Climate change and Mediterranean agriculture: Impacts on winter wheat and tomato crop evapotranspiration, irrigation requirements and yield

Saadi, Sameh; Todorović, Mladen; Tanasijevic, Lazar; Pereira, L. S.; Pizzigalli, Claudia; Lionello, Piero

doi:10.1016/j.agwat.2014.05.008

Cited by 207 publications

(116 citation statements)

References 51 publications

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“…Moreover, chlorophyll content is considered a reliable indicator of WUE and adaptation to drought stress in wheat [36]. Therefore, the development of wheat cultivars that are able to use available water more efficiently and tolerate drought is a major goal for increasing wheat productivity under water-limited environments and countries should authorize policies that allocate water to adapt with climate change [10,[37][38][39].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Supplemental Irrigation on Canopy Temperature Depression, Chlorophyll Content, and Water Use Efficiency in Three Wheat (Triticum aestivum L. and T. durum Desf.) Varieties Grown in Dry Regions of Jordan

et al. 2018

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Abstract:One critical challenge facing the world is the need to satisfy the food requirements of the dramatically growing population. Drought stress is one of the main limiting factors in the wheat-producing regions; therefore, wheat yield stability is a major objective of wheat-breeding programs in Jordan, which experience fluctuating climatic conditions in the context of global climate change. In the current study, a two-year field experiment was conducted for exploring the effect of four different water regimes on the yield, yield components, and stability of three wheat (Triticum aestivum L.; T. durum Desf.) Jordanian cultivars as related to Canopy Temperature Depression (CTD), and Chlorophyll Content (measured by Soil-Plant Analysis Development, SPAD). A split plot design was used in this experiment with four replicates. Water treatment was applied as the main factor: with and without supplemental irrigation; 0%, 50%, 75%, and 100% of field capacity were applied. Two durum wheat cultivars and one bread wheat cultivar were split over irrigation treatments as a sub factor. In both growing seasons, supplemental irrigation showed a significant increase in grain yield compared to the rain-fed conditions. This increase in grain yield was due to the significantly positive effect of water availability on yield components. Values of CTD, SPAD, harvest index, and water use efficiency (WUE) were increased significantly with an increase in soil moisture and highly correlated with grain yield. Ammon variety produced the highest grain yield across the four water regimes used in this study. This variety was characterized by the least thermal time to maturity and the highest values of CTD and SPAD. It was concluded that Ammon had the highest stability among the cultivars tested. Furthermore, CTD and SPAD can be used as important selection parameters in breeding programs in Jordan to assist in developing high-yielding genotypes under drought and heat stress conditions.

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Section: Introductionmentioning

confidence: 99%

The Effect of Supplemental Irrigation on Canopy Temperature Depression, Chlorophyll Content, and Water Use Efficiency in Three Wheat (Triticum aestivum L. and T. durum Desf.) Varieties Grown in Dry Regions of Jordan

et al. 2018

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“…The same conclusion is also reached for the summer drought intensity WSI, for which the earlier drought start is compensated by a slightly earlier (although non-significant) drought offset (t2). We then warn here, that despite no significant major trends in the two key drivers of tree growth (growth period or carbon assimilation), these two drivers are controlled by climate variables that are highly affected by recent climate changes, with compensating effects until now, but which could potentially result in the switching to a shrinkage of the growth phenological period, as recently observed with the winter temperature warming pause in southern France [88], or a prolonged drought at the end of the dry season as a consequence of enhanced potential evapotranspiration due to temperature increase as forecasted in the region [87,89,90].…”

Section: Quercus Suber Vulnerability To Recent Climate Changes Under mentioning

confidence: 99%

Deep Soil Conditions Make Mediterranean Cork Oak Stem Growth Vulnerable to Autumnal Rainfall Decline in Tunisia

Zribi

Mouillot

Guibal

et al. 2016

Forests

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Tree rings provide fruitful information on climate features driving annual forest growth through statistical correlations between annual tree growth and climate features. Indices built upon tree growth limitation by carbon sequestration (source hypothesis) or drought-driven cambial phenology (sink hypothesis) can be used to better identify underlying processes. We used both analytical frameworks on Quercus suber, a sparsely studied species due to tree ring methodological issues, and growing on a favorable sub-humid Mediterranean climate and deep soil conditions in Tunisia (North Africa). Statistical analysis revealed the major role of autumnal rainfall before the growing season on annual tree growth over the 1918-2008 time series. Using a water budget model, we were able to explain the critical role of the deep soil water refill during the wet season in affecting both the drought onset controlling growth phenology and the summer drought intensity affecting carbon assimilation. Analysis of recent climate changes in the region additionally illustrated an increase in temperatures enhancing the evaporative demand and advancing growth start, and a decline in rainfalls in autumn, two key variables driving stem growth. We concluded on the benefits of using process-based indices in dendrochronological analysis and identified the main vulnerability of this Mediterranean forest to autumnal rainfall decline, a peculiar aspect of climate change under summer-dry climates.

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“…In California, Zalom and Wilson (1999) evaluated GDD model with different base temperature and upper cutoff limits and found that the combination of 10 °C base temperature and 30 °C upper cutoff provided optimum match with observed growth stages in processing tomatoes. Apart from predicting various growth stages, GDD model can provide helpful prediction of time to maturity and length of the total growing season (Anandhi 2016;Castillo and Gaitán Ospina 2016;Machado et al 2004;Saadi et al 2015). The ability to predict maturity and identifying trends over the future could assist in many important strategic and management decisions such as labor management, linking with tomato processors, and long-term water management based on the length of the growing season trend and GDD accumulations.…”

Section: Introductionmentioning

confidence: 99%

“…These are often overlooked aspects of plant ecology (Cleland et al 2007;Anandhi 2016;Darand and Mansouri Daneshvar 2015) and have important implications for agricultural production. Study done by Saadi et al (2015) show that air temperature is foreseen to have a dominant role on the shortening and anticipation of the tomato growing cycle over the Mediterranean region. Ventrella et al (2012) studied agronomic adaptation strategies in Italy under climate change for several crops in including tomatoes and found that tomato phenology may alter by 2050 due to warmer temperature and may reduce tomato yields.…”

Section: Introductionmentioning

confidence: 99%

Climate change effects on the processing tomato growing season in California using growing degree day model

Pathak

Stoddard

2018

Model. Earth Syst. Environ.

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California has a unique Mediterranean climate, well suited for irrigated agriculture. The climate is an important factor in making California a global leader in production of many high value crops, including procesing tomatoes (Lycopersicon esculentum Mill), with production of approximately 95% nation's and 30% of world's processing tomatoes. However, climate change poses many immediate and long-term challenges for state's highly productive agricultural industry. In order to help growers manage risks, it is important to study locally relevant agronomic indicators that are viable and aligned with growers' interests. Growing degree day models translate raw climate data into meaningful agricultural indicators which growers can utilize for immediate and long-term strategic decisions. Objective of this study was to analyze growing season trend in top five processing tomato-producing counties in California through the use of growing degree-days model and historical and future climate scenarios generated from the general circulation model (GCM). Based on the findings, the models indicated a significant decrease in the number of days between transplanting and maturity, with an expected harvest 2-3 weeks earlier than normal under current conditions and cultivars. Results from this study could be utilized to make strategic decisions such as variety selection, planting and harvest dates, agricultural water management, and studying trends in pests and diseases due to shifts and lengthening of tomato growing season in the tomato production areas of California.

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Climate change and Mediterranean agriculture: Impacts on winter wheat and tomato crop evapotranspiration, irrigation requirements and yield

Cited by 207 publications

References 51 publications

The Effect of Supplemental Irrigation on Canopy Temperature Depression, Chlorophyll Content, and Water Use Efficiency in Three Wheat (Triticum aestivum L. and T. durum Desf.) Varieties Grown in Dry Regions of Jordan

The Effect of Supplemental Irrigation on Canopy Temperature Depression, Chlorophyll Content, and Water Use Efficiency in Three Wheat (Triticum aestivum L. and T. durum Desf.) Varieties Grown in Dry Regions of Jordan

Deep Soil Conditions Make Mediterranean Cork Oak Stem Growth Vulnerable to Autumnal Rainfall Decline in Tunisia

Climate change effects on the processing tomato growing season in California using growing degree day model

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