Foliar Application of Biostimulants and the Antioxidant Properties of Soybean Seeds

Abstract

The study was carried out in 2014-2016 in Perespa, Poland. Soybean seeds Mavka cultivar were sown in the third decade of April. During the growing season four biostimulants: Kelpak SL (Eclonia maxima extract), Terra Sorb Complex (free amino acids), Atonik (phenolic compounds) and Tytanit (titanium) were used in four combinations each other, using lower or higher concentrations and single or double foliar spraying. All the results were compared to control (no biostimulant applied). After harvesting the plants, the antiradical activity of the seeds against ABTS •+cation radical was evaluated. Biostimulators enhance the yield quality without affecting the environment, thus they are recommended for use in sustainable agriculture. It was determined that the foliar application of Terra Sorb Complex had the most favorable influence on the studied property.

BIODIVERSITY OF FUNGI COLONIZING SCORZONERA (Scorzonera hispanica L.) CULTIVATED WITH THE USE OF BIOSTIMULANTS

“…Chitosan stimulated seed germination and growth of carrot plants [Patkowska et al 2020] and Bio-Algeen S90 (seaweed Ascophyllum nodosum) growth of potato plants [ Wadas and Dziugieł 2020]. Asahi SL, a biostimulator based on nitro-phenolic compounds, stimulated seed germination, seedling growth and the increase of the biomass and yield of rape, maize, bean, soybean, pepper and tomato [Kocira 2017].…”

“…They considerably limited root colonization by polyphagous soil-borne fungi. According to Kocira [2017], biostimulators do not only stimulate the growth and development of plants and affect metabolic processes occurring in the plant but they also increase plants' resistance to stress factors, including plant pathogens. Moreover, being safe to people and the environment, they find application in protecting plants from pathogenic bacteria and fungi.…”

Growth and Yield of Three Radish (Raphanus Sativus L.) Cultivars as Affected by Tonic and Mass Plant Growth Stimulators

“…Kocira et al, (2015) found foliar application with Asahi SL as single spraying on (Phaseolus vulgaris L.) plants positively affected on yield represented by the number of pods and seeds and seeds weight compare with the control (not treated plants), however the highest thousand seeds weight was obtained in two treatments (0.1% Asahi SL spraying and control). Treating of soybean seeds with four biostimulators (Kelpak SL as a Eclonia maxima extract, Terra Sorb free amino acids Complex, Atonic as a phenolic compounds and titanium) during the growing season in a single or double foliar spraying compared to control (no bio stimulant applied) improve the yield quality without affecting the environment (Kocira et al, 2017). It was demonstrated that demonstrated that total sugars, reducing sugars and sucrose content of three table potato cultivars (Bartek, Gawin and Honorata) were increased significantly with the growth regulator Asahi®SL application (Zarzecka and Gugała, 2018).…”