Showing 2 results for Bonamid
Saeed Hosseini, Leila Shabani, Mohammad R. Sabzalian,
Volume 11, Issue 48 (5-2022)
Abstract
Biostimulants are a variety of compounds of plant and animal origin that are used to improve the quality of plant growth. In this study, which was conducted in 2021, the effect of commercial biostimulant Algabon®, algal biostimulant [seaweed extract (SWE)], and namid (amino acid biostimulant) on the plant Puccinellia distans to reduce the effects of salinity stress by improving growth conditions and absorption of elements micronutrients and macronutrients was assessed. In a factorial design with Algabon® spray (0.5 g/l) and Bonamid® (2 g/l) and salt irrigation [300 mM/l (EC = 27.18 dS/m)] on 45-day-old seedlings grown in pots, experiment was performed. The results showed that the application of this concentration of salinity alone reduced the fresh and dry weight of shoots and roots, increased of electrolyte leakage, content of macro- and micronutrients of shoots and roots and their transfer factor, decreased bioaccumulation factor of Cu, Fe, K, Na, P, Mn and Zn (significant at P<0.05). Pre-treatment with biostimulants in salinity condition (SC) and non-salinity condition (NSC) reduced the effects of salinity stress in all indicators and Bonamid® in contrast to Algabon®, has better physiological effects on the plant. In general, it seems that biostimulants are also effective in reducing salinity stress in a salinity-compatible halophyte plant, but the method of use and amount of biostimulants need further study.
Marzieh Shahverdi, Leila Shabani, Somayeh Reiisi,
Volume 13, Issue 59 (4-2024)
Abstract
Treatment of seeds with biostimulants is an important technology to deal with heat stress during planting and improve yield, which all starts with seed germination. Therefore, the current study aims to investigate the effect of seaweed and amino acid-derived biostimulants, on the improvement of heat stress in the seed germination stage of cool-season plants (lettuce). The experiment was set up in a completely randomized design, with treatments repeated three times. For this purpose, seeds were pretreated for 2 hours in an aqueous solution of 0.5 g/L Algabon® and 2 g/L Bonamid®. Then, the seeds were incubated in the dark for 72 hours at 28°C (control) and 35°C (heat stress). In cool-season seedlings (lettuce), pre-treatment with biostimulants Algabon and Bonamid led to an increase in indicators of germination percentage, root length, shoot length, fresh weight, dry weight, and also the activity of beta-amylase, protease and the amount of soluble sugars under heat stress (temperature of 35°C). The results showed that heat stress has created conditions of oxidative stress (production of H2O2) in the seeds of cool-season plants, although pre-treatment of cool-season seeds with Algabon and Bonamid led to a decrease in H2O2 production under heat stress. On the other hand, the pre-treatment of the lettuce seeds with Algabon has increased the ability of the seeds to increase the scavenging of free radicals produced during heat stress. In general, it seems that the pre-treatment of seeds with Algabon by producing some compatible osmolyte compounds and stimulating the activity of enzymes involved in germination increases the germination performance and makes the seeds of lettuce resistant to thermal stress.
