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India experienced a rapid rise in COVID-19 infections from March 2021. States imposed varying levels of lockdowns and curfews to curb the spread of the disease. These restrictions severely affected the functioning of food systems. The objective of this study was to analyze how COVID-19 continues to affect agricultural production, food security and household diets of vegetable farmers. A phone-based survey was conducted with 595 vegetable farmers in the states of Andhra Pradesh, Assam, Jharkhand, Karnataka and Odisha, 60% of whom had been interviewed a year earlier. Overall, 60% of farmers experienced decreased vegetable production; over 80% reported a reduction in consumption of at least one food group; and 45% reported some level of food insecurity between May 2020 and May 2021. Farmers who reported decreased staples production, difficulty accessing seeds/seedlings, or reduced their household spending were more likely to report decreased vegetable production. Vegetable consumption was positively associated with receipt of COVID-19 relief benefits, borrowing money, or having home gardens. Farmers who received public agricultural assistance, or had reduced expenses, were more likely to have lower vegetable consumption. Greater severity of food insecurity was associated with farmers belonging to underprivileged social groups, non-Hindus, or those who experienced decrease in livestock production, weather related disruptions or received COVID-19 assistance. This is one of few studies that have conducted a longitudinal assessment of the impacts across multiple waves of COVID-19. COVID-19 is seen to be one among several shocks experienced by farm households, and exacerbated existing issues within agriculture and food security. There is a need for public policy support to strengthen both production and consumption of vegetables., Competing Interests: The authors declare no competing interests., (Copyright: © 2023 Kumar et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)

Background: Vegetables are an essential element in healthy diets, but intakes are low around the world and there is a lack of systematic knowledge on how to improve diets through food system approaches., Methods: This scoping review assessed how studies of food systems for healthy diets have addressed the role of vegetables in low- and middle-income countries. We apply the PRISMA guidelines for scoping reviews to narratively map the literature to an accepted food systems framework and identify research gaps., Results: We found 1383 relevant articles, with increasing numbers over 20 years. Only 6% of articles looked at low-income countries, and 93% looked at single-country contexts. Over half of articles assessed vegetables as a food group, without looking at diversity within the food group. 15% looked at traditional vegetables. Issues of physical access to food were among the least studied food system topics in our review (7% of articles). Only 15% of articles used a comprehensive food system lens across multiple dimensions. There is also a research gap on the impacts of different policy and practice interventions (13% of articles) to enable greater vegetable consumption., Conclusions: Food system studies necessarily drew on multiple disciplines, methods and metrics to describe, analyze, and diagnose parts of the system. More work is needed across disciplines, across contexts, and across the food system, including understanding interventions and trade-offs, and impacts and change for diets particularly of marginalized population groups. Filling these gaps in knowledge is necessary in order to work toward healthy vegetable-rich diets for everyone everywhere.

This study announces the genome sequence of the Shigella flexneri MTR_GR_V146 strain isolated from a tomato (Solanum lycopersicum) sample in Bangladesh. This strain has a 4,624,521 bp genome length (coverage: 73.07×), 2 CRISPR arrays, 1 plasmid, 52 predicted antibiotic resistance genes, and 53 virulence factor genes.

Reports indicate that vegetables are becoming a source of multidrug-resistant (MDR) bacteria, including Escherichia coli. Here, we present genome sequences of five MDR E. coli strains to assist future genomic analysis of this bacterium. These E. coli strains were isolated from vegetable samples of different gardening systems in Dhaka, Bangladesh.

Background: Integrated school and home garden interventions can improve health outcomes in low-income countries, but rigorous evidence remains scarce, particularly for school-aged children and to reduce anemia. Objective: We test if an integrated school and home garden intervention, implemented at pilot stage, improves hemoglobin levels among school children (aged 9-13 years) in a rural district in the mid-hills of Nepal. Methods: We use a cluster randomized controlled trial with 15 schools each in the control and treatment groups (n = 680 school children). To test if nutritional improvements translate into a reduction of anemia prevalence, hemoglobin data were collected 6 months after intervention support had ended. Using structural equation modeling, we estimate the direct and indirect effects of the treatment through several pathways, including nutritional knowledge, good food and hygiene practices, and dietary diversity. Results: The integrated school and home garden intervention did not lead to a direct significant reduction in anemia. Causal positive changes of the treatment on nutritional outcomes, although significant, are not strong enough to impact hemoglobin levels. The program improved hemoglobin levels indirectly for children below 12 by increasing the use of good food and hygiene practices at home. These practices are associated with higher hemoglobin levels, particularly for girls, young children, and in households where caregivers are literate. Conclusions: Even integrated school and home garden interventions are not sufficient to reduce anemia among school children. Incorporating behavioral change components around food and hygiene practices into integrated garden interventions is important to unlocking their health impacts. Plain language title: Effect of a Joint School and Home Garden Programme on Child Health Among School-Aged Children in Nepal Plain language summary: The effects of agricultural and nutritional support programs on health are not fully understood. This article looks at school and home gardens, which are gaining attention in the research and development community, but evidence for their effects is limited, particularly for lower-income countries. We examine whether a joint school and home garden program improves blood iron levels among school children (aged 9-13 years) in rural Nepal. Low levels are an indicator for anemia—a common nutritional disorder in South Asia. Our data come from an experiment involving 30 schools and 680 children and was measured via a finger prick method 6 months after program support ended. We also evaluate if the program influenced blood iron levels through the nutritional knowledge of children and their caregivers; through the use of good food and hygiene practices at home and the children's dietary diversity. Our results indicate that the program did not lead to a direct reduction in anemia. However, for children under the age of 12, the program indirectly improved blood iron levels through behavioral changes in the use of good food and hygiene practices (e.g., washing hands before eating). We therefore argue that including education on nutrition and good food and hygiene practices as part of integrated garden support programs is key to improving children's health. [ABSTRACT FROM AUTHOR]

Increasing vegetable consumption is being promoted as a critical step towards more nutritious and sustainable diets. Despite the recognition that context shapes food consumption practices, there have been limited systematic analyses of the role of social institutions in enabling or hindering consumption of vegetables. In particular, we focus on cultural, cognitive, socioeconomic, and contextual influences that shape local understandings, attitudes, and practices surrounding health and wellbeing. We seek to address this knowledge gap by exploring whether and how academic research has engaged this issue, with a particular focus on Africa. The analysis finds that a range of social institutions play a role in shaping vegetable consumption. Most publications focus on cultural norms and personal perceptions and beliefs, the latter also reflecting one's cultural conditioning and social positioning. Contextual factors such as education and economic status have been reported as having either positive or negative effects on vegetable consumption, depending on context. In terms of types of vegetables affected, traditional vegetables are featured more frequently rather than exotic (externally introduced) ones. The results of this analysis may contribute to informing agricultural and food security policies and programs aimed at promoting vegetable consumption in Africa. • Vegetable demand in Africa depends on cultural norms, on personal perceptions and beliefs. • Education and environmental factors have also a positive effect on vegetable demand. • Social norms influence the demand for traditional vegetables more than exotic vegetables. • Social institutions must be articulated in programs promoting food security. [ABSTRACT FROM AUTHOR]

Genebanks explore new partnerships with farmers and other user groups to provide smallholder farmers in Africa better access to crop diversity for improved nutrition, climate change adaptation and agricultural diversification. This paper shows how the World Vegetable Center (WorldVeg) genebank of traditional African vegetables and its partners distributed over 42,000 seed kits containing over 183,000 vegetable seed samples from 2013 to 2017 to smallholder farmers in Tanzania, Kenya and Uganda. The seed kits contained seed samples of promising accessions and open-pollinated breeding lines of traditional African vegetables, and to a lower degree of tomato, Capsicum pepper and soybean, usually enough to plant in a home garden. We identified four research questions to better understand the role of vegetable seed kits in strengthening local seed systems, impact on local vegetable diversity, improving human nutrition and supporting climate-resilient agriculture. As formal seed systems expand their reach, the genebank's role to supply vegetable diversity to public and private breeding programmes becomes more important. To optimize supply of vegetable diversity, the WorldVeg genebank of traditional African vegetables continues working with partners in both formal and local seed systems. [ABSTRACT FROM AUTHOR]

Highlights • We quantify adoption of improved amaranth varieties and good agronomic practices for East Africa. • Data collected using expert elicitation and a questionnaire survey of seed companies. • Improved varieties adopted on 51% of planted area in Kenya and 70% in Tanzania. • World Vegetable Center germplasm is found on 46% of planted area and in 59% of seed company sales. • Center's amaranth lines reach about 231,000 farm households in Kenya and Tanzania. Abstract This study quantifies the adoption of improved amaranth varieties in Kenya and Tanzania, and the extent to which these result from international vegetable breeding research conducted by the World Vegetable Center (WorldVeg) and partners. The study used expert elicitation and a questionnaire survey among vegetable seed producers. Nine expert panels were conducted involving 123 local experts. The results show that improved amaranth varieties were planted on 51% of the planted area in Kenya and 70% in Tanzania. Improved varieties were planted on 17,502 ha and reached 404 thousand smallholder farmers. WorldVeg is the main source of improved varieties, reaching 231 thousand farm households in Kenya and Tanzania. Seed companies sold 2.9 tons of amaranth seed in 2016 and 59% of this was WorldVeg-based germplasm. Opportunities exist to improve amaranth production through the development and promotion of better varieties (particularly resistance to white rust and leaf spot) and good agronomic practices (particularly the use of certified seed, mineral fertilizers, seed treatment and nurseries). Investment in amaranth research and development will contribute to better livelihoods and better nutrition in sub-Saharan Africa. [ABSTRACT FROM AUTHOR]

There is a lack of evidence for impact at scale of vegetable research and development, although the importance of vegetables for human nutrition and smallholder incomes is generally understood. We therefore study adoption and impact of improved tomato and African eggplant varieties developed through international agricultural research, released by national agricultural research and extension systems, and supplied to farmers by private seed companies in East and Southern Africa from 1990 to 2014. The study finds that in 2014, varieties developed by the World Vegetable Center accounted for 50% of tomato and 98% of African eggplant commercial seed production in East and Southern Africa. For Tanzania alone, investment in crop improvement generated economic gains of US$ 255 million for tomato and US$ 5 million for African eggplant up to 2014. The internal rate of return is 26% for tomato and 12% for African eggplant, though we project the latter to increase to 26% by 2024 as the variety was released only in 2007. These findings support the view that agricultural policy and investment reoriented towards contemporary nutritional challenges will give high returns to investment. [ABSTRACT FROM AUTHOR]

• There is a lack of evidence for impact of home garden interventions in Africa. • We analyzed the impact of a home garden project in Kenya, Tanzania and Uganda. • Results show only weak effects on household vegetable production. • Results show no significant effect on vegetable consumption in the month of the survey. • There is a need to better understand barriers to home garden interventions in Africa. Sub-Saharan Africa has the lowest per capita consumption of vegetables of all regions in the world. As low vegetable consumption is associated with poor human health, there is need for effective policies and interventions to increase it. Home garden interventions have proven effective in several countries in Asia, but evidence from large trials is scant in Africa. Using data from a home garden promotion project in Kenya, Tanzania and Uganda, this study tests the hypothesis that home garden interventions, offered to rural households with women 14–35 years of age and/or with children under five years of age, increase household production and consumption of vegetables. Three randomized controlled trials collected pre- and post-intervention data (2 years apart) for 1,255 intervention and control households. We report intent-to-treat effects and the treatment effect on the treated and analyze distributional effects using quantile regression. For Tanzania, the results show a 20% increase in households producing vegetables and an additional two months of vegetable harvesting, but no such significant effects were found for Kenya and Uganda. We find no significant effects on diets. Lack of impact may be explained from the fact that many participating households were already producing vegetables (reducing the scope for impact) and a low participation rate of selected households in training events. These results stand in contrast to the positive impacts of home garden interventions in Asia. The results suggest a need to better understand barriers to home garden interventions in the three countries and a need for more careful design, local adaptation and targeting. [ABSTRACT FROM AUTHOR]

The COVID-19 pandemic has particularly affected the supply of perishable foods such as vegetables, which could adversely affect food and nutrition security. Here, we study the mechanisms by which COVID-19 has affected vegetable production and the coping strategies adopted by smallholder farmers. We use cross-sectional data collected through individual interviews on a random sample of 521 vegetable producers in north-western Nigeria. The perceptions of respondents, measured on a 5-point Likert scale (from 1—not affected, to 5—severely affected), shows that COVID-19 had an average effect of 3.07 (±1.23) on vegetable production. Farmers also reported challenges in accessing farm inputs and storing or selling fresh vegetable produced. In response, farmers reduced market-oriented vegetable production, produced more vegetables for own consumption, added value through own home processing and storage, explored new markets, and accepted lower farmgate selling prices. A multivariate probit regression shows that socio-economic factors such as age, household size, marital status, challenges in accessing inputs, and perceptions of the effects of COVID-19 influenced farmers' decisions to adopt particular coping strategies. To sustain vegetable supplies, policy makers should consider investing more in market-oriented strategies such as vegetable processing and storage, which individual farmers may not be able to afford due to high costs, lack of information and required knowledge on good agronomic practices, postharvest handling, storage and market. Public extension services can contribute to help farmers to adapt better. [ABSTRACT FROM AUTHOR]

The mission of the World Vegetable Center (WorldVeg) is research and development to realize the potential of vegetables for healthier lives and more resilient livelihoods. WorldVeg operates across Asia and Africa, and its breeding portfolio comprises global as well as traditional vegetables. Cucurbit crops make an important contribution to global food and nutrition security and are economically important to smallholder farmers in Asia, who account for 83% of global cucurbit production. The global cucurbit breeding program of WorldVeg focuses on four species: bitter gourd (Momordica charantia), tropical pumpkin (Cucurbita moschata), ridge gourd (Luffa acutangula), and sponge gourd (Luffa cylindrica syn. L. aegyptiaca). Improved cultivars have been developed by the private seed industry, however, repeated recycling of lines derived from elite hybrids has narrowed the genetic base and reduced genetic gains for yield and other key traits. This trend will continue unless a concerted effort is made to introduce new genetic variability into elite hybrids. WorldVeg has organized a breeding consortium with seed companies to facilitate access to the Center's new breeding lines derived from hitherto unexploited landraces to develop genetically diverse, improved cucurbit cultivars with enhanced yield and resistance to major diseases. Through this partnership, WorldVeg presents its improved lines and F1 hybrids at Crop Field Days for selection by private seed industry staff engaged in breeding, product development, and sales and marketing. [ABSTRACT FROM AUTHOR]

This paper quantifies the extent of pesticide overuse in vegetable production systems in Southeast Asia. Pesticide overuse was defined as levels of use in excess of an economic (profit-maximizing) optimum. A production function with an exponential damage abatement term was estimated. Data come from a representative sample of 1000 farmers producing leaf mustard and yard-long bean in Cambodia, Laos and Vietnam. The results show that 100% of the sampled farmers in Vietnam, 73% in Cambodia and 59% in Laos overused pesticides. Pesticide expenditure in excess of the economic optimum was 96% for Vietnam, 92% for Cambodia, and 42% for Laos. Pesticide overuse was positively associated with men in charge of pest management decisions, farmers seeking advice from pesticide sellers and a strong belief that pesticides are effective. It was negatively associated with the use of non-chemical methods of pest control. These results imply that farmers in Southeast Asia are spraying excessively and inefficiently and could increase their profits by applying fewer pesticides. • We quantify pesticide overuse in vegetable production in Cambodia, Laos and Vietnam. • Production function with damage control term was estimated with data for 1000 farms. • 77% of farmers overused pesticides; 77% of pesticide expenditures are overuse. • Greater overuse was observed among male applicators. • Greater overuse was also observed where pesticide sellers advised farmers. [ABSTRACT FROM AUTHOR]