Influence of testers selection on estimation of GCA effects in spring oilseed rape inbred lines
Jan Bocianowski
jan.bocianowski@up.poznan.plKatedra Metod Matematycznych i Statystycznych, Uniwersytet Przyrodniczy w Poznaniu (Poland)
Henryk Brzeskwiniewicz
Katedra Metod Matematycznych i Statystycznych, Uniwersytet Przyrodniczy w Poznaniu (Poland)
Tadeusz Łuczkiewicz
Katedra Genetyki i Hodowli Roślin, Uniwersytet Przyrodniczy w Poznaniu (Poland)
Abstract
Breeding values of important agricultural traits can be obtained e.g. by application of suitable schemes of crossing parental forms. If the number of inbred lines is great, experiments with hybrids obtained from line tester crosses are usually performed. In this procedure, a number of inbred lines tested is higher than that using diallel crosses. However, selection of testers differentiating the analyzed inbred lines in respect of interested trait is often a large problem. In this work we deal with the results from four field experiments with spring rape. We analyzed GCA effects of six inbred lines in F1 generation after crosses with two testers (also inbred lines). The paper shows the results for seed weight per plant. Statistical analysis allowed to distinguish tester G49 as the most useful in differentiation of inbred lines in respect of this trait.
Keywords:
GCA, line × tester, seeds weight per plant, spring rapeReferences
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Authors
Jan Bocianowskijan.bocianowski@up.poznan.pl
Katedra Metod Matematycznych i Statystycznych, Uniwersytet Przyrodniczy w Poznaniu Poland
Authors
Henryk BrzeskwiniewiczKatedra Metod Matematycznych i Statystycznych, Uniwersytet Przyrodniczy w Poznaniu Poland
Authors
Tadeusz ŁuczkiewiczKatedra Genetyki i Hodowli Roślin, Uniwersytet Przyrodniczy w Poznaniu Poland
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Copyright (c) 2008 Jan Bocianowski, Henryk Brzeskwiniewicz, Tadeusz Łuczkiewicz
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