Simultaneous selection of segregating two-row winter barley material in England and Italy |
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Authors: | G C M Sage A P Roffey A M Stanca |
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Institution: | (1) Plant Breeding Institute, Maris Lane, Trumpington, CB2 2LQ Cambridge, UK;(2) Istituto Sperimentale per la Cerealicoltura Sezione di Firoenzuola, D'Arda 2907, Via S. Protaso, 308, Italy |
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Abstract: | Summary Independent but simultaneous selection by two breeding teams of the same segregating two-row winter barley material at Cambridge, England and Fiorenzuola, Italy was carried out over the years 1978–1982 with the objective of comparing the individual selection of the two breeding teams and assessing the adaptation of the surviving selections. Visual selection in the generations F3 to F5 did not result in any clear cut compartmentalisation of the material and both teams were as likely to select from families previously selected only by the other team as from families they had themselves previously selected. Lines with specific adaptation to each site as well as lines well adapted to both sites were identified from yield trials carried out in F5 and F6. The former showed only a very small yield advantage over lines with general adaptation to both sites. |
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Keywords: | Hordeum vulgare winter barley joint-selection adaptation |
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