20.500.12556/DKUM-97745 Testiranje biostimulanta "Tricho Immun" na pridelek in zatiranje bolezni na sorti Traminec in treh sortah vinske trte, tolerantnih na bolezni magistrsko delo Effect Testing for the Biostimulant ‘Tricho Immun’ on Yield and Disease Suppression in the Traminec Variety and in Three Disease-Tolerant Grapevine Varieties V magistrskem delu je bilo ovrednoteno delovanje biostimulanta TRICHO IMMUN® na pridelek grozdja in pojav glivičnih bolezni vinske trte, s poudarkom na bolezni ESCA, peronospora, oidij in antraknoze. Poskus je bil izveden leta 2024 v vinogradu na območju severovzhodne Slovenije pri treh na bolezni tolerantnih sortah ('Johanniter', 'Souvignier gris' in 'Muscaris') ter sorti 'Traminec'. V različnih škropilnih programih smo preizkušali pripravek na osnovi gliv iz rodu Trichoderma, pripravka VINTEC® in TRICHO IMMUN®, ekološki program pa je vključeval uporabo bakrovih in žveplovih fungicidov ter netretirano obravnavo (kontrolo). Intenziteta okužbe je bila ocenjena z vizualnim vrednotenjem listov in grozdov v skladu s standardi EPPO, učinkovitost varstva pa je bila izračunana po Abbottovi formuli. Rezultati so pokazali, da je bila učinkovitost pripravka TRICHO IMMUN® pri zatiranju oidija ob koncu sezone manjša, približno 30–35 %, medtem ko je program IPM dosegel 96,23-% učinkovitost na grozdju, pri peronospori pa sta TRICHO IMMUN® in VINTEC® pokazala majhno do zmerno učinkovitost, program IPM je dosegel več kot 90-% učinkovitost na listni površini in do 100-% na grozdju v sredini sezone. Najvišji pridelek je bil izmerjen pri integriranem programu IPM (8980 kg/ha), pridelek pri tretiranju s TRICHO IMMUN® je bil 6217 kg/ha, pri VINTEC® je bil pridelek 6703 kg/ha. V netretirani kontroli je bil pridelek v primerjavi z IPM več kot 90 % nižji. Pri bolezni ESCA delež okuženih trsov med obravnavami ni bil statistično značilno različen (6,25–25 % skozi vegetacijo), vendar se je intenzivnost simptomov razlikovala, saj je ob koncu sezone (5. 9. 2024) delež listov z izrazitimi simptomi predstavljal 39,75 % pri TRICHO IMMUN®, 41,75 % pri VINTEC®, 37,50 % pri IPM in 53,50 % v kontroli, kar kaže na zmanjšanje izraženosti simptomov pri uporabi bioloških pripravkov. Ugotovili smo, da pripravek TRICHO IMMUN® ne zagotavlja visoke učinkovitosti pri zatiranju peronospore in oidije, vendar prispeva k zmanjšanju intenzivnosti simptomov bolezni ESCA. Pri tolerantnih sortah je bila učinkovitost varstva z uporabo pripravka TRICHO IMMUN® primerljiva z ekološkim programom na osnovi bakra in žvepla. Rezultati kažejo, da je TRICHO IMMUN® primeren kot dopolnilni ukrep v ekološkem in integriranem varstvu vinske trte, pri čemer je njegova uporaba posebej smiselna pri tolerantnih vrstah in zmernem bolezenskem pritisku. This study evaluates the efficacy of the biostimulant TRICHO IMMUN® on grape yield and the occurrence of fungal diseases in grapevine, specifically ESCA, downy mildew, powdery mildew, and anthracnose, through an experiment conducted in 2024 in northeastern Slovenia, using the 'Traminec' variety and three disease-tolerant varieties ('Johanniter', 'Souvignier gris', and 'Muscaris'). Various spray programs were tested, including Trichoderma-based preparations (VINTEC® and TRICHO IMMUN®), an organic program with copper and sulfur fungicides, and an untreated control with the disease intensity assessed via EPPO standards and the protection efficacy calculated using the Abbott formula. The results indicated that TRICHO IMMUN® achieved a relatively low efficacy of 30–35% against powdery mildew at the end of the season, compared to 96.23% in the integrated pest management (IPM) program, while both TRICHO IMMUN® and VINTEC® showed low to moderate efficacy against downy mildew, and the IPM program reached over 90% efficacy on leaves and up to 100% on clusters mid-season. The highest yield was recorded in the IPM program (8,980 kg/ha), followed by VINTEC® (6,703 kg/ha) and TRICHO IMMUN® (6,217 kg/ha), while the untreated control yield was more than 90% lower than the one in IPM. The proportion of ESCA infected vines (6.25–25%) did not differ statistically between treatments, but the symptom intensity did differ at the end of the season (September 5, 2024). It was lower in the TRICHO IMMUN® (39.75%), VINTEC® (41.75%), and IPM (37.50%) treatments compared to the control (53.50%), suggesting that biological preparations reduced symptom expression. The study concludes that while TRICHO IMMUN® does not provide high efficacy against downy and powdery mildew, it does contribute towards reducing ESCA symptom intensity and performs comparably to organic copper and sulfur programs in tolerant varieties, making it a suitable supplementary measure in organic and integrated grapevine protection, particularly under moderate disease pressure. biostimulanti v vinogradništvu pripravki na osnovi Trichoderme zatiranje bolezni vinske trte tolerantne sorte vinske trte sorta 'Traminec' biostimulants in viticulture Trichoderma- based products grapevine disease control disease- tolerant grapevine cultivars 'Traminec' variety true true false J. Pulko Slovenski jezik Angleški jezik Magistrsko delo/naloga 2026-04-09 12:57:11 2026-06-02 13:06:50 2026-06-03 03:15:24 0000-00-00 00:00:00 2026 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (VIII, 51 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 634.8:631.811.98(043)=163.6 280139779 MAG_Pulko_Jakob_2026.pdf MAG_Pulko_Jakob_2026.pdf 1 B775E220288EF547FE95B421C002AFCE a790a014c0a75a4ae7d5ee0087a470d6b7bf458c4910fdbd547ba8e0c10c4be6 95f1221c-3eed-11f1-a8d8-00155d0001a1 https://dk.um.si/Dokument.php?lang=slv&id=205576 Fakulteta za kmetijstvo in biosistemske vede 0 0 0