Genotype by environment interaction for length of flowering time in winter oilseed rape (Brassica napus L.) using additive main effects and multiplicative interaction model
Journal Title: Colloquium Biometricum; Colloquium Biometricum (Online) - Year 2018, Vol 48, Issue
Abstract
The objective of this study was to assess genotype by environment interaction for length of flowering time in winter oilseed rape cultivars grown in West Poland by the additive main effects and multiplicative interaction model. The study comprised of 25 winter oilseed rape genotypes (15 F1 CMS ogura hybrids, eight parental lines and two European cultivars: open pollinated Californium and F1 hybrid Hercules), evaluated at five locations in a randomized complete block design, with four replicates. Across location average length of flowering time of the tested genotypes ranged from 22.3 to 27.4 days. In the AMMI analyses, 78.42% of the length of flowering time total variation was explained by environments, 4.34% by genotypes, and 9.04% by genotype × environment interaction. The line PN68 is recommended for further use in the breeding program due to its low average length of flowering time (24.5 days) and very good stability across environments (ASV=0.37).
Authors and Affiliations
Jan Bocianowski, Kamila Nowosad, Alina Liersch, Wiesława Popławska, Agnieszka Łącka
Keywords
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