Physical, chemical and physiological properties of the plant leaves and stems play an important protective role against pathogens. Morphological, anatomical and serological studies were conducted on sweet potato varieties ...

Sweetpotato virus disease (SPVD) is caused by dual infection of the aphidborne sweetpotato feathery mottle virus (SPFMV) and the whitefly-borne sweetpotato chlorotic stunt virus (SPCSV) and it greatly reduces tuber ...