Pleiotropic effects of Ppd1 gene on yield and its components in recombinant lines of common wheat
Danuta Miazga
dziekanat.agbioinz@up.lublin.plInstytut Genetyki i Hodowli Roślin, Akademia Rolnicza, Lublin (Poland)
Anthony J. Worland
John Innes Centre, Norwich, Anglia (United Kingdom)
Krzysztof Kowalczyk
Instytut Genetyki i Hodowli Roślin, Akademia Rolnicza, Lublin (Poland)
Maria Chrząstek
Instytut Genetyki i Hodowli Roślin, Akademia Rolnicza, Lublin (Poland)
Edyta Paczos
Instytut Genetyki i Hodowli Roślin, Akademia Rolnicza, Lublin (Poland)
Abstract
Pleiotropic effects of the Ppd1 genes on yield and its components were investigated using homozygous recombinant lines: Avalon (Mara 2D), Avalon (Ciano 2D), Brigand (Mara 2D), Brimstone (Mara 2D), Brimstone (Ciano 2D), Mercia (Mara 2D), Norman (Mara 2D), Randezvous (Mara 2D) and parental cultivars Avalon, Brigand, Brimstone, Mercia, Norman and Randezvous. Experiments were carried out over two seasons (1997/1998, 1998/1999) in the experimental farm in Czeslawice. Every year about 550 germinated kernels per m2 were machine-sown on 5 m2 plots in four replicates. Number of days from May 1st until full ear emergence, plant height, number of spikelets per spike, number of grains per ear, weight of grains in ear, 1000 grain weight, spikelet fertility and plot yield were analyzed. During two seasons the recombinant lines with the Ppd1 gene showed accelerated ear emergence. The differences between the analyzed recombinant lines and their control (cultivars with the Ppd1 gene) were significant. Value of some yield components depended mainly on a year and to a lower degree, on recombinant lines.
Keywords:
day length insensitivity genes (Ppd1), yield components, recombinant lines, common wheatReferences
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Authors
Danuta Miazgadziekanat.agbioinz@up.lublin.pl
Instytut Genetyki i Hodowli Roślin, Akademia Rolnicza, Lublin Poland
Authors
Anthony J. WorlandJohn Innes Centre, Norwich, Anglia United Kingdom
Authors
Krzysztof KowalczykInstytut Genetyki i Hodowli Roślin, Akademia Rolnicza, Lublin Poland
Authors
Maria ChrząstekInstytut Genetyki i Hodowli Roślin, Akademia Rolnicza, Lublin Poland
Authors
Edyta PaczosInstytut Genetyki i Hodowli Roślin, Akademia Rolnicza, Lublin Poland
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