Effect of some osmoregulators on photosynthesis, lipid peroxidation, antioxidative capacity, and productivity of barley (Hordeum vulgare L.) under water deficit stress

2018 ◽  
Vol 25 (30) ◽  
pp. 30199-30211 ◽  
Author(s):  
Khaled A. A. Abdelaal ◽  
Yaser M. Hafez ◽  
Mohamed M. El-Afry ◽  
Dalia S. Tantawy ◽  
Tarek Alshaal
2019 ◽  
Vol 89 (1) ◽  
pp. 109-118 ◽  
Author(s):  
Nanbo Wang ◽  
Fangbin Cao ◽  
Marvin Eusi Ambrose Richmond ◽  
Chengwei Qiu ◽  
Feibo Wu

Author(s):  
Mimouna Zerrouki ◽  
Zineb Regagba ◽  
Ahmed Adda

Some mechanisms of drought tolerance and avoidance have been studied in eight barley genotypes. These include three local cultivars (Ttichedrett, Beldi, Saida) and five introduced (Malouh, Seg09, Mari29, Awblack, Beecher) which were grown under three different water supply (100% FC, 60% FC, 30% FC). The increase in intensity of the water deficit reduces differently the relative water content among tested genotypes. Thus, in the treatment of 60% FC, this reduction varies between 1% (Beldi) and 6% (Tichedrett, Beecher), while in the lot of 30% FC it reaches the limits of 3% (Beldi) and 18% (Seg09). The results show that plants grown under water deficit (60% CC, 30% FC) accumulate significantly soluble sugars (r = 0.54**) and K+ (r = 0.26**) compared to control plants (100% CC). Thus, under 30% FC, the accumulation of soluble sugars reached values of 195% and 208% observed at Mari29 and Awblack. The accentuation of the water deficit causes a significant reduction of the RWL particularly after 120 mn (r = -0.27**) which is accompanied by an increase of the stomatic resistance (r = 0.53**). To limit dehydration under the water deficit, tested genotypes were distinguished into three groups by adopting avoidance, tolerance or by combining the two strategies.


Agronomy ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 33 ◽  
Author(s):  
Zakaria Al-Ajlouni ◽  
Ayed Al-Abdallat ◽  
Abdul Al-Ghzawi ◽  
Jamal Ayad ◽  
Jamal Abu Elenein ◽  
...  

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Leila Bensidhoum ◽  
El-hafid Nabti

AbstractCystoseira mediterranea (Sauv.) extract was tested for its ability to restore barley (Hordeum vulgare) growth under salt stress (350 mM NaCl), shoot growth; membrane integrity; lipid peroxidation and hydrogen peroxide determination were performed. In normal conditions, the obtained data revealed the ability of the extract to stimulate most of barley growth parameters. However, it showed significant effect on most of barley growth parameters (plant height, fresh and dry weight of shoots and roots) and chlorophyll content, under salt stress. The measurement of stress parameters (membrane integrity, lipid peroxidation and hydrogen peroxide) revealed significant effect of C. mediterranea extract on reducing the deleterious impact of salt stress on barley seedlings.


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