A5031278958- Agricultural pest management studies
- Genetic and Environmental Crop Studies
- Legume Nitrogen Fixing Symbiosis
- Genetics and Plant Breeding
- Soybean genetics and cultivation
- Plant pathogens and resistance mechanisms
- Seed Germination and Physiology
- Plant Pathogens and Fungal Diseases
- Phytase and its Applications
- Agronomic Practices and Intercropping Systems
- Plant Pathogenic Bacteria Studies
- Wheat and Barley Genetics and Pathology
- Botanical Research and Chemistry
- Plant Genetic and Mutation Studies
- Plant Pathogens and Resistance
- Seed and Plant Biochemistry
- Plant tissue culture and regeneration
- Yeasts and Rust Fungi Studies
- Proteins in Food Systems
- African Botany and Ecology Studies
- Plant Micronutrient Interactions and Effects
- Food Security and Health in Diverse Populations
- Advances in Cucurbitaceae Research
- Rangeland and Wildlife Management
- Phytoestrogen effects and research
International Institute of Tropical Agriculture
2015-2025
International Institute of Tropical Agriculture
2016-2024
Tropical Crops Genetic Resources Institute
2023
Genetic Resources Center
2023
Federal University of Technology
2022
Abstract Crop landraces have unique local agroecological and societal functions offer important genetic resources for plant breeding. Recognition of the value landrace diversity concern about its erosion on farms led to sustained efforts establish ex situ collections worldwide. The degree which these succeeded in conserving has not been comprehensively assessed. Here we modelled potential distributions eco-geographically distinguishable groups 25 cereal, pulse starchy root/tuber/fruit crops...
The International Institute of Tropical Agriculture maintains the world's largest collection cowpea germplasm over 15,000 accessions. A sub-set 298 lines from loosely composed mini core 370 landraces were genotyped based on genotyping by sequencing (GBS). Ward's minimum variance hierarchical cluster analysis, model-based ancestry analysis and discriminant principal component (DAPC) carried out this sub-set. Three clusters identified different clustering methods. Principal further supported...
Adopting underutilized legumes in tackling food security is essential, especially this era of climate change. Underutilized are embedded with inherent potentials such as the ability to survive extreme conditions (such temperature, drought, pH, saline, etc.), high nitrogen-fixing potential, weed and disease control ability, nutrient status. can improve yield companion crops an intercropping system a subsequent crop (due their residual effects). They possess symbiotic non-symbiotic organisms...
Many people in sub-Saharan Africa suffer from protein malnutrition; this results negative health and economic impacts. Winged bean ( Psophocarpus tetragonolobus (L.) DC.) is a tropical underutilized legume with beneficial nutritional characteristics such as high content, which may help to alleviate these problems. The proximate composition (fat, moisture crude protein, ash, carbohydrate) antinutrient (tannin phytate) level of winged seeds tubers were determined using 50 accessions. In the...
In plant breeding and agricultural research, biplot analysis has become an important statistical technique. The goal of this study was to find the winning genotype(s) for test settings in a part Southwest region Nigeria, as well investigate nature extent genotype × environment interaction (GEI) effects on Bambara groundnut (BGN) production. experiment carried out four environments (two separate sites, Ibadan Ikenne, two consecutive years, 2018 2019) with ninety-five BGN accessions. According...
Biplot analysis has emerged as a crucial statistical method in plant breeding and agricultural research. The objective of this research was to identify the best-performing genotype(s) for environments three distinct regions Nigeria while also examining characteristics magnitude genotype–environment interaction (GEI) effects on yield Bambara groundnut (BGN). study conducted Ibadan, Ikenne, Mokwa, utilizing sample 30 accessions. BGN found be significantly affected by accessions, environment,...
Abstract African yam bean (AYB) is an underutilized legume with significant potential for food security in sub-Saharan Africa, yet limited research exists on optimizing its seed yield through selective breeding. In this study, the (SY) performance and relative importance of some yield-related traits SY AYB were assessed. One hundred ninety-six accessions evaluated 2 years three agro-ecologies Nigeria. The experimental design was a 14 × lattice replicates. Data recorded 13 SY-related traits....
Abstract Seed (gene)banking is an effective way to conserve cultivated and wild plant diversity. However, long-term funding not always consistently sufficient, there a need both strengthen the effectiveness of genebank operations maximize cost efficiency. One control maintaining germplasm collection optimize quantity seeds per accession that placed into storage, depending on expected length time seed lot will remain above viability threshold, rates use for distribution testing requirement...
Abstract Underutilized, or orphan legumes, are widely distributed across farming landscapes in sub‐Saharan Africa (SSA) but often have low yields and do not fulfill their potential due to very limited research, breeding, development, marketing, awareness of benefits. These advantages include nutritional quality climate resilience. In this review, we focus on Bambara groundnut, African yam bean, Kersting's groundnut. Knowledge the challenges rewards exploiting them will provide opportunities...
Bambara groundnut (BGN) is a drought-tolerant crop majorly cultivated in sub-Saharan Africa. Due to lack of extensive research, marginalization, awareness, and available fund among others, this crop's improvement has been limited. The development depends on evaluation selection unique stable breeding lines different environments. This study aims estimate genetic diversity using morphological traits at locations 95 accessions BGN collected from the Genebank International Institute Tropical...
Introduction Bambara groundnut (BG) (Vigna subterranea [L.] Verdc) is an indigenous, resilient, but underutilized leguminous crop that occurs mostly as genetically heterogeneous landraces with limited information on the drought tolerant attributes. This study elucidates associations between sequencing-based diversity array technology (DArTseq) and phenotypic character well differing indices related to tolerance in one hundred accessions of groundnut. Methods The field experiments were...
Cowpea is a highly drought-adapted leguminous crop with great promise for improving agricultural sustainability and food security. Here, we report analyses derived from array-based genotyping of 2,021 accessions constituting core subset the world's largest cowpea collection, held at International Institute Tropical Agriculture (IITA) in Ibadan, Nigeria. We used this dataset to examine genetic variation population structure worldwide cowpea. confirm that primary pattern two geographically...
Genebanks underpin global food security, conserving and distributing agrobiodiversity for use in research breeding. The CGIAR collections include >700,000 seed accessions, held trust as public goods. However, the role of genebanks contributing to security can only be realized if are effectively managed. Examination historical viability monitoring data from seven confirmed that high was maintained many decades various crops forage species. departures optimum management procedures were...
This study was set up to compare the inoculation of Bradyrhizobium japonicum strains and application nitrogen (N) fertilizers (urea with 46% nitrogen) on growth yield Bambara groundnut accessions. The results suggest that benefits ( B. ) strain are greater could reduce reliance excess amount spent by farmers procure inorganic avoid negative effect N fertilizer environment after its use. Field studies were conducted in two different geographical locations, Ibadan (Ib) Ikenne (Ik), Nigeria,...
African yam bean, AYB ( Sphenostylis stenocarpa Hochst. ex. A. Rich Harms), is a tuberous legume of tropical Africa. has the potential to significantly boost food security due its considerable nutritional qualities. However, crop underutilized. To efficiently utilize genetic resources for improvement, it necessary understand crop's diversity. This study investigated amplification ability 36 cowpea simple sequence repeat (SSR) primers across genomic DNA, extracted from 67 accessions. Thirteen...
African yam bean ( Sphenostylis stenocarpa (Hochst ex. A. Rich.) Harms) is an annual legume with the capacity to produce seeds in a pod and tubers varying seed patterns colors. It suggested have potential significantly boost food security sub-Saharan Africa due its considerable nutritional qualities but still yet underutilized. Many farmers show limited interest production owing knowledge of profile, income generation for small-holder farmers’, processing, other related utilization concerns....
In Sub-Saharan Africa (SSA), both crop production and the hidden hunger index (HHI, a combination of zinc, iron, vitamin A deficiency), continue to be worse than rest world. Currently, 31 out 36 countries SSA show highest HHI. At same time, several studies climate change as major constraint agriculture productivity significant threat food security without action regarding adaptation. The is dependent on few crops, with many them providing largely only an energy source in diet. To address...
Seed size is an important yield and quality-determining trait in higher plants also crucial to their evolutionary fitness. In African yam bean (AYB), seed varies widely among different accessions. However, the genetic basis of such variation has not been adequately documented. A genome-wide marker-trait association study was conducted identify genomic regions associated with four traits (seed length, width, thickness, 100-seed weight) a panel 195 AYB total 5416 SNP markers were generated...
Landraces are repositories for potential beneficial traits which could be used to develop varieties with enhanced qualities. Optimal utilization of the available large collection landraces African yam bean (AYB) presently conserved at Genetic Resource Center, International Institute Tropical Agriculture, Ibadan (GRC-IITA), requires an assessment magnitude and nature genetic diversity within germplasm. One hundred ninety-six AYB accessions were evaluated during 2018 2019 cropping seasons in...
ABSTRACT African yam bean (AYB; Sphenostylis stenocarpa Hochst. Ex A. Rich.) is an underutilized legume indigenous to Africa. The crop has great potential as it can enhance food security and its chemical composition offers nutritional medicinal opportunities. However, the low grain yield caused by fungal diseases, including pod blight leaf tip dieback, deters farmers from large-scale cultivation. causal agents of dieback on AYB are largely uncharacterized. To determine prevalence diseases...