Progress in potato spindle tuber viroid elimination techniques
Potato spindle tuber viroid(PSTVd)is an important pathogen that seriously affects potato pro-duction,breeding and germplasm conservation.Elimination of PSTVd is one of the important means of its prevention and control.This paper reviewed the occurrence and harm of PSTVd,the main elimination techniques.At the same time,the main problems in the elimination of PSTVd and the possible mecha-nism of its difficult elimination were analyzed,and opinions and suggestions were put forward to provide reference for the prevention and control of PSTVd.