Delineation of Genotype × Environment Interaction for Identification of Stable Genotypes to Grain Yield in Mungbean

Abstract

In the present study, fifty-two mungbean (Vigna radiata) genotypes were evaluated for seven morphological traits at three different environments in South Indian state Tamil Nadu, namely Virinjipuram (E1), Eachangkottai (E2), and Bhavanisagar (E3) during Kharif 2017, 2018, and 2019, respectively. The data collected were subjected to variability and correlation analyses, followed by stability analysis using additive main effects and multiplicative interaction (AMMI) model, genotype and genotype × environment interaction effects (GGE) biplot. Variablility was observed among the genotypes for the following traits viz., plant height, days to fifty per cent flowering, number of pods per plant, pod length, number of seeds per pod, hundred seed weight and grain yield. Correlation analysis showed that the trait number of pods per plant was significantly associated with grain yield. The G × E was smaller than the genetic variation of grain yield as it portrayed the maximum contribution of genotypic effects (61.07%). GGE biplot showed E3 as a highly discriminating and representative environment. It also identified environment-specific genotypes viz., EC 396111 for E1, EC 396125 for E2 and EC 396101 for E3 environments. The genotypes with minimum genotype stability index (GSI) viz., V2802BG (7), HG 22 (13), and EC 396098 (13) were observed with wide adaptation and high yields across all the three environments. In summary, we identified stable genotypes adapted across environments for grain yield. These genotypes can be used as parent/pre-breeding materials in future mungbean breeding programs.

Development of Novel Blackgram (Vigna mungo (L.) Hepper) Mutants and Deciphering Genotype × Environment Interaction for Yield-Related Traits of Mutants

“…A vertical line to the AEC axis indicated that G36, G5, G15, G2, and G9 were stable and good-to low-yielding genotypes. Similar results were reported for cowpea [51] and mungbean [50][51][52][53]. The projection on the AEA was nearer to zero for the genotypes G18 and G29 followed by G31 and G36, indicating the limited interaction between these genotypes and environments.…”

Elucidation of Genotype × Environment Interaction for Identification of Stable Genotypes to Grain Yield of Rice (Oryza sativa L.) Varieties in Bangladesh Rainfed Condition

“…The presence of a significant proportion of GEI is necessary for stability analysis of rice. This is in harmony with the findings of Samyuktha et al, (2020) in mungbean.…”

Ecogeographic assessment of mung bean (Vigna radiata (L.) R. Wilczek) from the collection of the Vavilov Institute (VIR)

“…В наших исследованиях в обоих пунктах изучения образцов наблюдалась сильная изменчивость фенологических и хозяйственно ценных признаков и их зависимость от условий произрастания. Зависимость урожайности маша от погодных условий и генотипа неоднократно отражена в научной литературе (Ullah et al, 2012;Win et al, 2018;Samyuktha et al, 2020). При эколого-географическом изучении маша в шести климатических зонах Индии получены сопоставимые с нашими результаты о влиянии климатических условий и генотипа на размер семян и продуктивность семян с растения (Thangavel et al, 2011).…”