Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 1
Written by Maria-Alexandra MARIN, Beatrice Michaela IACOMI, Emil GEORGESCU, Stelica CRISTEA
The aim of our research has been to detect and identify the microbiota associated with sunflower seeds. Biological material was represented by seeds samples from romanian hybrids Suria CL and Demetra and from foreign hybrids ES Belfis CLP, LG5077, QC Bravo, P64LE 99, P64LE 162 and P64LE 280. Pathogens from colonies developed after six days were identified, and their incidence was calculated for both untreated seeds and treated seeds with Lumisena 200 FS. In untreated seeds samples fungi from the genera Alternaria, Aspergillus, and Rhizopus were detected as well as bacterial colonies. Alternaria spp. recorded the highest incidence on ES Belfis CLP hybrid (50%), followed by Demetra (30%). Colonies of Aspergillus spp. were detected with an incidence of 33.3% for P64LE 162 hybrid. On treated seeds, Alternaria fungi recorded 20% incidence for Demetra hybrid, and 3.3% for P64LE99 hybrid, while Penicillium spp. showed an incidence of 3.3% for Demetra hybrid. Therefore, the antifungal effect of the tested product has been observed.
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