The effects of genotype-environment interaction on the yield and its structure in some winter cereals
Paweł Dopierała
biuro@kws.comKWS LOCHOW POLSKA Sp. z o.o. (Poland)
Leszek Kordas
Katedra Kształtowania Agroekosystemów, Uniwersytet Przyrodniczy we Wrocławiu (Poland)
Abstract
In the paper, yielding and yield components of winter wheat, triticale, open-pollinated rye and hybrid rye are presented. The investigations were carried out on four standard cultivars from the Research Centre for Cultivar testing (COBORU): winter wheat — cv. Tonacja, winter triticale — cv. Moderato, open-pollinated rye — cv. Dańkowskie Diament, and hybrid rye — cv. Balistic. The studies were conducted on medium-heavy soils (valuation class: 4a–4b) at three localizations in Poland. The same cultivation technology was applied for all the cultivars. Significant differences in yielding between the tested cultivars were found. The interaction between yield and localization appeared to be positive. Significant regression relation between yield and environment was shown but also the deviations from regression were also found to be significant. The highest main yield in both years of the study was obtained with cv. Balistic. The open-pollinated rye cv. Dańkowskie Diament yielded evidently lower in the first study year, and winter wheat cv. Tonacja in both years. The cultivar Balistic was characterized by the highest number of ears per unit area, cv. Moderato produced the greatest number of grains per ear, and cv. Tonacja achieved the highest weight of 1000 grains.
Keywords:
cereals, cultivars, genotype-environment interaction, medium-heavy soils, yielding, yield components, varietiesReferences
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Authors
Leszek KordasKatedra Kształtowania Agroekosystemów, Uniwersytet Przyrodniczy we Wrocławiu Poland
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Copyright (c) 2009 Paweł Dopierała, Leszek Kordas
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