Yield stability studies of soybean (Glycine max (L.) Merrill) under rhizobia inoculation in the savanna region of Nigeria

Abstract

Soybean (Glycine max (L.) Merrill) production is expanding into temperate and tropical environments. Yield stability studies under rhizobia inoculation were investigated in 24 soybean genotypes over two successive growing seasons at three agro-ecological zone of Nigeria, during the 2015-2016 rainy seasons. Treatments were arranged in a split-plot design and replicated three times. Treatments were 24 soybean genotypes and three levels of rhizobia inoculation. Results indicated that the variation of genotypes and inoculation on percentage emergence, height, number of leaves, number of branches per plant, total biomass yield, above-ground biomass and seed yield was significant (p = .05). The effects of genotypes (G), environment (E) and G 9 E interactions on seed yield were also significant. Two soybean genotypes (TGx 1989-45F and TGx 1990-110FN) were identified as the most promising in relation to yield stability. Of the three locations, Abuja produced the least interaction effects followed by Igabi and may be most appropriate environments for large-scale soybean production. Appropriate inoculation of soybean with inoculants (LegumeFix and or NoduMax) should be encouraged in farmer's field.

Stevia (Stevia Rebaudiana B.) Genotypes Assessment for Leaf Yield Stability Through Genotype by Environment Interactions, Ammi, and Gge Biplot Analyses

“…In other studies, different soil conditions can also influence the genotype responses of yield in crop plants (Prayoga et al, 2021). Tolorunse et al (2018) reported that significant environmental differences are the critical cause of the emergence of GEI in soybean and other crops. Therefore, the existence of GEI can make the plant selection process difficult.…”

Exploring the Phenotypic Stability of Soybean Seed Compositions Using Multi-Trait Stability Index Approach

“…Climate change may make it more difficult to cultivate crops in the same way and regions as in the past. The impacts of climate change must be weighed against other chang-2 of 13 ing elements that affect agricultural productivity, such as changes in farming techniques and technology [5,6]. Protein and oil contents in soybeans are two of the most important seed quality factors that soybean breeders, growers, and marketers take into account.…”

“…Typically, phenotypic stability of distinct traits, either yield or quality traits, is the ability of a genotype to perform consistently in various environments [12]. It is worth noting that determining the stability pattern of genotypes is a prerequisite for understanding their response to different environments, identification of stable and widely adapted genotypes, and breeding new cultivars that could adapt to the different environments [12,13]. Thus, plant breeders' always aim to select varieties with high performance across different environments.…”

Influence of genotype-environment interaction on soybean (Glycine max L.) genetic divergence under semiarid conditions

“…Thus, studies such as the one presented in this work become quite relevant since the agricultural frontier for soybean cultivation has increased in the northeast region of Brazil, as has the demand for adapted cultivars. The presence of cross-interaction has also been mentioned by several authors when evaluating soybean cultivars under different edaphoclimatic conditions (8,11,23,26,33).…”

“…This is not commonly observed duirng the evaluation of soybean genotypes in various environments. Generally, for soybeans, the effect of genotypes has a greater effect on the phenotype (3,5,22,26,33).…”