Phosphite Application Alleviates by Modulation of Photosynthetic and Physio-Biochemical Metabolites in Potato Leaves.

Potato late blight () is among the most severely damaging diseases of potato ( L.) worldwide, causing serious damages in potato leaves and tubers. In the present study, the effects of potassium phosphite (KPhi) applications on photosynthetic parameters, enzymatic and non-enzymatic antioxidant properties, hydrogen peroxide (HO) and malondialdehyde (MDA), total protein and total carbohydrate of potato leaves challenged with pathogen were investigated.