S13 - Session P3 - Influence of exogenous phytohormones on Green Pea (Pisum sativum L.) productivity through metabolic and physiological response

Authors: Martynas Urbutis *, Giedr Samuolien

Due to constantly changing environmental conditions plants have difficulties absorbing nutrients from the soil effectively. To prevent nutritional losses, biostimulants based on natural materials have received considerable attention. Stimulation of plants with phytohormone-based biostimulants at critical stages of organogenesis is likely to control primary and secondary metabolism to increase plant productivity and resistance to stressfull environmental factors. The research was carried out in a vegetation area with a shed. Five different types of exogenous phytohormones (kinetin (KIN), indole-3-acetic acid (IAA), gibberellic acid (GA 3 ), abscisic acid (ABA) and salicylic acid (SA)) were applied at 0, 30, 60, 90 and 120 mg l -1 concentrations, at the 14-16 BBCH (4-6 leaf) and 51-55 BBCH (when first separated buds is visible) growth stages respectively. After 5 days of each application growth and development, photosynthetic response, primary and secondary metabolites was analysed. Thus, the impact of exogenous phytohormones, seeking for higher green pea cv. Respect productivity in terms of physiological response was evaluated, in this study.