Tomato is one of the important plants in the world as a food, medicine etc. it is sensitive to abiotic stresses and its crop is affected by them. Moreover, Ascorbic acid (AsA) is one of the universal of plant defence mechanism against the stresses specially salinity and drought to scavenger’s reactive oxygen species. According to global warming and scarcity of water resources, subsequently dryi...

In the present study, effects of zinc oxide nanoparticles (ZnO NPs) on rice (Oryza sativa L. cv. PB1509) plant growth were assessed in hydroponics (5, 10, 25, 50 mg L−1) and soil microcosm 25 kg−1) experiments. both experiments, Zinc (Zn) accumulation parts (roots, shoots grains) was found to increase with increasing doses ZnO NPs. Grains accumulated 29 kg−1 Zn at NPs experiment. experiment, ph...

In this work, we studied the interplay among levels of starch, sugars, abscisic acid (ABA) and bioactive gibberellins (GAs), antioxidant metabolism during bud dormancy release in a low chill peach variety. The experiments were performed two consecutive years geographical areas with different annual media temperature. cold area, plants accumulated more starch soluble sugars than temperate sorbit...

water deficit stress is the most important environmental constraint for growth, yield and productivity of crops, including the oil seed crops. this study was aimed at studying the influence of differing irrigation régimes on growth, chlorophyll , proline and some antioxidants content along with grain yield, yield components and oil content of sesame genotypes using a 4-replicate split plot rand...

The effects of exogenous abscisic acid (ABA) and its two agonists, Sulfacetamide (Sa) and Sulfasalazine (SS) on tolerance of tomato (Lycopersicon esculentum Mill. Cv. Super chief) under drought stress were studied. Eight-week plants were treated with ABA (25 and 50 mg/L), Sulfacetamide (Sa) (25, 50 and 100 mg/L) and Sulfasalazine (SS) (25, 50 and 100 mg/L). Solutions were sprayed daily and samp...

Saline–alkali stress is one of the major factors limiting oat seed germination. The regulatory role melatonin (MT) as a naturally occurring active substance well known, but mechanism MT-mediated intrinsic physiological regulation germination under saline–alkali unclear. Therefore, this study investigated (1) variability different MT soaking concentrations and times on seeds stress, (2) possible...

Heat shock proteins (HSPs) play important roles in various stress conditions. In this study, CmHSP90.5, whose expression is induced by heat and salt, was cloned from a chrysanthemum (Chrysanthemum morifolium) ‘Jinba’ expressed Arabidopsis. We found that CmHSP90.5 localized the chloroplast. The heterologous of weakened tolerance Arabidopsis reduced activity antioxidant enzymes, including superox...

Abstract Galdieria spp. (Rhodophyta) are polyextremophile microalgae known for their important antioxidant properties in different biological systems. Nowadays, the beneficial and bio-stimulant effect of microalgal extracts is widely tested on crops. Here, first time, potential positive effects aqueous from were a second culture Chlorella sorokiniana cultures supplemented with phlegrea (EC) sho...

The present study evaluates the genotoxic potential of different soil samples collected from rice fields employing Allium cepa root chromosomal aberration assay using in situ and root dip modes of treatment. The study also involves assessment of oxidative stress by analyzing responses of certain antioxidative enzymes viz. catalase (CAT), ascorbate peroxidase (APX), glutathione reductase (GR), g...

The possible involvement of activated oxygen species in the mechanism of damage by NaClstress was studied in leaves of two varieties of pea (Pisum sativum L.) cv. EC 33866 and Puget. Thelevel of lipid peroxidation, enzyme activity of superoxide dismutase (SOD, EC 1.15.1.1), ascorbateperoxidase (APX, EC 1.11.1.11), glutathione reductase (GR, EC 1.6.4.2), dihydroascorbate reductase(DHAR, 1.8.5.1)...