Genotype by environment interaction for seed yield per plant in rapeseed using AMMI model

Pesquisa Agropecuária Brasileira

Ana Marjanović-jeromela¹  Nevena Nagl¹  Jelica Gvozdanović-varga¹  Nikola Hristov¹  Ankica Kondić-Špika¹  Mirjana Vasićand Radovan Marinković¹ 

[1] ,Institute of Field and Vegetable CropsNovi Sad Serbia

关键词: Brassica napus;    adaptability;    biplot;    stability;    yield component;    Brassica napus;    adaptabilidade;    biplot;    estabilidade;    componentes de rendimento;   

DOI  :  10.1590/S0100-204X2011000200009

来源: SciELO

【 摘 要 】

The objective of this study was to assess genotype by environment interaction for seed yield per plant in rapeseed cultivars grown in Northern Serbia by the AMMI (additive main effects and multiplicative interaction) model. The study comprised 19 rapeseed genotypes, analyzed in seven years through field trials arranged in a randomized complete block design, with three replicates. Seed yield per plant of the tested cultivars varied from 1.82 to 19.47 g throughout the seven seasons, with an average of 7.41 g. In the variance analysis, 72.49% of the total yield variation was explained by environment, 7.71% by differences between genotypes, and 19.09% by genotype by environment interaction. On the biplot, cultivars with high yield genetic potential had positive correlation with the seasons with optimal growing conditions, while the cultivars with lower yield potential were correlated to the years with unfavorable conditions. Seed yield per plant is highly influenced by environmental factors, which indicates the adaptability of specific genotypes to specific seasons.

【 授权许可】

CC BY   
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