The Effect of Trichoderma citrinoviride Treatment under Salinity Combined to Rhizoctonia solani Infection in Strawberry (Fragaria x ananassa Duch.)

Trihoderma citrinoviride protects plants from diseases by functioning as antagonists of many pathogenic fungi or triggering the antioxidant defense system in plants. In present study, to uncover possible alleviative role Trichoderma against salinity and Rhizoctonia solani infection, strawberry were pretreated then subjected salinity, R. combined solani. The effect T. on alleviation effects salt stress infection was investigated analysing leaf dry weight, PSII efficiency, activity some enzymes leaves improved competitive capability infection. It showed 79% inhibition growth pathogen reduced 63% severity disease leaves. pretreatment maximized plant weight. citrinoviride-pretreated higher levels efficiency (Fv/Fm). Decreased lipid peroxidation H2O2 accumulation compared untreated seedlings under observed. Trichoderma-pretreated –untreated respond differently means defense. As seedlings, treated significantly lower activities enzymes, superoxide dismutase (SOD), peroxidase (POX), cell wall (CWPOX) indicating that might sense seedlings. study reports effective adaptive strategy potential alleviating negative impact strawberry.