10.31727/gzb Glasnik Zaštite Bilja 0350-9664 2584-3265 Zadružna štampa Zadružna štampa Maksimirska 132, Zagreb, Hrvatska info@zadruzna-stampa.hr www.zastitabilja.com.hr 10.31727/gzb.45.3.5 Stručni rad Professional paper Uloga biostimulatora u smanjenju stresa biljaka The role of biostimulants in reducing plant stress Mešić Aleksandar amesic@agr.hr 1 Pajač Živković Ivana 1 Vourka Aleš 1 Židovec Vesna 1 Duralija Boris 1 Agronomski fakultet, Sveučilište u Zagrebu, Hrvatska 14 6 2022 45 3 38 42 11 10 2021 14 3 2022 Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. Ovo je članak s otvorenim pristupom distribuiran pod uvjetima licence Creative Commons Attribution, koji dopušta neograničenu upotrebu, distribuciju i reprodukciju u bilo kojem mediju, pod uvjetom da se izvorno djelo pravilno citira. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Biostimuatori su (ne-hranjive) tvari ili mikroorganizmi koji pospješuju procese hranidbe biljaka i doprinose smanjenju posljedica stresa uzrokovanog abiotičkim i biotičkim čimbenicima. Mogu biti mikrobni (korisne bakterije i gljive) i nemikrobni (huminske kiseline, aminokiseline, ekstrakti morskih algi, kitozan i anorganski biostimulansi). Različitim mehanizmima djelovanja biostimulatori potiču učinkovitije iskorištavanje hraniva, otpornost biljaka na stres i povoljno djeluju na kvalitativna svojstva biljaka. Uslijed restrikcija u primjeni sredstava za zaštitu bilja i gnojiva, kao dio alternativnih rješenja pojavljuju se biostimulatori.

Biostimulants are (non-nutrient) substances or microorganisms that improve plant nutrition processes and help reduce the effects of stress caused by abiotic and biotic influences. They can be microbial (beneficial bacteria and fungi) and non-microbial (humic acids, amino acids, seaweed extracts, chitosan and inorganic biostimulants). Through their various mechanisms of action, biostimulants enhance the efficiency of nutrient utilization, the stress resistance of plants and have a positive effect on the qualitative characteristics of plants. Due to the limitation of applicable pesticides and fertilizers, biostimulants are also a part of the alternative solutions.

 biostimulatori stres homeostaza mikoriza usvajanje hraniva biostimulants stress homeostasis mycorrhiza nutrient uptake