Investigating of the effect of T. harzianum AK۲۰G on leaf elements in two tomato cultivars

Trichoderma species are widely used in agriculture and industry as biopesticides and source of enzymes. In this study, the effectiveness of Trichoderma harzianum AK۲۰G on leaf elements content of two tomato cultivars (Lycopersicon esculentum Mill.) CaljN۳ and Meck Peto (PM) was studied in factorial arrangement using completely randomized design with three replications under controlled conditions. Inoculation of T. harzianum AK۲۰G in PM cultivar increased the concentration of iron, phosphorus, potassium and calcium, but in CaljN۳ cultivar, only calcium and potassium increased under the influence of this fungus and its phosphorus content decreased by ۱۱.۳%. Mycorrhizal fungi coexist with plant roots and penetrate into cortical cells, while at the same time spreading their roots into the soil, absorbing nutrients, especially phosphorus, which has little mobility, thus converting unabsorbed phosphorus into soil to phosphorus that can be used by plants. This experiment showed that the behavior of this fungus is different in different cultivars of one plant and it seems that more studies are needed to determine the exact mechanisms of the effect of this fungus in tomato cultivars

کلیدواژه ها:

Phosphorus ، Calcium ، Iron ، Potassium