scholarly journals Genotype and environment interaction effect on yield of cotton under naturally salt stress condition

2005 ◽  
Vol 2 (2) ◽  
pp. 169-173 ◽  
Author(s):  
Y. Ali ◽  
Z. Aslam ◽  
F. Hussain
Keyword(s):  
Salt Stress ◽  
Interaction Effect ◽  
Stress Condition ◽  
Environment Interaction ◽  
Salt Stress Condition ◽  
Effect On Yield ◽  
Environment Interaction Effect

scholarly journals In Vitro Regeneration of Onion (Allium cepa L.) Genotypes under Salt Stress Condition

2021 ◽  
pp. 34-43
Author(s):  
Asfiqur Rahman Plabon ◽  
M. E. Hoque ◽  
Farhana Afrin Vabna ◽  
Fahima Khatun
Keyword(s):  
Salt Stress ◽  
Allium Cepa ◽  
Root Length ◽  
Stress Condition ◽  
In Vitro Regeneration ◽  
Shoot Length ◽  
Salinity Level ◽  
Salt Stress Condition ◽  
Allium Cepa L

Salinity is a major problem affecting crop production all over the world. Excessive soil salinity can reduce the productivity of many agricultural crops including many vegetables and spices. Onion is one of the most important spices in the Asiatic region which is now in high demand. The experiment was conducted to observe in vitro regeneration of onion (Allium cepa L.) under salt stress condition from September 2016 to July 2017. The experiment was conducted as two factorial (genotype and treatment) Completely Randomized Design (CRD) with 3 replications for each treatment. Shoot tip segments of three genotypes namely Faridpuri, Taherpuri and Pusa red (Indian) were cultured in MS (Murashige and skoog, 1962) media supplemented with 25, 50, 75 and 100 mM NaCl. The genotype Faridpuri gave maximum salt tolerance upto 100 mM salinity level with 10.60 cm shoot length and 1.94 cm root length having the highest relative shoot and root growth. Pusa red was found to be salinity sensitive genotype which showing lowest shoot length of 7.03 cm and root length of 0.96 cm at 100 mM NaCl treatment. However, Taherpuri was tolerant up to 100 mM salinity level with 8.14 cm shoot length and 1.25 cm root length. Both the highest fresh weight of root (54.77 mg) and dry weight of root (41.36 mg) was from the genotype Faridpuri with 25 mM NaCl treatment. However, a convenient in vitro regeneration protocol of onion genotypes under different salinity level has been developed and the genotype Faridpuri can be used for further investigation in field condition to evaluate its performance at various salinity levels.

scholarly journals Modulation of ion uptake in tomato (Lycopersicon esculentum L.) plants with exogenous application of calcium under salt stress condition

Poljoprivreda ◽  
2016 ◽  
Vol 22 (2) ◽  
pp. 40-49 ◽  
Author(s):  
Khursheda Parvin ◽  
◽  
Kamal Uddin Ahamed ◽  
Mohammad Mahbub Islam ◽  
Nazmul Haque
Keyword(s):  
Salt Stress ◽  
Lycopersicon Esculentum ◽  
Stress Condition ◽  
Ion Uptake ◽  
Salt Stress Condition ◽  
Exogenous Application

scholarly journals Ultrastructural and antioxidative changes in lupine embryo axes in response to salt stress

2013 ◽  
Vol 82 (4) ◽  
pp. 303-311
Author(s):  
Łukasz Wojtyla ◽  
Magda Grabsztunowicz ◽  
Małgorzata Garnczarska
Keyword(s):  
Superoxide Dismutase ◽  
Salt Stress ◽  
Stress Condition ◽  
Thiobarbituric Acid ◽  
Lupinus Luteus ◽  
Salt Stress Condition ◽  
Stress Prevention ◽  
Embryo Axes ◽  
Antioxidant Enzymes Activities

Embryo axes of lupine (<em>Lupinus luteus</em> L. ‘Mister’) were subjected to 0.1 M NaCl salt stress for 24 and 48 h. The ultrastructure modification and adjustment of antioxidant enzymes activities and izoenzymes profiles were observed. In cells of lupine embryo axes grown for 48 hours in medium with 0.1 M NaCl mitochondria took the forked shape and bulges of the outer mitochondrial membranes appeared. Moreover, the inflating and swelling of rough endoplasmic reticulum (RER) lumen and fragmentation of RER were noticed. The level of H<sub>2</sub>O<sub>2</sub> was higher in salt treated embryo axes after 24 hours and increase of thiobarbituric acid reactive substances was observed after both 24 and 48 h of salt treatment. Native gel electrophoresis showed increased intensities of bands for catalase isozymes in response to salt stress, whereas activity of catalase was higher only in embryo axes grown for 48 h in control conditions. Appearance of two new isoforms of ascorbate peroxidase was observed after 48 h only under control condition, however increased activities were stated for both control and salt-stress condition after 48 h. No changes in isozymes pattern for superoxide dismutase were observed, but significant decrease in superoxide dismutase activity was noticed in relation to time and salt stress. Possible role of these enzymes in salt stress tolerance is discussed. The 0.1 M salt stress is regarded as a middle stress for lupine embryo axes and the efficiency of stress prevention mechanisms is proposed.

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