Breeding value of selected maize inbred lines
Sylwia Lewandowska
Katedra Genetyki, Hodowli Roślin i Nasiennictwa, Uniwersytet Przyrodniczy we Wrocławiu (Poland)
Rafał Kuriata
Katedra Genetyki, Hodowli Roślin i Nasiennictwa, Uniwersytet Przyrodniczy we Wrocławiu (Poland)
Władysław Kadłubiec
Katedra Genetyki, Hodowli Roślin i Nasiennictwa, Uniwersytet Przyrodniczy we Wrocławiu (Poland)
Abstract
The aim of the studies was to determine genetic crossing potential of 11 maize inbred lines on the basis of general and specific combining abilities. Seven dent inbred lines were crossed with four flint testers giving finally twenty-eight single hybrids. The experiment, involving the lines and hybrids, was established during years 2004–2006 in the experimental field in Kobierzyce. The following traits were analyzed: plant height, ear height, ear length, ear diameter, number of grain rows, number of grains per ear, dry matter content and grain yield. On the basis of available information, it might be concluded that the lines were of different origins. Statistical calculations were carried out on the average values of each plot. Variance analysis showed significant differences of GCA effects of maternal lines for length and diameter ear, number of grain rows, dry matter content and grain yield. The interaction of GCA effects for tested lines in years was found for the following traits: ear diameter, number of grain rows, dry matter content and grain yield. In turn, significant differences of SCA effects were found for ear diameter, number of grain rows, dry matter content and finally grain yield. Summarizing, the effects of general combining value for all characters varied, therefore none of the tested lines can be clearly distinguished as having beneficial effects on all tested traits.
Keywords:
genetic crossing potential, inbred lines, maize single hybridsReferences
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Authors
Sylwia LewandowskaKatedra Genetyki, Hodowli Roślin i Nasiennictwa, Uniwersytet Przyrodniczy we Wrocławiu Poland
Authors
Rafał KuriataKatedra Genetyki, Hodowli Roślin i Nasiennictwa, Uniwersytet Przyrodniczy we Wrocławiu Poland
Authors
Władysław KadłubiecKatedra Genetyki, Hodowli Roślin i Nasiennictwa, Uniwersytet Przyrodniczy we Wrocławiu Poland
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Copyright (c) 2012 Sylwia Lewandowska, Rafał Kuriata, Władysław Kadłubiec
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