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Yield and Mineral Composition among Mungbean [Vigna radiata (L.) R. Wilczek] Genotypes Grown in Different Agroecologies in East Africa

OAR@ICRISAT

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Relation http://oar.icrisat.org/12526/
https://www.hindawi.com/journals/ija/2023/5534650/
https://doi.org/10.1155/2023/5534650
 
Title Yield and Mineral Composition among Mungbean [Vigna radiata
(L.) R. Wilczek] Genotypes Grown in Different Agroecologies in East Africa
 
Creator Mbeyagala, E K
Karimi, R
Binagwa, P H
Amuge, E S
Vemula, A K
Nair, R M
 
Subject Genetics and Genomics
East Africa
 
Description Mungbean [Vigna radiata (L.) R. Wilczek var. radiata] also referred to as green gram is a key crop especially in the marginal areas of East Africa. It is rich in micronutrients and protein and thus can help ameliorate malnutrition if incorporated into diets. 'is study was conducted to evaluate the performance of 26 fixed elite mungbean breeding genotypes for yield and micronutrient composition across di6erent locations in East Africa (Uganda, Kenya, and Tanzania). 'e genotypes displayed significant variability for nutritional, phenology, and yield-related traits across test environments. Significant genotype e6ects were observed
for most of the traits except for average yield per plant and dry matter content (P < 0.05). Random effect of environment was significant for all traits, and significant GXE was observed for all traits except for dry matter and iron content (P < 0.05). Moderate to high broad-sense heritability (H2) was found among traits except for dry matter content which was low (H2 =10.4%). 'ere was
a signi4cant and positive correlation between Fe and Zn (r =0.58), and Fe and Ca (r=0.46), indicating the potential to enhance these traits simultaneously through breeding and/or selection. However, the correlation between yield and nutrients (iron, zinc, and calcium) was negative. Environments KAT_SR_2019, KYM_LR_2020, and KYM_LR_2020 were found to be discriminating (informative) and representative of grain yield, calcium, and zinc content, respectively. Genotypes AVMU 1679, AVMU 1685, and AVMU 1686 combined both stability and high micronutrient content, while the high yielding and stable genotypes were AVMU 1689, AVMU 1681, and AVMU 16102. The identified genotypes need to be assessed for farmer preference in on-farm trials before they can be recommended for release as new varieties. Additionally, these genotypes will be useful in future breeding efforts as
donors aimed at developing nutrient-dense and high yielding mungbean varieties.
 
Publisher Hindawi
 
Date 2023-10-25
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights cc_attribution
 
Identifier http://oar.icrisat.org/12526/1/International%20Journal%20of%20Agronomy_2023_1-17_2023.pdf
Mbeyagala, E K and Karimi, R and Binagwa, P H and Amuge, E S and Vemula, A K and Nair, R M (2023) Yield and Mineral Composition among Mungbean [Vigna radiata (L.) R. Wilczek] Genotypes Grown in Different Agroecologies in East Africa. International Journal of Agronomy, 2023. pp. 1-17. ISSN 1687-8167