Twelve isolates were selected for evaluation for their potential to elicit drought tolerance in greenhouse-grown ‘Roma Organic’ tomatoes. The overall performance of the population decreased when cultured under conditions of decreasing matric water potential (0.0, –2.8, –4.8, and –8.5 Ψ).
Variable growth in low moisture environments was observed among Trichoderma isolates from Nepal, Ohio, and commercial sources using in vitro assays.
Our objective was to evaluate a collection of Nepalese Trichoderma isolates and their efficacy to improve tomato ( Solanum lycopersicum) growth under water deficit. The beneficial effects of Trichoderma on water deficit stress are poorly understood and may be isolate-specific. Symbiotic fungi in the genus Trichoderma can induce abiotic stress tolerance in crops.
2Department of Plant Pathology, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH, United States.1Department of Horticulture and Crop Science, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH, United States.
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