Is Cassava the Answer to African Climate Change Adaptation?

Jarvis, Andy; Ramírez-Villegas, Julián; Campo, Beatriz Vanessa Herrera; Navarro-Racines, Carlos Eduardo

doi:10.1007/s12042-012-9096-7

Cited by 334 publications

(293 citation statements)

References 85 publications

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“…Increasing carbon dioxide (CO 2 ) concentrations can have a fertilization effect and some locations will show higher rainfall, but increased heat or drought can adversely impact yield. Jarvis et al (2012) used different global climate change models linked with the Ecomodel of crop suitability and parameters of major staples in SSA. Potato was one of the crops that showed the greatest negative effects -crop suitability declined (−14.7% ± 8.2) by 2030, along with beans (−16% ± 8.8), probably because they occupy similar highland climatic niches.…”

Section: Step 1 Looking Into the Futurementioning

confidence: 99%

Roots, Tubers and Bananas: Planning and research for climate resilience

et al. 2017

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Open Agriculture. 2017; 2: 350-361 breeding and varietal selection; (4) phenotyping and genomic research to accelerate gains; (5) developing management options for climate-smart varieties; and (6) deployment (seed systems). In summary, climate-smart breeding means we need to do what we already do but faster, better, and smarter.Keywords: roots; tubers; bananas; potatoes; sweet potato; climate change; poverty; breeding IntroductionThe CGIAR Research Program (CRP) on Roots, Tubers and Bananas (RTB) is one of eight Agri-Food System CRPs (AFS-CRP). It incorporates livelihood systems work, especially with strong collaboration from the CRP Integrated Systems for the Humid Tropics (Humidtropics), and expands collaboration with Global Integrating CRPs (GI-CRP) and the other AFS-CRPs making up the portfolio. RTB is led by CIP, with Bioversity International, CIAT, IITA, and CIRAD as managing partners, and over 350 research and development partners. RTB brings together research on its mandate crops: bananas and plantains, cassava, potato, sweet potato, yams, and minor roots and tubers. Termed "vegetatively propagated staple crops," they are linked by common breeding, seed, and postharvest issues, and by the frequency with which women are involved in their production and use. RTB crops are the backbone of food security in humid tropical countries of sub-Saharan Africa (SSA) and in areas of Asia and Latin America. Elsewhere, RTB crops often complement maize, rice, wheat, legumes, vegetables, and livestock, while also forming part of many agro-forestry systems. Around 300 million poor people1 in developing countries Abstract: The CGIAR Research Program (CRP) on Roots, Tubers and Bananas (RTB) includes vegetatively propagated staple crops linked by common breeding, seed, and postharvest issues, and by the frequency with which women are involved in their production and use. RTB crops are the backbone of food security across the humid tropics in sub-Saharan Africa (SSA) and in more localized areas of Asia and Latin America. Around 300 million poor people in developing countries currently depend on RTB value chains for food security, nutrition and income. Climate change poses challenges which could undo progress in poverty reduction and markedly increase food insecurity. This article examines planning and research for climate resilience across RTB crops, with a particular focus on the contrasting potato and sweet potato cases in SSA. A six-step framework for climatesmart breeding is proposed: (1) downscaling climate change models and crop modeling; (2) identifying and understanding key climate change responsive traits; (3)

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Section: Step 1 Looking Into the Futurementioning

confidence: 99%

Roots, Tubers and Bananas: Planning and research for climate resilience

et al. 2017

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“…Although the optimum temperature for cassava (Manihot esculenta) is in the range of 22-32°C (Lebot 2009;Jarvis et al 2012), this root crop is exceptionally tolerant of higher temperatures and drought. It can survive temperatures of up to 45°C and an annual mean rainfall of only 300 mm (Jarvis et al 2012) but it is not tolerant of waterlogging (Lebot 2009).…”

Section: Root Cropsmentioning

confidence: 99%

“…It can survive temperatures of up to 45°C and an annual mean rainfall of only 300 mm (Jarvis et al 2012) but it is not tolerant of waterlogging (Lebot 2009). Furthermore, cassava is highly vulnerable to pests and diseases (Herrera Campo et al 2011).…”

Section: Root Cropsmentioning

confidence: 99%

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Integrating adaptation into REDD+: potential impacts and social return on investment in Setulang, Malinau District, Indonesia

Pramova¹,

Locatelli²,

Mench³

et al. 2013

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“…Alguns debates foram recentemente apresentados na comunidade científica sobre a influência ambiental na composição nutricional da mandioca. 9,10 Em termos nutricionais, quando madura, uma porção de raiz de aproximadamente 500 g pode fornecer cerca de 1800 calorias, mas é uma fonte pobre de ferro, zinco e vitamina A, além de proteína. Esta quantidade fornece apenas 30% da quantidade mínima recomendada de ferro e zinco e 10% da ingestão diária recomendada de vitamina A (β-caroteno).…”

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Determination of Cu, Fe, Mn e Zn Using FAAS in Cassava (Manihot esculenta Crantz) Roots from Eastern Amazon

Vasconcelos¹,

Filho²,

Dantas³

et al. 2017

Rev. Virtual Quim.

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Abstract:The aim of this work is to determine the amount of Fe, Zn, Mn and Cu in nine samples of cassava roots by Flame Atomic Absorption Spectrometry using chemometrics tools such as multivariate exploratory analysis to explain possible differences in its chemical characteristics and Tukey test to verify the statistical significance of the mean values. Four samples were obtained from a local trade, cultivated without any information about planting conditions or harvesting. The other five samples belonged to an active germplasm bank (AGB) under known planting conditions. The Fe content ranged from 0.54 to 5.24 mg/kg, Zn from 0.38 to 6.55 mg/kg, Cu from 0.04 to 0.89 mg/kg and Mn from 0.16 to 0.41 mg/kg. The commercial samples showed expected results for all elements quantified, while AGB samples had advantages in iron and zinc uptake. Samples from local trade did not present iron in their composition, but were the only that showed presence of manganese. Such feature was therefore an essential parameter to distinguish commercials than other samples. The knowledge of planting and environmental conditions is essential to ensure probable exogenous factors that may cause variations in micronutrient uptake. This factors should be taken into account when estimating micronutrient uptake in cassava samples.Keywords: Cassava; Chemometrics; Micronutrient; FAAS; Manganese; Cupper; Zinc; Iron. ResumoO objetivo deste estudo foi determinar a quantidade de micronutrientes Fe, Zn, Mn e Cu de nove amostras de raízes de mandioca por espectrometria de absorção atômica com chama (FAAS) utilizando ferramentas quimiométricas como a análise exploratória multivariada sem supervisão para tentar explicar possíveis diferenças nas suas características químicas e teste de Tukey para verificar a significância estatística dos valores médios. Quatro amostras foram obtidas de um comércio local, cultivadas sem qualquer informação sobre as condições ambientes de plantio ou colheita. As outras cinco amostras pertencem a um banco ativo de germoplasma (BAG) em condições de plantio e ambientes conhecidas. O teor de Fe variou de 0,54 a 5,24 mg/kg; Zn de 0,38 a 6,55 mg/kg; Cu de 0,04 a 0,89 mg/kg e Mn de 0,16 a 0,41 mg/kg. As amostras comerciais apresentaram resultados esperados para todos os elementos estudados, enquanto as amostras de BAG apresentaram vantagens na absorção de ferro e zinco. As amostras do comércio local não apresentaram ferro em sua composição, mas foram as únicas que apresentaram manganês em sua composição. Tal característica foi, portanto, um parâmetro essencial para distinguir as amostras comerciais das outras amostrasis. O conhecimento das condições de plantio são essenciais para assegurar prováveis fatores exógenos que podem causar variações na absorção de micronutrientes. Esses fatores devem ser considerados como influentes na absorção de micronutrientes em amostras de mandioca.

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Is Cassava the Answer to African Climate Change Adaptation?

Cited by 334 publications

References 85 publications

Roots, Tubers and Bananas: Planning and research for climate resilience

Roots, Tubers and Bananas: Planning and research for climate resilience

Integrating adaptation into REDD+: potential impacts and social return on investment in Setulang, Malinau District, Indonesia

Determination of Cu, Fe, Mn e Zn Using FAAS in Cassava (Manihot esculenta Crantz) Roots from Eastern Amazon

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