Estimation of the seed yield traits heterosis for single cross and three-way cross hybrids of oilseed rape (Brassica napus L.)
Joanna Wolko
jwolko@nico.ihar.poznan.plInstytut Hodowli i Aklimatyzacji Roślin — Państwowy Instytut Badawczy, Oddział w Poznaniu (Poland)
https://orcid.org/0000-0001-7733-3880
Agnieszka Dobrzycka
Instytut Hodowli i Aklimatyzacji Roślin — Państwowy Instytut Badawczy, Oddział w Poznaniu (Poland)
https://orcid.org/0000-0003-3516-5393
Jan Bocianowski
Uniwersytet Przyrodniczy w Poznaniu (Poland)
https://orcid.org/0000-0002-0102-0084
Abstract
The winter oilseed rape (Brassica napus L.) is one of the most important oil plants in Poland and world wide. Utilization of heterosis has greatly increased rapeseed fertility of hybrid varieties. The aim of this work was to estimate the heterosis in two populations of winter oilseed rape. The poster presents the heterosis responce occurred in plant height, silique length, number of seeds per silique and the thousand seed weight. In single cross hybrids the heterosis response was calculated over the average parents (DH and CMS line), while in three-way cross hybrids - over the average of two “direct” parents (CMS/DH hybrid and Rfo line) or over the average of three “indirect” parents (DH, CMS and Rfo line). The tested hybrids showed both highly significant positive and negative heterosis in the studied traits.
Keywords:
heterosis, yield-related traits, hybrid breeding, winter oilseed rapeWolko, J. ., Dobrzycka, A. . and Bocianowski, J. . (2019) “Estimation of the seed yield traits heterosis for single cross and three-way cross hybrids of oilseed rape (Brassica napus L.)”, Bulletin of Plant Breeding and Acclimatization Institute, (287), pp. 21–22. doi: 10.37317/biul-2019-0099.
Authors
Joanna Wolkojwolko@nico.ihar.poznan.pl
Instytut Hodowli i Aklimatyzacji Roślin — Państwowy Instytut Badawczy, Oddział w Poznaniu Poland
https://orcid.org/0000-0001-7733-3880
Authors
Agnieszka DobrzyckaInstytut Hodowli i Aklimatyzacji Roślin — Państwowy Instytut Badawczy, Oddział w Poznaniu Poland
https://orcid.org/0000-0003-3516-5393
Authors
Jan BocianowskiUniwersytet Przyrodniczy w Poznaniu Poland
https://orcid.org/0000-0002-0102-0084
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