In the present study, N and S assimilation, antioxidant enzymes activity, and yield were studied in N and S-treated plants of Brassica juncea (L.) Czern. & Coss. (cvs. Chuutki and Radha) under salt stress. The treatments were given as follows: (1) NaCl90 mM+N0S0 mg kg-1 sand (control), (2) NaCl90mM+N60S0 mg kg-1 sand, (3) NaCl90 mM+N60S20 mg kg-1 sand, (4) NaCl90 mM+N60S40 mg kg-1 sand, and (5) NaCl90 mM+N60S60 mg kg-1 sand.

Soil salinity is one of the important environmental factors that produce serious agricultural problems. The objective of the present study was to determine the interactive effect of salicylic acid (SA) and calcium (Ca) on plant growth, photosynthetic pigments, proline (Pro) concentration, carbonic anhydrase (CA) activity and activities of antioxidant enzymes of Triticum aestivum L. (cv. Samma) under salt stress.

A pot experiment was conducted to investigate the influence of sulfur on cadmium (Cd) stress tolerance in Triticum aestivum L. (cv. Samma). The treatments were given as follows: 0 mM S + 0 mM Cd (control), 1 mM S + 0 mM Cd (S1), 5 mM S + 0 mM Cd (S2), 10 mM S + 0 mM Cd (S3), 0 mM S + 1 mM Cd (Cd), 1 mM S + 1 mM Cd (S1+Cd), 5 mM S + 1 mM Cd (S2+Cd),) and 10 mM S + 1 mM Cd (S3+Cd). Plants fed with Cd showed reduced plant growth characteristics and increased malondialdehyde (MDA) accumulation.

Nitric oxide (NO), a small diffusible, ubiquitous bioactive molecule, acts as prooxidant as well as antioxidant, and also regulates remarkable spectrum of plant cellular mechanisms. The present work was undertaken to investigate the role of nitric oxide donor sodium nitroprusside (SNP) and/or calcium chloride (CaCl2) in the tolerance of excised mustard leaves to salt stress.

Cadmium (Cd) in soil poses a major threat to plant growth and productivity. In the present experiment, we studied the effect of calcium (Ca2+) and/or potassium (K+) on the antioxidant system, accumulation of proline (Pro), malondialdehyde (MDA), and content of photosynthetic pigments, cadmium (Cd) and nutrients, i.e., Ca2+ and K+ in leaf of Vicia faba L. (cv. TARA) under Cd stress.

Two concentrations (10-5M and 10-3M) of both GA3 and 2,4-D were used as foliar spray to evaluate the response of date palm (Phoenix dactylifera L.) cv. Khedri seedlings. They affected some of the anatomical characteristics of the first leaf emerging after the beginning of the spray. The high concentration of GA3 increased the size of the midrib and its vascular bundle numbers. Both low and high concentrations of 2,4-D inhibited the formation of the midrib.

Water stress is a serious threat to the agricultural production. Therefore, the present experiment was aimed to study the effect of abscisic acid (ABA) and/or proline (Pro) on the performance of faba bean under water stress condition. Under water deficit condition, all parameters [plant height and root length, root fresh weight, shoot fresh weight, root dry weight, shoot dry weight, total soluble carbohydrates (TSC), chlorophyll (Chl) a and b, and activity of peroxidase (POD), and catalase (CAT)] of faba beans were strongly depressed, except malondialdehyde (MDA) and Pro contents.

Nitric oxide and salicylic acid are signaling and ubiquitous bioactive molecules that regulate cellular mechanism in plants under abiotic stress. Therefore, the present experiment was conducted to study the interactive effect of NO and/or SA in tolerance of wheat (Triticum aestivum L. cv. Samma) to nickel stress.

Salinity is one of the main environmental constraints to crop productivity worldwide. The aim of the experiment was to study the role of mycorrhiza (Glomus clarum Nicol. & Schenck) in tolerance of wheat genotypes to salt stress in terms of growth, physiological and biochemical parameters. Wheat genotypes (cvs. Henta, Moaya and Samma) were grown at three levels of NaCl (0.75, 1.5 and 3 g kg-1 soil) with or without mycorrhiza.