DIFFERENT TECHNIQUES FOR DIAGNOSTIC OF POTATO VIRUSES: A BRIEF REVIEW

Potato is ranked fourth among the food crops and fifth for human consumption. It provides more yield as compared to cereals and gives more calories. Fungal, viral, thyroid, bacteria, nematode, phytoplasmas and abiotic factors play a pivotal role in yield reduction of potato crop. 38 different potato viruses naturally infect potato crops and PVA, PVM, PVS, PVX, PVY, PLRV and PMTV are reported in three consecutive potato crop of Pakistan. Increasing incidence of PVX and PVY in main potato growing areas of is getting an alarming position and PLRV has caused significant yield losses. The present review article demonstrates different techniques for identification and detection of these viruses..