Response of Carotenoids and Tocols of Durum Wheat in Relation to Water Stress and Sulfur Fertilization

2013 ◽  
Vol 61 (11) ◽  
pp. 2583-2590 ◽  
Author(s):  
Alessandra Fratianni ◽  
Luigia Giuzio ◽  
Tiziana Di Criscio ◽  
Flagella Zina ◽  
Gianfranco Panfili
Keyword(s):  
Water Stress ◽  
Durum Wheat ◽  
Sulfur Fertilization

scholarly journals Impact of climatic variability on durum wheat (Triticum durum L.) yields in North Western of Algeria

2016 ◽  
Vol 5 (1) ◽  
pp. 107-120 ◽  
Author(s):  
Meterfi Baroudi ◽  
Wael El Zerey ◽  
Salaheddine Bachir Bouiadjra
Keyword(s):  
Water Stress ◽  
Durum Wheat ◽  
Climatic Factors ◽  
Climatic Variability ◽  
Water Environment ◽  
Thermal Fluctuations ◽  
Reproductive Period ◽  
Large Variability ◽  
Semi Arid Region ◽  
North Western

In semi arid region of the South West of the Mediterranean basin, low rainfall, and thermal fluctuations cause water stress situations affecting at different levels, with varying intensities, the development of durum wheat yields. This work aims to study the major climatic factors that determine water environment of durum wheat in its reproductive period and assess their trend related to yields of the grain. Comparing diagrams of Bagnoul and Gaussen, established for two periods (1913-1937 and 1977-2014), highlighted an increase in the duration of the dry season due to rising temperatures, especially summer and a decrease in volume of the seasonal rainfall involving therefore water stress during the reproductive phase of cereal. The analysis of water regime in the past three decades, for the months of March, April and May, through the application of the approach of UNESCO-FAO, highlighted a very large variability in intensity of water stress during grain development period during the last years and also the tendency of the spring season months to be more drought. This reflects the complexity of the selection for yield components in this region. International Journal of Environment Vol. 5 (1) 2016,  pp: 107-120

Ear of durum wheat under water stress: water relations and photosynthetic metabolism

Planta ◽  
2005 ◽  
Vol 221 (3) ◽  
pp. 446-458 ◽  
Author(s):  
Eduardo A. Tambussi ◽  
Salvador Nogués ◽  
José Luis Araus
Keyword(s):  
Water Stress ◽  
Durum Wheat ◽  
Water Relations ◽  
Photosynthetic Metabolism

Harvest index combined with impaired N availability constrains the responsiveness of durum wheat to elevated CO2 concentration and terminal water stress

2014 ◽  
Vol 41 (11) ◽  
pp. 1138 ◽  
Author(s):  
Gorka Erice ◽  
Alvaro Sanz-Sáez ◽  
Amadeo Urdiain ◽  
Jose L. Araus ◽  
Juan José Irigoyen ◽  
...  
Keyword(s):  
Water Stress ◽  
Durum Wheat ◽  
Elevated Co2 ◽  
Water Availability ◽  
Harvest Index ◽  
Grain Filling ◽  
Co2 Concentration ◽  
N Availability ◽  
Elevated Co2 Concentration

Despite its relevance, few studies to date have analysed the role of harvest index (HI) in the responsiveness of wheat (Triticum spp.) to elevated CO2 concentration ([CO2]) under limited water availability. The goal of the present work was to characterise the role of HI in the physiological responsiveness of durum wheat (Triticum durum Desf.) exposed to elevated [CO2] and terminal (i.e. during grain filling) water stress. For this purpose, the performance of wheat plants with high versus low HI (cvv. Sula and Blanqueta, respectively) was assessed under elevated [CO2] (700 μmol mol–1 vs 400 μmol mol–1 CO2) and terminal water stress (imposed after ear emergence) in CO2 greenhouses. Leaf carbohydrate build-up combined with limitations in CO2 diffusion (in droughted plants) limited the responsiveness to elevated [CO2] in both cultivars. Elevated [CO2] only increased wheat yield in fully watered Sula plants, where its larger HI prevented an elevated accumulation of total nonstructural carbohydrates. It is likely that the putative shortened grain filling period in plants exposed to water stress also limited the responsiveness of plants to elevated [CO2]. In summary, our study showed that even under optimal water availability conditions, only plants with a high HI responded to elevated [CO2] with increased plant growth, and that terminal drought constrained the responsiveness of wheat plants to elevated [CO2].

scholarly journals Yield and yield traits of durum wheat (Triticum durum desf.) and bread wheat (Triticum aestivum L.) genotypes under drought stress

Genetika ◽  
2016 ◽  
Vol 48 (2) ◽  
pp. 717-727
Author(s):  
Tofig Allahverdiyev
Keyword(s):  
Water Stress ◽  
Drought Stress ◽  
Durum Wheat ◽  
Bread Wheat ◽  
Geometric Mean ◽  
Triticum Aestivum L ◽  
Tolerance Index ◽  
Yield Traits ◽  
Wheat Genotypes ◽  
Spike Number

Field experiment was conducted to study the effect of water stress on yield and yield traits of durum wheat and bread wheat genotypes. Water stress caused significant reduction in plant height (PH), peduncle length (PL), spike number/m2(SN), spike length (SL), spike width (SW), spikelets number/spike (SNS), spike mass (SM), grain number/spike (GNS), grain mass/spike (GMS), biological yield (BY), thousand kernel mass (TKM), grain yield (GY) and harvest index (HI). Wheat traits such as SN, SM, BY, TKM, GY were more vulnerable to drought stress. Positive significant correlation of GY with SN, BY and HI under rain-fed condition was found. Genotypes of durum wheat were more sensitive to drought than that bread wheat genotypes. The significant and positive correlation of GY with Stress Tolerance Index (STI), Mean Productivity (MP) and Geometric Mean Productivity (GMP) indicated that these indices were more effective in identifying high yielding, drought tolerance genotypes.

scholarly journals Role of leaf rolling on agronomic performances of durum wheat subjected to water stress

2020 ◽  
Vol 16 (6) ◽  
pp. 791-810
Author(s):  
Ben-Amar Amal ◽  
Véry Anne-Aliénor ◽  
Sentenac Hervé ◽  
Bouizgaren Abdelaziz ◽  
Mahboub Said ◽  
...  
Keyword(s):  
Water Stress ◽  
Durum Wheat ◽  
Leaf Rolling
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