Climate change in Algeria and its impact on durum wheat

Chourghal, Nacira; Lhomme, Jean; Huard, Frédéric; Aïdaoui, Abdellah

doi:10.1007/s10113-015-0889-8

Cited by 40 publications

(23 citation statements)

References 42 publications

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“…Climate change will negatively affect the largely rain-fed agricultural production in North Africa (Waha et al 2017). For the central northern region of Algeria, a reduction in durum wheat production of between 22% and 40% is projected for the period from 2071 to 2100 compared to the 1980-2009 baseline period using the IPCC A1B scenario (Chourghal et al 2016). The extent of the reduction depends on whether prescribed or dynamic sowing is assumed.…”

Section: Food Productionmentioning

confidence: 99%

Climate change vulnerability, water resources and social implications in North Africa

et al. 2020

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North Africa is considered a climate change hot spot. Existing studies either focus on the physical aspects of climate change or discuss the social ones. The present article aims to address this divide by assessing and comparing the climate change vulnerability of Algeria, Egypt, Libya, Morocco, and Tunisia and linking it to its social implications. The vulnerability assessment focuses on climate change exposure, water resources, sensitivity, and adaptive capacity. The results suggest that all countries are exposed to strong temperature increases and a high drought risk under climate change. Algeria is most vulnerable to climate change, mainly due to the country's high sensitivity. Across North Africa, the combination of climate change and strong population growth is very likely to further aggravate the already scarce water situation. The so-called Arab Spring has shown that social unrest is partly caused by unmet basic needs of the population for food and water. Thus, climate change may become an indirect driver of social instability in North Africa. To mitigate the impact of climate change, it is important to reduce economic and livelihood dependence on rain-fed agriculture, strengthen sustainable land use practices, and increase the adaptive capacity. Further, increased regional cooperation and sub-national vulnerability assessments are needed.

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Section: Food Productionmentioning

confidence: 99%

Climate change vulnerability, water resources and social implications in North Africa

et al. 2020

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“…Worldwide, durum wheat is cultivated in areas with low seasonal rainfall and frequently affected by drought, the main limiting factor for grain yield [4,5]. Studies of yield performance in different ecological niches are important for optimizing breeding activities across wheatgrowing regions.…”

Section: Introductionmentioning

confidence: 99%

Quantitative trait loci for agronomic traits in tetraploid wheat for enhancing grain yield in Kazakhstan environments

et al. 2020

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Durum wheat (Triticum turgidum L. ssp. durum) is one of the top crops in Kazakhstan, where it is cultivated in different ecological niches, mainly at higher latitudes in the steppe zone of the northern region. Therefore, local breeding programs for durum wheat are primarily focused on selection for high productivity in Northern Kazakhstan based on the introduction of promising foreign germplasm and the adoption of marker-assisted selection. In this study, a world tetraploid wheat collection consisted of 184 primitive and domesticated accessions, which were previously genotyped using 16,425 polymorphic SNP markers, was field-tested in Northern and Southeastern Kazakhstan. The field tests have allowed the identification of 80 durum wheat promising lines in Northern Kazakhstan in comparison with a local standard cultivar. Also, GGE (Genotype and Genotype by Environment) biplot analyses for yield performance revealed that accessions of T. dicoccum, T. carthlicum, and T. turanicum also have potential to improve durum wheat yield in the region. The genome-wide association study (GWAS) has allowed the identification of 83 MTAs (marker-trait associations) for heading date, seed maturation time, plant height, spike length, number of fertile spikes, number of kernels per spike, and thousand kernel weight. The comparison of the 83 identified MTAs with those previously reported in GWAS for durum wheat suggests that 38 MTAs are presumably novel, while the co-localization of a large number of MTAs with those previously published confirms the validity of the results of this study. The MTAs reported herewith will provide the opportunity to implement marker-assisted selection in ongoing durum wheat breeding projects targeting higher productivity in the region.

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“…The water requirements of a crop represent the amount of water needed to ensure the equivalent of maximum evapotranspiration of a crop in good health, under non‐limiting water and fertility conditions, thus leading to a potential yield under given climatic conditions (Ferrant et al, ). The notion of maximum crop evapotranspiration (ETc) is defined by daily evapotranspiration (in mm day −1 ) of a given crop related to the crop stage, environmental conditions and cultural practices (Allen et al, ; Chourghal et al, ). The daily quantities of water to be supplied for ETc plots were determined by calculating crop evapotranspiration ‘ETc’ [in mm/day] using Equation (Allen et al, ):

ETc = K_{c} \times {ET}_{0}

where ET 0 is reference evapotranspiration referred to as potential evapotranspiration ‘PET’ [in mm day −1 ] and K c is the crop coefficient [dimensionless].…”

Section: Methodsmentioning

confidence: 99%

Effect of Water Regime on Growth Performance of Durum Wheat (Triticum Durum Desf.) During Different Vegetative Phases

Fellah

Khiari

Kribaa

et al. 2018

Irrigation and Drainage

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Plant growth and yield of cereal crops are seriously affected in drought‐prone environments, hence effective agricultural means are needed. This paper aims to evaluate the beneficial effects of supplemental irrigation, at different phenological phases, on theoretical yield components of two varieties (GTA‐Dur and Vitron) of durum wheat under field conditions. Field experiments included six water regime treatments: crop evapotranspiration ‘ETc’ throughout the wheat‐growing season (i.e. adequately irrigated); rainfed conditions (no irrigation); and four supplemental irrigation treatments (T1–T4) applied respectively at the beginning of four phenological phases of wheat growth (tillering, heading, flowering and grain filling). Yield components were significantly influenced at the beginning of the cropping season, while the components expressed in weights were influenced at late cropping. Theoretical grain yield of the variety Vitron increased by 33% at T1, 84.3% at T2, 424% at T3, 902% at T4 and 1100% at ETc. Water productivity (WP) increased by 45–70% in irrigation treatments compared to rainfed conditions. Our findings stress that the consistency between appropriate water regime and adequate varietal choice increases WP and crop productivity, and improves irrigation water conservation. Complementary irrigation substantially improves the valorization of water by crops in water‐limited areas such as hot arid and semi‐arid regions. © 2018 John Wiley & Sons, Ltd.

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Climate change in Algeria and its impact on durum wheat

Cited by 40 publications

References 42 publications

Climate change vulnerability, water resources and social implications in North Africa

Climate change vulnerability, water resources and social implications in North Africa

Quantitative trait loci for agronomic traits in tetraploid wheat for enhancing grain yield in Kazakhstan environments

Effect of Water Regime on Growth Performance of Durum Wheat (Triticum Durum Desf.) During Different Vegetative Phases

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