Evaluating the effect of culture filtrate of Trichoderma harzianum on the seed germination and seedling growth of Pinus sylvestris

Researchers are increasingly drawn to exploring additional potential advantages of Trichoderma spp. as the use of these microorganisms in agricultural and forestry applications, known for their notable biological activities, continues to gain popularity. In this work the isolate of Trichoderma harzianum was tested to evaluate its efficacy on the germinating of the common pine seeds and additionally, how growing the fungi on different mediums can affect its biological activities. Findings in this work proves that Trichoderma can grow differently in various media and have diverse sporophytes that differ morphologically. Moreover, using the culture filtrate of Trichoderma harzianum can enhance the germination process of the seeds and the growth of the seedlings.