Genotype by environment interaction of “carioca” seeded common bean advanced lines in northeastern Brazil

Abstract

The objectives of the present work were to identify common bean lines with high grain yield, adaptability and stability; stratify the environment; and detect the most important factors for the genotype by environment (G×E) interaction in northeastern Brazil. Nineteen experiments were conducted in a randomized block design with three replications during the rainy growing season at 11 locations in the States of Pernambuco, Alagoas, Sergipe, and Bahia in 2009 and 2010. In each experiment, 16 "carioca" seeded lines were evaluated, and the grain yield, assessed. Data were subjected to analyses of variance and adaptability and stability by the methodologies of Annicchiarico and Additive Main Effects and Multiplicative Interactions (AMMI), analysis of the factors for environmental stratification and joint analysis with decomposition of the G×E interaction in genotype by year and genotype by location. According to the AMMI method, BRS Estilo and CNFC 11951 were selected as stable high-yielding lines. CNFC 11954, IPR Juriti, CNFC 11948 and BRS Estilo were identified as stable high-yielding lines based on the methodology of Annicchiarico. BRS Estilo was identified as stable according to both methodologies and was therefore considered suitable for growth in the Northeast region for use as a parent line in regional breeding programs. The locations in this region used to test the common bean lines were informative, except Carira, which could be eliminated from the assay network. Interaction among genotypes, locations and years were observed, suggesting that assessments shoud be conducted at the largest number of locations and years, in this order of importance. Key words: Phaseolus vulgaris L. Grain yield. Environmental stratification. Stability. ResumoOs objetivos desse trabalho foram identificar linhagens de feijoeiro-comum com alta adaptabilidade e estabilidade de produção, realizar a estratificação ambiental e identificar quais fatores são mais importantes para a interação genótipos × ambientes (G×E) metodologias de Annicchiarico e AMMI, à análise de fatores para estratificação ambiental e à análise conjunta com decomposição da interação G×E em genótipos × anos e genótipos × locais. As linhagens BRS Estilo e CNFC 11951 apresentam alta produtividade e estabilidade, pela metodologia AMMI. As linhagens CNFC 11954, IPR Juriti, CNFC 11948 e BRS Estilo apresentam alta produtividade e estabilidade, pela metodologia de Annicchiarico. BRS Estilo foi identificada como estável pelas duas metodologias, sendo, portanto, indicada para semeadura na Região Nordeste e para utilização como genitor em programas de melhoramento que visam o lançamento de cultivares para essa região. Os locais utilizados para avaliação de feijoeiro-comum nessa região são informativos, exceto Carira, que poderá ser eliminado da rede. Existe interação entre os genótipos, locais e anos nessa região, o que faz com que as avaliações sejam realizadas no maior número possível de locais e anos, nessa ordem de importância. Palavras-chave: Phaseolus vulgaris ...

Adaptability and stability of common bean genotypes in family farming systems

“…The performance of the genotypes was affected by variations in the different environmentsaltitude, for example, varied from 448 to 1,036 m -, as well as by years and seasons. For this reason, common bean cultivars must show stability in order to be competitive in contrasting environmental conditions (Pereira et al, 2016). Whenever possible, farmers try to control the environment in order to maximize the productive potential of cultivars, but when they do not have the economic conditions to do this, they probably will have to rely on the stability and adaptability of the cultivars to the cropping site.…”

“…The BRS Pitanga and BRS Pontal cultivars and the CNFC 10753 line contributed the most to the interaction with environments due to their highest WAAS values. Pereira et al (2009aPereira et al ( , 2016 used this estimation to identify stable carioca grain genotypes -such as the BRS Estilo and Pérola cultivars -in states of the Midwestern and Northeastern regions of Brazil. Table 2.…”

“…A marked interaction between genotypes and environments is also expected for this crop, particularly regarding grain yield, whose importance has been evidenced in several studies (Oliveira et al, 2006;Melo et al, 2007;Pereira et al, 2009bPereira et al, , 2012Torga et al, 2013b). However, there are no consistent reports in the literature for the specific conditions of the family farming system, because common bean breeding programs focus on genotypes with an extensive range of adaptation (Torga et al, 2013a;Pereira et al, 2016).…”

Between‐ versus within‐species variation in plant–soil feedback relates to different functional traits, but exudate variability is involved at both scales

“…The functional traits tested to explain PSF were thus not measured in the same conditions as PSF itself (soil matrix, fertilizer use). While absolute trait values were certainly modified (phenotypic plasticity), relative trait values should have remained mostly unaffected, as a large number of studies indicate that the species/genotype factor explains much more variation in plant functional traits along environmental gradients than the species/genotype-by-environment interaction (e.g Barker et al, 2019;Da Silveira Pontes et al, 2010;Mudrák et al, 2019;Pereira et al, 2017)…”

Growing season and productivity of covered oats

“…Известно, что урожайность -это результат сложного взаимодействия генотип -среда, она определяет конкурентные преимущества сорта и его пригодность для использования в производстве [8,9]. Важен не только абсолютный уровень урожайности, но и его стабильность вне зависимости от агроклиматических ресурсов и продолжительности периода вегетации.…”