Influence of the direction of crossing on the expression of seed colour and yield components in DH line populations of winter oilseed rape
Laurencja Szała
l.szala@ihar.edu.plInstytut Hodowli i Aklimatyzacji Roślin — PIB, Zakład Genetyki i Hodowli Roślin Oleistych, Poznań (Poland)
Zygmunt Kaczmarek
Instytut Genetyki Roślin Polskiej Akademii Nauk (Poland)
Elżbieta Adamska
Instytut Genetyki Roślin Polskiej Akademii Nauk (Poland)
Teresa Cegielska-Taras
Instytut Hodowli i Aklimatyzacji Roślin — PIB, Zakład Genetyki i Hodowli Roślin Oleistych, Poznań (Poland)
Abstract
The main goal of presented study was to determine the influence of the direction of the crossing on the expression of seed colour and yield components and as well as selection of DH lines with light colour seeds and with improved yield components as well as fat content compared to the parental yellow-seeded line. The material consisted of two populations of DH lines derived from F1 hybrids obtained from reciprocal crosses between black seeded DH H2- 26 and yellow seeded line DH Z-114. Doubled haploids were examined in an unreplicated field trial with a regularly distributed standards (both parental lines.) Biometric measurements were made for the components of seed yield, fat content was estimated and seed colour was evaluated. Analysis of variance carried out for 6 traits, has allowed the designation of the statistical characteristics for each of the two populations of DH lines and parental populations and to investigate the significance of differences between them. Division of populations into four homogeneous groups, significantly different from each other, for each of the studied traits, allowed to assess the influence of the direction of crossing. In addition, the assessment of the contrast between given DH lines and the best parental line allowed the separation of transgressive DH lines. Based on testing comparisons between light seed colour DH lines and parental line DH Z-114, it was possible to distinguish two lines: DH HZ-6 and DH ZH-54 with significantly higher number of pods per plant.
Keywords:
analysis of variance, DH lines, seed colour, winter oilseed rape, yield componentsReferences
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Authors
Laurencja Szałal.szala@ihar.edu.pl
Instytut Hodowli i Aklimatyzacji Roślin — PIB, Zakład Genetyki i Hodowli Roślin Oleistych, Poznań Poland
Authors
Zygmunt KaczmarekInstytut Genetyki Roślin Polskiej Akademii Nauk Poland
Authors
Elżbieta AdamskaInstytut Genetyki Roślin Polskiej Akademii Nauk Poland
Authors
Teresa Cegielska-TarasInstytut Hodowli i Aklimatyzacji Roślin — PIB, Zakład Genetyki i Hodowli Roślin Oleistych, Poznań Poland
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Copyright (c) 2012 Laurencja Szała, Zygmunt Kaczmarek, Elżbieta Adamska, Teresa Cegielska-Taras
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