Effect of biostimulators on sunflower germination energy and seed germination

Abstract

The aim of this paper was to examine the effect of biostmulators on seed quality parameters - germination energy and germination, depending on the genotype and age of sunflower seeds. Testing has been conducted at the Institute of Field and Vegetable Crops on four cytoplasmic male sterile lines: OCMS-98 (L1), HA-NS-26 (L2), PH-BC2-74 (L3) and VL-A-8 (L4). Seed was produced in the period from 2010 to 2012. Two seed variants were tested - treated with metalaxyl-m and non-treated. Prior to sowing, seed was treated with fertilizes Slavol S, Bioplant Flora, and their combination. Selecting the right biostimulator for a particular genotype may lead to increased germination energy and germination, which has the positive effect on the number of plants per unit area, and hence the yield.

Cilj rada bio je da se ispita uticaj biostimulatora na parametre kvaliteta semena - energiju klijanja i klijavost, u zavisnosti od genotipa i starosti semena suncokreta. Testiranje je sprovedeno u novosadskom Institutu za ratarstvo i povrtarstvo na četiri citoplazmatski muško sterilne linije: OCMS- 98, HA-NS-26, PH-BC2-74 i VL-A-8. Seme je proizvedeno u periodu 2010-2012. Testirane su dve varijante semena: tretirano metalaksilom-m i netretirano. Seme je pre setve tretirano komercijalnim preparatima Slavol S, Bioplant Flora i njihovom kombinacijom. Ispitivanje je pokazalo da dejstvo biostimulatora zavisi od genotipa, ali i od starosti semena. Odabirom adekvatnog biostimulatora za određeni genotip može se postići povećanje energije klijanja i klijavosti, što povoljno utiče na broj biljaka po jedinici površine, a samim tim i na prinos. Međutim, izborom neadekvatnog biostimulatora ili njihove kombinacije može se postići suprotan efekat od željenog, odnosno da se parametri kvaliteta semena smanje u određenoj meri.