Abstract Drought remains a major constraint on maize productivity in tropical environments. Consequently, maize requires the identification of hybrids that combine high yield with stability across variable conditions. Ten tropical maize hybrids (eight promising candidates and two commercial checks) were evaluated across five environments (three optimal and two drought-stressed) using a randomized complete block design. Significant genotype, environment, and G × E effects (p < 0.01) were detected for nearly all traits, confirming substantial phenotypic variability. Drought stress reduced grain yield by 32.34%, primarily due to declines in ear weight and kernel size. Based on stress tolerance indices, GGE biplot, and WAASB analysis, hybrids G01, G02, and G08 were identified as the most drought-tolerant genotypes with broad stability. MGIDI further confirmed these selections, with G01 specifically achieving the lowest multi-trait distance to the ideotype under both optimal (1.12) and drought conditions (0.56). These results support the recommendation of these superior hybrids for deployment in tropical maize production systems prone to water deficit.
Background: Drought tolerance in maize is essential for stabilizing yields amid increasingly erratic rainfall patterns. This study aimed to estimate the heritability of agronomic and morpho-physiological traits, predict genetic gain under water stress and identify top-performing hybrids across varying drought intensiti...
Suwardi, M. Azrai, M. Riadi et al.· Indian Journal of Agricultur...· 0 citations
Drought is a major constraint on crop production especially in maize. It significantly reduces productivity, affecting the livelihoods of millions and the overall economy. Malnutrition due to lack of essential nutrients like Vitamin A is another major challenge in many African countries. Breeding for pro-vitamin A drou...
S. D. Zakariya, M. Oyekunle, I. Usman et al.· FUDMA Journal of Agriculture...· 0 citations
Drought severely limits crop productivity, and the processes that support yield stability in modern maize heterotic hybrids remain insufficiently characterized. We evaluated two maize elite F1 hybrids, H.393 and H.166, under prolonged moderate water deficit in greenhouse and field conditions to identify genotype-specif...
T. Satarova, P. Soudek, R. Podlipná et al.· New Biotechnology· 0 citations
Water is essential for crop growth; however, excess moisture during early establishment severely impairs plant survival and productivity. In soybean, flooding at the pre-germination stage can result in substantial stand loss. In this study, 50 soybean genotypes were evaluated for pre-germination anaerobic stress to...
Ambika Rajendran, D. Raju, B. Mallikarjuna et al.· Plant genetic resources· 0 citations
Maize grain yield is frequently constrained by water scarcity, particularly in tropical regions characterized by irregular rainfall patterns. Dissecting the genetic basis of drought-related traits remains challenging because their expression is strongly influenced by environmental conditions. In this study, we applied...
Carina de Oliveira Anoni, Kaio Olímpio das Graças Dias, Martin P. Boer et al.· G3· 0 citations
We use cookies to run the site and, with your consent, for analytics and to show ads.
See our Cookie Policy.
