AN
INVESTIGATION ON THE RHIZOCTONIA SOLANI INFECTING POTATO
Mahbubul
kabir Himel*, Abdul Mannan Akanda and Abul khair
*Corresponding author;
Email: himelbotju@juniv.edu
Abstract
Investigations were carried out on
field disease of potato in BADC farm at Domar, Nilphamari.It was appeared that
at least fourteen different symptoms, such as, leaf rosette, stiffness of the
stem, production of aerial tuber, shortening of stolon, erupted tuber eyes,
scurfing and development of light to dark brown lesions on the root as well as
on the stem were developed in potato due to infection of R. solani. In
many cases, the growing potato plants developed mild leaf curl and yellowing
which seemed to be the characteristic symptoms produced by two major potato
viruses – Potato virus Y (PVY) and Potato leaf roll virus (PLRV).
However DAS-ELISA proved that those were not produced by PVY and PLRV.
Moreover, all the symptoms were not associated with all the potato varieties
surveyed. Rossette was absent in Asterix whereas stiffness of stem was found in
Diamant and Cardinal. Cardinal and Asterix were free from aerial tuberization
and erupted tuber eyes though Granula was free only from the later one. The
result of the study demonstrated that the disease symptoms caused by R.
solani varied depending on the potato varieties.
Keywords: R.
solani., potato diseases , Diamant, Felsina, Cardinal,
Granula, Asterix.
Download PDF: Click
here
Return Volume: Journal of
Experimental Biosciences 6(1): January 2015
