physiological changes of wheat plants which seed pretreated by salicylic acid under late sowing date
نویسندگان
چکیده
wheat, cv. alvand, under late sowing condition and comparison with conventional sowing date was investigated in a field experiment in 2009-2010. the factors were seven levels of priming by sa, including control or untreated seeds, 400, 800, 1200, 1600, 2000 and 2400 µm sa and two sowing dates including conventional sowing date (23 october) and late sowing (22 november). results showed that priming with sa had signifi the effects of seed priming by salicylic acid (sa) on some physiological traits of cant effects on leaf area index , plant dry weight ( total, stem, crown , spikelet and leaf ), membrane stability , relative water content , canopy temperature and seed yield. the highest dry weight ) total, crown and leaf ) , seed yield and the lowest concentration of electrolyte leakage were found in 1200 µm salicylic acid . application of sa improved plant water status and relative water content and leaf area index. on the other hand, canopy temperature in treated plants was significantly lower than control plants. reduction in leaf temperature indicates that there is more transpiration and stomatal extension in sa treated plants because of plant water status improvement. reduction in electrolyte leakage and increment in leaf area and photosynthesis led to increase in biomass and plant dry matter.
منابع مشابه
effects of seed priming by salicylic acid on wheat cv. alvand bread quality under late sowing condition
to evaluate the effects of seed priming with salicylic acid on quality and baking traits of wheat flour, cv. alvand, under different sowing dates, a factorial experiment was conducted on the basis of complete randomized block design. the factors were seed priming with salicylic acid (including untreated seeds or control treatment, 400, 800, 1200, 1600, 2000 and 2400 µm concentrations of salicyl...
متن کاملEffect of salicylic acid on biochemical changes in wheat plants under khat leaves residues
Residues of khat (Catha edulis Forskal) leaves in the soil showed an inhibitory effect on the dry mass, pectin and cellulose of wheat shoots and roots and cell wall-associated proteins of roots. The dry mass of shoots and roots significantly reduced and the reduction in roots was greater than in shoots. On the other hand, the contents of hemicellulose and lignin in both shoots and roots and cel...
متن کاملChanges in antioxidant enzymes activity and physiological traits by exogenous salicylic acid in basil (Ocimum basilicum) under Pb stress
Salicylic acid (SA) is a key molecule that alleviates abiotic stress in many plant species. In this study, the role of SA was examined to moderate lead (Pb) toxicity in the basil (Ocimum basilicum). The experimental design was a randomized complete block design with 4 levels of PbNO3; 0 (control), 100, 200 and 300 mg kg-1 of soil as the first factor, and the foliar application of SA at 3 levels...
متن کاملChanges in antioxidant enzymes activity and physiological traits by exogenous salicylic acid in basil (Ocimum basilicum) under Pb stress
Salicylic acid (SA) is a key molecule that alleviates abiotic stress in many plant species. In this study, the role of SA was examined to moderate lead (Pb) toxicity in the basil (Ocimum basilicum). The experimental design was a randomized complete block design with 4 levels of PbNO3; 0 (control), 100, 200 and 300 mg kg-1 of soil as the first factor, and the foliar application of SA at 3 levels...
متن کاملInfrared Warming Reduced Winter Wheat Yields and Some Physiological Parameters, Which Were Mitigated by Irrigation and Worsened by Delayed Sowing
Winter wheat has a central role in ensuring the food security and welfare of 1.3 billion people in China. Extensive previous studies have concluded that winter wheat yields would decrease with higher temperatures, owing to warming-induced soil drying or shortening of phenophase. Temperature in China is predicted to increase by 1-5°C by 2100, which may greatly impact plant production and cause o...
متن کاملEffect of Seed Priming by Salicylic Acid and Paclobutrazol on some Agronomical and Physiological Traits of Parsley (Petroselinum Sativum Mill.) under Drought Stress
In order to investigate the effects of seed priming by salicylic acid (SA) and Paclobutrazol (Pa) on parsley, as a medicinal plant, under drought stress, a factorial experiment, based on completely randomized design with four replications, was performed at the Research Greenhouse and Laboratory of Department of Horticulture, University of Mohaghegh Ardabili. Experimental treatments included fiv...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
زیست شناسی کاربردیجلد ۲۷، شماره ۱، صفحات ۴۵-۶۲
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023