جستجوی مقالات مرتبط با کلیدواژه « پروتیین » در نشریات گروه « زیست شناسی »

Peanut is one of the most important plants in the legume family and are rich in oil and protein. In order to investigate the effect of different levels of sulfur fertilizer (S) and foliar application of zinc (Zn) on the yield and concentration of oil and protein, a factorial experiment was conducted in a randomized complete block design with three replications for two year (2019 and 2020) at Astana-Ashrafieh city, Gilan province. The studied factors were included S fertilizer (from gypsum source) at four levels (0, 20, 40 and 60 kg ha-1) and Zn fertilizer (from zinc chelate source) at three levels (0, 1000 and 2000 ppm). The results showed that the interaction of S and Zn fertilizers had a significant effect on pod yield, grain yield, number of grains and pods, protein and oil concentration. Mean comparison of the studied traits also showed the highest pod yield (156 g plant-1) in the treatment of 40 kg S + 1000 ppm Zn, while the highest grain yield (92.3 g plant-1) in the treatment of 60 kg S + 2000 ppm Zn was obtained. The highest weight of 100 grains (1283.6 g) belonged to the treatment of non-using of S + 1000 ppm Zn. The highest protein concentration (17.94%) was observed from treatment of non-using of S + 2000 ppm Zn, and oil concentration (46.09%) in sulfur fertilizer treatment of 60 kg S + 1000 ppm Zn. Based on the results of this experiment, it can be stated that the simultaneous application of sulfur fertilizer and zinc foliar application significantly increases grain yield and improves yield-related traits in the peanut and it can be recommended for the climatic conditions of Gilan.

To investigate the effect of selenium and calcium foliar application on antioxidant enzymes activity and some biochemical traits of safflower CV. Goldasht under drought stress, an experiment as a split plot based on a randomized complete block design with three replications was performed in the Agricultural Research Institute of the University of Zabol (Chah Nimeh). Experimental treatments included cut-off irrigation levels based on plant growth stages at three levels (complete irrigation throughout the growing season, R1=irrigation up to terminal bud forms 0.25 inches in diameter and R2=irrigation up to completed flowering as the main factor and spraying at four levels F1= control (pure water), F2= Hamoon Green 1 liter in 10 liters + calcium carbonate, F3= Hamoon Green 1 liter in 20 liters + calcium carbonate and F4= Hamoon Green 1 liter in 30 liters + calcium carbonate was the secondary factor. The highest activity of catalase, ascorbate peroxidase, polyphenol oxidase, and peroxidase enzymes, respectively (35.61, 66.67, 14.08, and 14.33 Umg protein min-1), phenol and flavonoid, respectively. (28.46 and 17.01 mg g-1 FW), soluble carbohydrates (0.957 μmol glucose g-1 FW) and protein (0.021 mg g-1 FW) from irrigation up to terminal bud from 0.25 inches in diameter combined with spraying 1 liter in 10 liters of water + calcium were obtained. Foliar application increased the above traits at any stress level. In general, it seems that spraying 1 liter in 10 liters of water + calcium carbonate can mitigate the harmful effects of drought stress by inducing an antioxidant system and increasing the activity of antioxidant enzymes.