The impact of climate change on Brazil's agriculture

Zilli, Marcia T.; Scarabello, Marluce; Soterroni, Aline C.; Valin, Hugo; Mosnier, Aline; Leclère, David; Havlík, Petr; Kraxner, Florian; Lopes, M. A.; Ramos, Fernando M.

doi:10.1016/j.scitotenv.2020.139384

Cited by 105 publications

(78 citation statements)

References 39 publications

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“…Water-and nutrient-use efficiency and/or tolerance have never been targeted before for selection, given that the experimental stations of seed companies do not experience these limitations (Carena, 2021). However, the scenario is different in Brazilian farmlands where no expensive and efficient irrigation systems can be found (Carvalho et al, 2020;Zilli et al, 2020). Erratic rainfall has been frequently reported in the last decades (Intergovernmental Panel on Climate Change, 2019) and, hence, exacerbates these soil water deficits.…”

Section: Introductionmentioning

confidence: 99%

Driving Sustainable Popcorn Breeding for Drought Tolerance in Brazil

et al. 2021

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Drought currently affects several regions worldwide and tends to be more frequent due to climate change. It might compromise food security and the economic structure related to agribusiness. Popcorn has a crucial role in the Brazilian economy, but the cultivars that adapt to water stress, the most prejudicial abiotic stress for crop productivity, are unknown to date. This deficit of popcorn varieties adapted to heat and drought stresses will become more limiting with climate change. Given this scenario, knowing the genetic basis of agronomic traits under stress conditions is essential in promoting crop productivity and plant adaptation to abiotic stresses. Under two contrasting water conditions (WC) and different crop seasons (CS), we aimed to generate information about the combining ability of 10 popcorn progenitors and 15 hybrids through a partial diallel-mating design. The water stress was initiated at the male pre-anthesis stage. Significant genotype*crop seasons (G*CS), genotype*water condition (G*WC), and genotype*crop seasons*water condition (G*CS*WC) interactions were present. Regardless of CS and WC, non-additive effects controlled grain yield (GY), grain number per row (GN), ear length and diameter (ED), and 100-grain weight, while additive effects were present for popping expansion (PE). For each CS, regardless of WC, the cause-effect of GN (2018) and ED (2020) on GY seems to be an opportunity for indirect selection. Utilizing genetically broad-based hybrids is also a good opportunity for obtaining superior genotypes for GY and PE as it is possible to select inbred lines for both of these traits. We recommend the L76 × L61 hybrid for the Brazilian agribusiness context due to its greater productivity and dominance deviations.

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Section: Introductionmentioning

confidence: 99%

Driving Sustainable Popcorn Breeding for Drought Tolerance in Brazil

et al. 2021

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“…We used GLOBIOM-Brazil, a bottom-up recursive dynamic global partial equilibrium economic model, to project land use change from the baseline year 2000 up to 2050 (Soterroni 1 3 et al 2018;Soterroni et al 2019;Uba de Andrade Junior et al 2019;Zilli et al 2020). The model runs in 10 year timesteps and takes into account projected changes in population and demands for goods (both nationally and globally), as well as spatially-varying factors such as land productivity, production costs, and internal transportation costs, to simulate the production and trade of 18 crops, 5 forestry products and 7 livestock products on uniform grid with a spatial resolution of approximately 50 km by 50 km at the equator for Brazil, and 200 km by 200 km for the rest of the world.…”

Section: Land Use Change Modelmentioning

confidence: 99%

Implementing Brazil’s Forest Code: a vital contribution to securing forests and conserving biodiversity

et al. 2021

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Meeting Brazil’s ambitious national commitments on both climate change mitigation and biodiversity conservation depends on securing its reserves of forest carbon and biodiversity. Brazil’s ‘Forest Code’ is a key tool to reconcile environmental preservation and agricultural production; it limits deforestation and requires forest restoration in illegally deforested areas. However, not all provisions of the law’s 2012 revision have yet been implemented and some are facing new challenges. Using modelled land use change projections for the whole of the country, we show that full implementation and enforcement of the law has the potential to contribute to conserving biodiversity. Biodiversity outcomes will be especially positive if (i) deforested areas are restored in ways that support recolonization by native species and (ii) additional measures are implemented to protect native vegetation in areas like Caatinga dry forests and Cerrado savannas, which may experience added pressure displaced from other regions by Forest Code implementation.

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“…Climate change and its impact on agriculture crops has been widely reviewed [ 55 , 56 , 57 , 58 , 59 , 60 ]. The climate is changing at an alarming rate, triggering various abiotic stresses which are affecting food crops in one way or another, which directly affects the global food supply.…”

Section: Effects Of Climate Change On Millets and Their Tolerance Strategiesmentioning

confidence: 99%

Alternative Strategies for Multi-Stress Tolerance and Yield Improvement in Millets

Numan

Serba

Ligaba-Osena

2021

Genes

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Millets are important cereal crops cultivated in arid and semiarid regions of the world, particularly Africa and southeast Asia. Climate change has triggered multiple abiotic stresses in plants that are the main causes of crop loss worldwide, reducing average yield for most crops by more than 50%. Although millets are tolerant to most abiotic stresses including drought and high temperatures, further improvement is needed to make them more resilient to unprecedented effects of climate change and associated environmental stresses. Incorporation of stress tolerance traits in millets will improve their productivity in marginal environments and will help in overcoming future food shortage due to climate change. Recentlly, approaches such as application of plant growth-promoting rhizobacteria (PGPRs) have been used to improve growth and development, as well as stress tolerance of crops. Moreover, with the advance of next-generation sequencing technology, genome editing, using the clustered regularly interspaced short palindromic repeats (CRISPR/Cas9) system are increasingly used to develop stress tolerant varieties in different crops. In this paper, the innate ability of millets to tolerate abiotic stresses and alternative approaches to boost stress resistance were thoroughly reviewed. Moreover, several stress-resistant genes were identified in related monocots such as rice (Oryza sativa), wheat (Triticum aestivum), and maize (Zea mays), and other related species for which orthologs in millets could be manipulated by CRISPR/Cas9 and related genome-editing techniques to improve stress resilience and productivity. These cutting-edge alternative strategies are expected to bring this group of orphan crops at the forefront of scientific research for their potential contribution to global food security.

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The impact of climate change on Brazil's agriculture

Cited by 105 publications

References 39 publications

Driving Sustainable Popcorn Breeding for Drought Tolerance in Brazil

Driving Sustainable Popcorn Breeding for Drought Tolerance in Brazil

Implementing Brazil’s Forest Code: a vital contribution to securing forests and conserving biodiversity

Alternative Strategies for Multi-Stress Tolerance and Yield Improvement in Millets

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