Estimation of combining ability of inbred lines of maize
Part I. Use of dent lines as testers of maternal lines
Władysław Kadłubiec
kghrin@upwr.edu.plKatedra Hodowli Roślin i Nasiennictwa Akademii Rolniczej we Wrocławiu (Poland)
Rafał Kuriata
Katedra Hodowli Roślin i Nasiennictwa Akademii Rolniczej we Wrocławiu (Poland)
Jadwiga Horobiowska
Hodowla Roślin Rolniczych „Nasiona Kobierzyc” sp. z o.o (Poland)
Cecylia Karwowska
Hodowla Roślin Rolniczych „Nasiona Kobierzyc” sp. z o.o (Poland)
Zbigniew Kurczych
Hodowla Roślin Rolniczych „Nasiona Kobierzyc” sp. z o.o (Poland)
Abstract
Genetic variability of agricultural traits of maize inbred lines is a valuable trait that is useful in breeding practice, especially for selecting parental lines to achieve the effect of heterosis. Twenty-four hybrids obtained from crossing 6 inbred lines with 4 dent lines were analyzed. The experiment was carried out in two localities (Kobierzyce and Smolice), using a randomized block design with two replications. Lodging at harvest, smut resistance, dry matter content and grain yield were evaluated. The of analysis variance showed significant differences between localities in all the traits as well as differences in two traits within Kobierzyce, and in three traits within Smolice localities. The analysis of combining ability reviled significant interaction of GCA and SCA with the environments affecting dry matter content and grain yield. A female line 1294-7 is noteworthy, as it influenced both a grain yield and dry matter content. Hybrid 1044-87 × S335 was characterized by a high yield and high content of dry matter.
Keywords:
maize, combining ability, genotype × environment interactionReferences
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Authors
Władysław Kadłubieckghrin@upwr.edu.pl
Katedra Hodowli Roślin i Nasiennictwa Akademii Rolniczej we Wrocławiu Poland
Authors
Rafał KuriataKatedra Hodowli Roślin i Nasiennictwa Akademii Rolniczej we Wrocławiu Poland
Authors
Jadwiga HorobiowskaHodowla Roślin Rolniczych „Nasiona Kobierzyc” sp. z o.o Poland
Authors
Cecylia KarwowskaHodowla Roślin Rolniczych „Nasiona Kobierzyc” sp. z o.o Poland
Authors
Zbigniew KurczychHodowla Roślin Rolniczych „Nasiona Kobierzyc” sp. z o.o Poland
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Copyright (c) 2003 Władysław Kadłubiec, Rafał Kuriata, Jadwiga Horobiowska, Cecylia Karwowska, Zbigniew Kurczych
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