Trichoderma-Enriched Vermicompost Extracts Reduces Nematode Biotic Stress in Tomato and Bell Pepper Crops

Root-knot nematode (RKN) is a serious threat to crops worldwide due the difficulty in controlling it and limited eco-friendly alternatives deal with biotic stress causes. In present work, water-extractable fractions obtained from vermicompost (WSFv), enriched Trichoderma asperellum (WSFta) T. virens (WSFtv) were tested as biotechnological tools reduce impacts of RKN on gas exchange, water use efficiency (WUE) nutrient concentration tomato bell pepper plants. The plants infected 5000 eggs eventual J2 then treated for seven weeks. It was observed that addition WSFta, WSFtv WSFv increased CO2 assimilation, stomatal conductance WUE plants, WSFtv, conductance, while higher treatment WSFtv. fact, parameters associated exchange usually than Overall, contents N, Mg, B Mn detected when extracts applied both application fractions, inoculated or not Trichoderma, attenuates damage successfully enhanced showing could be an important promising tool reducing caused by this pathogen. We suggest can cope dilemma between growth response via stomata regulation are modulated WSF Trichoderma.