Sustainable Production of Roots and Tuber Crops for Food Security under Climate Change

Taylor, Mary; Lebot, Vincent; McGregor, Andrew; Redden, R. J.

doi:10.1002/9781119180661.ch15

Cited by 17 publications

(11 citation statements)

References 47 publications

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“…This analysis showed that cocoyam requires very specific environmental and edaphic factors, which are found in specific areas of the country. The finding that cocoyam is more influenced by temperature factors corroborates the assertion that it is a temperature sensitive crop (Taylor et al 2019). This also explains why cocoyam is also commonly produced under shade trees (Oke et al 1990;Thiele et al 2017) where the temperature regimes are regulated by the overhead canopy.…”

Section: Discussionsupporting

confidence: 64%

“…Root and tubers are the second most important group of food crops in the developing world after cereals, contributing to diets of over 2 billion people across the tropics and subtropics with annual production of about 800 million tons (FAOSTAT 2016;Taylor et al 2019). This is because these roots and tubers are preferred as traditional crops favoured for their adaptability to local environs, their ability to fit long-held culinary practices and dietary requirements and their compatibility with other crops in common crop diversity systems (Ray and Sivakumar 2009;Valenzuela and Defrank 1995).…”

Section: Introductionmentioning

confidence: 99%

“…Cocoyam (also referred to as arroid or arrowroot) is a perennial herbaceous plant with thick, fleshy and creeping roots and long white fibres belonging to the monocotyledonous family Araceae and are a staple in many parts of the developing world (Ray and Sivakumar 2009). Cocoyam is one of the most important traditional tropical root crops, being the fifth most produced root crop in the world with over 12 million tons of production annually (Taylor et al 2019). It is mainly grown in tropical Africa, China, New Guinea and the Pacific islands for its starchy corms, although leaves and flowers are also consumed as vegetables or medicines (Akwee et al 2015;Kaushal et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…To meet the temperature and rainfall requirements, cocoyam is often planted under permanent plantations like banana, coconut, citrus, oil palm, cocoa and other agroforestry systems in many countries. According to Taylor et al (2019), the agro-ecological range of cocoyam will shift under climate change because the crop prefers wet, humid environment with little to no ability to tolerate drought. This was confirmed by a modelling study by Kodis et al (2018) who concluded that potential for cocoyam production will be drastically reduced in Hawaii especially under high emission scenarios.…”

Section: Introductionmentioning

confidence: 99%

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Climate change and cocoyam (Colocasia esculenta (L.) Schott) production: assessing impacts and potential adaptation strategies in Zimbabwe

Chemura

Kutywayo

Hikwa

et al. 2022

Mitig Adapt Strateg Glob Change

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Tropical root and tuber crops such as cocoyam (Colocasia esculenta (L.)) are important for food security and livelihoods and yet neglected in climate change impact studies and large-scale crop improvement programs. The aim of this study was to apply the maximum entropy modelling approach to assess production potential for the orphan crop cocoyam under current and projected climatic conditions by 2050 and 2070 in Zimbabwe. A robust model fit was achieved (AUC > 0.9) with variable importance showing that precipitation-related factors were most important in determining the suitability of cocoyam. About 4.3% of the country is suitable for cocoyam production in Zimbabwe under current climatic conditions with the most suitable areas in eastern districts of Chipinge, Chimanimani, Mutare, Mutasa, Nyanga and Makoni. By 2050, model means project a decrease of 6%, 9%, 10% and 15% under RCP2.6, RCP4.5, RCP6.0 and RCP8.5, respectively. More drastic decreases are projected by 2070 with almost a quarter (23%) of the current suitable areas having lost their suitability for cocoyam production. There is a general model agreement in the direction of impacts except for RCP2.6 where CCSM4 model projects increases in suitability for cocoyam in the country while other models project decreases. We find that regulating canopy microclimate variation increases potential for cocoyam production under climate change and can be implemented to ensure resilience of cocoyam production systems. Therefore, stabilizing or improving orphan crops systems will substantially contribute to local food security and reduction of malnutrition especially during the lean season.

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Section: Discussionsupporting

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Climate change and cocoyam (Colocasia esculenta (L.) Schott) production: assessing impacts and potential adaptation strategies in Zimbabwe

Chemura

Kutywayo

Hikwa

et al. 2022

Mitig Adapt Strateg Glob Change

View full text Add to dashboard Cite

show abstract

“…This root crop can remain underground for up to 30 or more years, and therefore provide nutrition during climatic exigencies (FAO 2010 ). The plant can withstand cyclones and storms with limited wind damage (Pobar et al 2014 ; Taylor et al 2019 ), and can also tolerate high soil moisture levels or flooding as long as it is not inundated by saltwater (Plucknett 1977 ; Thomas 2019 ). In the island of Nukulaelaethere, Tuvalu, during the 2010–2011 drought, there was a huge decline in the growth of giant swamp taro and some pulaka pits were devastated with rotting corms since prolonged dry spells increased soil salinity (Tekinene 2014 ) (Table 2 ).…”

Section: Impacts Of Climate Change On Some Major Pacific Crops and Brmentioning

confidence: 99%

Unlocking the inherent potential of plant genetic resources: food security and climate adaptation strategy in Fiji and the Pacific

Palanivel

Shah

2021

Environ Dev Sustain

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Pacific Island Countries (PICs) are the center of origin and diversity for several root, fruit and nut crops, which are indispensable for food security, rural livelihoods, and cultural identity of local communities. However, declining genetic diversity of traditional food crops and high vulnerability to climate change are major impediments for maintaining agricultural productivity. Limited initiatives to achieve food self-sufficiency and utilization of Plant Genetic Resources (PGR) for enhancing resilience of agro-ecosystems are other serious constraints. This review focuses on the visible and anticipated impacts of climate ge, on major food and tree crops in agriculture and agroforestry systems in the PICs. We argue that crop improvement through plant breeding is a viable strategy to enhance food security and climatic resilience in the region. The exploitation of adaptive traits: abiotic and biotic stress tolerance, yield and nutritional efficiency, is imperative in a world threatened by climatic extremes. However, the insular constraints of Fiji and other small PICs are major limitations for the utilization of PGR through high throughput techniques which are also cost prohibitive. Crop Improvement programs should instead focus on the identification, conservation, documentation and dissemination of information on unique landraces, community seed banks, introduction of new resistant genotypes, and sustaining and enhancing allelic diversity.

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Expanding our food supply: underutilized resources and resilient processing technologies

Knorr,

Augustin

2024

J Sci Food Agric

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Many underutilized food resources have been traditionally used by regional and poor communities. The history of their consumption makes them potential new food sources for incorporation into the wider food supply. The ability to tap the potential of undervalued and underutilized food sources will reduce the world's reliance on a limited number of food sources and improve food security and sustainability. The expansion of the food diversity of the food supply to include underutilized food resources will require overcoming challenges in the efficient and profitable production of the raw material, application of suitable postharvest handling procedures to maintain the quality of perishable produce, and the use of appropriate traditional and emerging food processing technologies for conversion of the raw material into safe, nutritious and consumer‐acceptable foods. Improvement of food processing technologies, particularly resource‐efficient resilient food processes, are required to ensure the safety, quality and functionality of the whole food or extracts, and to develop ingredient formulations containing new foods for manufacture of consumer food products. Factors that help facilitate the social acceptance of new underutilized foods include increasing consumer knowledge and understanding of the contribution of new underutilized food resources to diet diversity for good nutrition, confidence in the safety and value of new foods, and their low environmental impact and importance for future sustainable food. The introduction of new underutilized food resources will increasingly require collaboration along the whole food value chain, including support from government and industry. © 2024 The Author(s). Journal of the Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Sustainable Production of Roots and Tuber Crops for Food Security under Climate Change

Cited by 17 publications

References 47 publications

Climate change and cocoyam (Colocasia esculenta (L.) Schott) production: assessing impacts and potential adaptation strategies in Zimbabwe

Climate change and cocoyam (Colocasia esculenta (L.) Schott) production: assessing impacts and potential adaptation strategies in Zimbabwe

Unlocking the inherent potential of plant genetic resources: food security and climate adaptation strategy in Fiji and the Pacific

Expanding our food supply: underutilized resources and resilient processing technologies

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