Breeding Potentials of Bambara Groundnut for Food and Nutrition Security in the Face of Climate Change

Constant production of quality food should be a norm in any community, but climate change, increasing population, and unavailability of land for farming affect food production. As a result, food scarcity is affecting some communities, especially in the developing world. Finding a stable solution to this problem is a major cause of concern for researchers. Synergistic application of molecular marker techniques with next generation sequencing (NGS) technologies can unlock the potentials hidden in most crop genomes for improving yield and food availability. Most crops such as Bambara groundnut (BGN), Winged bean, and African yam bean are underutilized. These underutilized crops can compete with the major crops such as cowpea, soybean, maize, and rice, in areas of nutrition, ability to withstand drought stress, economic importance, and food production. One of these underutilized crops, BGN [Vigna subterranea (L.), Verdc.], is an indigenous African legume and can survive in tropical climates and marginal soils. In this review, we focus on the roles of BGN and the opportunities it possesses in tackling food insecurity and its benefits to local farmers. We will discuss BGN’s potential impact on global food production and how the advances in NGS technologies can enhance its production.

Exploring the effects of increasing underutilized crops on consumers’ diets: the case of millet in Uganda

Known in the literature as underutilized, neglected or orphan crops, these crops have been cited as having the potential to improve food and nutritional security. The literature also highlights however that consumers in developing countries are increasingly abandoning their traditional diets that these crops are part of, and are replacing them by western diets. In this context, the purpose of this paper is to investigate the consumption and nutritional implications of expanding the participation of underutilized crops in current diets. This was done using a modified version of the microeconomic consumer problem. This was augmented with a linear constraint using generalized rationing theory that can be found in the economics literature. The method was applied to the case study of the consumption of millet (finger millet, botanical name: Eleusine coracana) by rural, urban-poor and urban-affluent Ugandan socioeconomic groups. The results indicated that millet could contribute to improving the intake of macronutrients and of some micronutrients, though the overall picture is complex. However, under current preferences and given its demand inelasticity, to achieve a substantial increase in the quantity of millet in the diet will require a significant reduction of its price. Otherwise, the net impact on nutrition as measured by the mean adequacy ratio will be only slightly positive for rural and urban-poor households. Our findings indicate that supply-side initiatives aimed at increasing the productivity of underutilized crops (reducing crop price) are likely to produce disappointing results in restoring their importance unless accompanied by specific interventions to expand demand.

Millets as Nutre Cereals

Among the growing population (136.64 crs as per2019) many people experience scarcity of food and all. In the 2020 Global Hunger Index, India ranks 94th out of the 107 countries with sufficient data to calculate 2020 GHI scores. With a score of 27.2, India has a level of hunger that is serious (www.un.org/). The United Nations (UN) Food and Agriculture Organization (FAO) predicts that the on-going COVID-19 pandemic will increase this number as developing countries are double-hit by disease and hunger (www.fao.org/2019-ncov/q-and-a/) Disruptions in global supply chains, economic consequences (i.e., loss of jobs and incomes), the ban on the export of agricultural commodities, and price increases are the major reasons for this crisis. Although much attention is being given to the development of vaccines, therapeutic molecules, and preventive measures to combat COVID-19, the invisible threat to the lives and livelihoods of marginal populations through hunger and malnutrition remains largely unaddressed. The focus of the 2019 Global hunger index on ‘The Challenge of Hunger and Climate Change’ underlines the impacts of changing climates on agriculture that include crop failures owing to problems such as seasonal fluctuations, increased insect and pest attacks, and broad-spectrum infection by potential pathogens (www.globalhungerindex.org/).Supplying food grains is an immediate measure to aid the affected population, whereas devising long-term plans to prevent such challenges is the need of the hour. That said, the possibility of a second and third wave of COVID-19 in the near future should not be ignored. In such a case, the UN World Food Programme predicts (UN-WFP; https://insight.wfp.org/) that death due to lack of food would outnumber deaths caused by disease infection. The importance of crop diversity and of mainstreaming underutilized crops that could serve as functional foods has been pointed out before; however, identifying the best candidates of underutilized crops and deploying crop improvement strategies to release better varieties is still in a nascent stage. Mayes et al. Other plant species, including tubers, legumes, and leafy vegetables, also fall within the criteria of underutilized species; however, emphasis is given to small millets because they are capable of reducing the overdependence on major cereals. Three major cereals, namely rice, wheat, and maize, cater for up to 60% of the global food requirements, and this is one of the plausible causes of food and nutritional inadequacies in the hunger hotspots where these crops are largely imported for consumption. Millets, although cultivated marginally in those regions, have the potential to address these inadequacies if their area of cultivation is increased and crop improvement strategies are devised and deployed.

Ethnobotanical study of pumpkin (Cucurbita moschata Duchesne) landraces in Benin

Background Pumpkin, Cucurbita moschata Duchesne, is important food resource due to their nutritional composition. Despite their food advantages, they still remain underutilized crops in Africa and particularly in Benin. No documented information is available on the knowledge of producers on the use, conservation and commercialization of Cucurbita moschata. The objectives of this study are to (i) collect various accessions of pumpkin on the basis of local taxonomic criteria in Benin; (ii) collect information on uses of pumpkin in Benin. To this end, an investigation was carried out in the departments of Couffo (Dogbo, Djakotomey, Klouékanme and Aplahoué) and Borgou (Parakou and N’dali). Methods One hundred twenty (120) farmers grouped into 06 different ethnic groups (Adja, Bariba, Bialy, Fon, Gourmantché and Zarma) were interviewed. Six pumpkin landraces were identified in 19 villages surveyed through systematic census of farmers supported by the snowball technique. Results Varietal diversity on a municipal level varied from two to four. Pumpkin was mainly cultivated by men and about 15% were cultivated in cultural association with maize, cassava, cowpea and groundnut. The harvested fruits were used for consumption, commercial, therapeutic and occult purposes. However, about 48% of producers have abandoned its production mainly due to production and marketing constraints. This abandonment could induce a risk of genetic erosion of this species. Thus, the conservation and an enhancement of the genetic resources of this species is essential. Conclusions This study made it possible to establish farmers’ knowledge on the utilization and production of pumpkin landraces, and identify the varietal diversity of Benin landraces of pumpkin.

Physical and Structural Characterization of Underutilized Climate-Resilient Seed Grains: Millets, Sorghum, and Amaranth

While the world is facing food and nutritional challenges leading to the multifaceted burden of malnutrition (underweight and overweight), there is a need to sustainably diversify and explore underutilized crops. Climate-resilient crops, which have the potential to withstand climate crises, have drought resistance, and provide healthy foods with essential vitamins and minerals. Ancient seed grains like amaranth, millets, and sorghum are highly nutritious seed grains that are underutilized, and there is a need for comprehensive research into their properties. This study will specifically investigate amaranth alongside barnyard, finger, kodo, little, pearl, proso millets, and sorghum. Physical and structural properties of the ancient seed grains can provide useful data for storage and food processing. The angle of repose, porosity, and water activity of the grains varied from 19.3° to 23.9°, 3.6 to 17.4%, and 0.533 to 0.660 at 25.5°C, respectively. Additionally, Scanning Electron Microscopy (SEM) was used to observe the surface characteristics and overall shape of each grain. SEM images of the millets shows the impact of dehulling on the surface morphology of the grains (little, barnyard, proso, and kodo millets). This calls for research and development of novel food processing technologies to minimize loss and damage during processing of climate-resilient crops.