Ageing induces seed deterioration expressed as the loss of seed vigor and/or viability. Priming treatment, which consists in soaking of seeds in a solution of low water potential, has been shown to reinvigorate aged seeds. An experiment was conducted to evaluate the effects of naturally and accelerated aging on seed germination traits and enzyme activities (proxidase, catalase and superoxid dis...

Effect of salts (Na2SO4, Na2CO3, MgSO4, NaCl, MgCl2), soil extract and polyethylene glycol (PEG-6000) on the germination of Chenopodium glaucum L., seed was studied. Maximum germination was obtained in distilled water. Germination decreased with increase in salinity. The inhibition of germination by salt solutions was in the order of MgCl2 > Na2SO4 > Na2CO3 > NaCl > Soil extract > MgSO4. Germin...

To study the effects of halopriming and hydropriming in overcoming salt and drought stress in corn (Zea mays L.),two experiments were separately conducted at Shahrood University of Technology. Seed treatments consisted ofcontrol (untreated seeds), soaking in distilled water for 32 h (hydropriming), and soaking in 50 mmol solution ofCaCl2 for 16 h (halopriming). Germination and early seedling gr...

effect of seed priming on germination and seedling growth of sesame investigated under controlled conditions. the primed seeds with znso4 had the maximum germination percentage whereas the highest germination rate was observed in hydro-primed seeds. the treated seeds with peg showed the best growth of the seedlings and rootlet. the complementary field experiment was conducted to evaluate the ef...

Seed priming is a method for improving seed vigor, which can improve germinability, but the disappearance of positive effects and decrease longevity during storage may limit its application. To determine effect on hot pepper seeds time be maintained, it necessary to monitor study variability primed storage. In this study, several treatments with 3% KNO3, 20% PEG, or KNO3 + PEG up 8 months were ...

Damage and degradation of cellular proteins is observed during age-induced seed deterioration, LIsoaspartyl protein methyltransferase (EC 2.1.1.77) is an enzyme hypothesized to play a role in limiting and repairing age-induced damage to proteins. Tomato {Lycopersicon esculentum Mill. 'New Yorker') seeds were assayed for changes in L-isoaspartyl methyltransferase activity during accelerated agei...

Seeds of alfalfa (Medicago sativa) and white clover (Trifolium repens) were primed in 3 priming solutions [2% NaCl, 2% KNO3 and 300 g/L polyethylene glycol (PEG)] for 2 days at 20°C and their subsequent germination compared with that of untreated seed. Four replications of 50 seeds for germination and 25 seeds for emergence were arranged in a 2-factor factorial completely randomised design. All...

Salvia przewalskii Maxim. is an important Asian medicinal plant. The aim of the study was to investigate reaction seeds this species priming and storage temperature. germination, vigour health were determined for untreated osmoprimed diaspores, after harvest 12 months at 4 16°C. primed in polyethylene glycol (PEG) water solution with osmotic potential –0.8 –1.1 MPa. It has been found that osmop...

in order to study of hydropriming and halopriming on germination and early growth stage of wheat (triticum aestivum l.) an experiment was carried out in laboratory of the department of agronomy and plant breeding, shahrood university of technology. seed treatments consisted of t1: control (untreated seeds), t2: soaking in distilled water for 18 h (hydropriming). t3: soaking in -1.2 mpa solution...