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.pl
Instytut 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 rape


Published
2019-11-30

Cited by

Wolko, 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 Wolko 
jwolko@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 Dobrzycka 

Instytut Hodowli i Aklimatyzacji Roślin — Państwowy Instytut Badawczy, Oddział w Poznaniu Poland
https://orcid.org/0000-0003-3516-5393

Authors

Jan Bocianowski 

Uniwersytet Przyrodniczy w Poznaniu Poland
https://orcid.org/0000-0002-0102-0084

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