20.500.12556/RUL-191290 Vpliv dveh mikrobnih pripravkov na rast paprike (Capsicum annuum) in okužbo s patogenom Verticillium dahliae v lončnem poskusu The effect of two microbial preparations on the growth of pepper (Capsicum annuum) and infection with the pathogen Verticillium dahliae in a pot experiment Uporaba antagonističnih gliv postaja vse bolj uveljavljena praksa v rastlinski pridelavi. Z vzpostavitvijo simbiotskega odnosa rastlinam omogočijo boljšo rast, z antagonističnim delovanjem pa lahko zatirajo rastlinske patogene. V poskusu smo preverjali učinkovitost fungicida Polyversum (aktivna snov Pythium oligandrum sev M1) in mikrobiološkega pripravka Tricho Immun (aktivni snovi Trichoderma afroharzianum Chaverri sev TR04 in Trichoderma simmonsii sev TR05) na rast in pridelek paprike (Capsicum annuum L.) ter možnosti uporabe za zatiranje talnega patogena Verticillium dahliae ob različnih terminih aplikacije pred sajenjem in po sajenju rastlin v lonce. Izvedli smo dvofaktorski poskus, v katerem je en faktor predstavljala okužba s patogenom, drugi pa tretiranje z mikrobnimi pripravki. Spremljali smo višino rastlin, vsebnost klorofila (SPAD), izmerili smo maso, število in kakovost plodov, pridelek, maso nadzemnega dela rastlin in maso korenin ter prisotnost patogena v steblih. Največji povprečni pridelek so dosegle rastline, pri katerih patogena nismo dodali in smo jih pred sajenjem namakali v suspenzijo pripravka Tricho Immun (7466 g/m²). Pripravek Tricho Immun se je izkazal za najučinkovitejšega tudi pri spodbujanju rasti nadzemnega dela rastlin. Masa korenin je bila največja pri metodi namakanja sadik v suspenzijo pripravkov Tricho Immun s 172 g in Polyversum s 166 g pri rastlinah brez dodanega patogena. Zmanjšanja negativnega vpliva patogena V. dahliae na rast paprike kljub uporabi fungicida in mikrobnega pripravka nismo dosegli, kar smo potrdili tudi z laboratorijskim preverjanjem prisotnosti patogena v steblih paprike. The use of antagonistic fungi is becoming an increasingly common practice in crop production. By establishing a symbiotic relationship with plants, these fungi promote plant growth, while their antagonistic activity enables them to suppress plant pathogens. Therefore, the aim of this study was to evaluate the effectiveness of the fungicide Polyversum (active ingredient: Pythium oligandrum strain M1) and the microbial preparation Tricho Immun (active ingredients: Trichoderma afroharzianum strain TR04 and T. simmonsii strain TR05) on the growth and yield of pepper (Capsicum annuum), as well as their potential for controlling the soil-borne pathogen Verticillium dahliae when applied at different times, before and after transplanting the plants in pots. A two-factor experiment was conducted, with pathogen inoculation as one factor and treatment with microbial products as the other. Plant height, chlorophyll content (SPAD), fruit weight, fruit number and quality, yield, shoot fresh weight, root fresh weight, and the presence of the pathogen in stem tissues were evaluated. The highest estimated average yield was achieved by plants that were not inoculated with the pathogen and were irrigated with a Tricho Immun solution (7466 g/m²). Tricho Immun also proved to be the most effective treatment for promoting plant growth, as plants treated with the microbial preparation achieved the greatest average plant height. The highest root fresh weight was recorded in seedling soaking in solutions of both Polyversum (166 g) and Tricho Immun (172 g). Despite the application of the fungicide and the microbial preparation, the control of V. dahliae infection was unsuccessful, that was confirmed by laboratory testing of the presence of the pathogen in pepper stems. Trichoderma spp. Pythium oligandrum antagonistične glive Verticillium dahliae paprika Capsicum annuum Trichoderma spp. Pythium oligandrum antagonistic fungi Verticillium dahliae pepper Capsicum annuum true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2026-11-14 07:16:02 2026-11-14 07:16:12 2026-11-15 04:29:39 0000-00-00 00:00:00 2026 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 303126 65958.pdf 65958.pdf 1 952B08A0ADFB8C536D02FE65F0547A8D 29ea67788b4027b9fceceb1ca1d3f9c26989b40e6d865b8b08d2733f015e6605 c5a778b8-dff2-11f1-aea2-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=253351 Biotehniška fakulteta 0 0 0