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- W2751329599 abstract "Drought stress is the most important environmental constraint contributing to grain yield instability of maize (Zea mays L.). This study extracted multi-environment trial data sets from southern Guinea savanna of Nigeria maize trials using Additive Main Effects and Multiplicative Interaction (AMMI) and Genotype and Genotype-Environment (GGE) biplot models which assessed the performance of drought tolerant (DT) maize genotypes and identified best genotypes for suitable sites. The impact of environmental changes and economic implications of producing DT maize were estimated. The test environments contributed about 75-100% of the total variation in grain yield. The ideal locations for DT maize cultivation were identified. Ilorin/Ballah, Ejiba/Mokwa and Kishi/Badeggi are core test locations for evaluation of early OPVs, intermediate/late OPVs and Hybrids, respectively. The following promising genotypes are recommended for further evaluation in farmer’s fields: TZE-Y-DT-Str-C4 (early OPV), White-DT-STR-SYN (intermediate/late maturing OPV), TZE-W-Pop-DT STR-C5 (early maturing hybrid) and TZEEI 3 x TZEEI 46(extra early genotype). The potential impact of investing in drought tolerant maize shows an economic return of US$ 571 and US$ 1426 per hectare for cultivating OPVs and hybrids, respectively. The study shows that maize yields increase with more seasonal rainfall and decrease with higher temperatures. However, increased rainfall variability during the growing season reduces yields for maize. Thus, simultaneous considerations of technological improvements and the development of the overall availability and predictability of water resources are likely required to see sustainable improvements in maize production given projected climate trends and variability." @default.
- W2751329599 created "2017-09-15" @default.
- W2751329599 creator A5013347529 @default.
- W2751329599 date "2017-09-01" @default.
- W2751329599 modified "2023-10-03" @default.
- W2751329599 title "Green Strategy for Maize Varietal Selection and Identification of Suitable Sites in Drought-Prone Ecologies in Southern Guinea Savanna of Nigeria" @default.
- W2751329599 hasPublicationYear "2017" @default.
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