Summary
The purpose of this study was to determine at what stage of seedling development the flowering attributes in winterhardy R. rugosa hybrids could be assessed and if these attributes could be improved through breeding. The analysis of flowering was based on the duration of the flowering period and on amount of flowers produced.
Most seedlings from rugosa hybrids could be assessed at an age of 3 years. The duration of the flowering period and flower productivity were not correlated. Several seedlings were improved in both attributes over the longer flowering and more floriferous parent.
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Svejda, F. Breeding for improvement of flowering attributes of winterhardy Rosa rugosa hybrids. Euphytica 26, 697–701 (1977). https://doi.org/10.1007/BF00021694
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DOI: https://doi.org/10.1007/BF00021694