Ppd-Bla — Ppd-Dla. In tall-growing genotypes the effects of the Ppd genes are directed towards reducing the height of the plant, while in intermediate-height genotypes, towards increasing the plant height.

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Original Russian Text © V.I. Fayt, V.R. Fedorova, 2007, published in Tsitologiya i Genetika, 2007, Vol. 41, No. 6, pp. 26–33.

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Fayt, V.I., Fedorova, V.R. Influence of differences in Ppd genes on agronomic indicators of soft winter wheat. Cytol. Genet. 41, 350–356 (2007). https://doi.org/10.3103/S0095452707060047

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  • DOI: https://doi.org/10.3103/S0095452707060047

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