Full Length Research Paper
Management of common
scab (Streptomyces scabies)
of potato
M. H. Hossain1
and S. K. Bhowal2*,
A. K. M. S. Haque3,
A. S. M. M. R. Khan4
Abstract
A field experiment was
conducted at OFRD, BARI,
Comilla and farmer’s field
of Matihara in Barura
upazilla under Comilla
district during the rabi
season of 2013-2014 and
2014-2015 to find out the
effect of variety, Boric
acid, Liming and poultry
refuse for controlling
common scab of potato. The
potato var. Diamant (BARI
Alu-7), Cardinal (BARI
Alu-8) and Asterix (BARI
Alu-25) were used. Seven
treatments i.e. T1
= Tuber of Cardinal (BARI
Alu-8), T2 =
Tuber of Asterix (BARI
Alu-25), T3 =
Seed treatment with 3% Boric
acid before sporting, T4
= 3% Boric acid as spray at
50 days after planting, T5
= Liming @ 150 kg ha-1
were applied 7 days before
planting, T6=Fresh
poultry refuse @ 5 t ha-1
were applied 21 days before
planting and T7
=Untreated control were used
as check in this experiment.
Out of seven treatments
Diamant (BARI Alu-7) was
used in five treatments (T3-T7).
From the research findings
it was revealed that in both
on-station and on-farm
situation, T2 =
Tuber of Asterix (BARI
Alu-25) and T3 =
Seed treatment with 3% Boric
acid before sporting gave
the best result among all
the treatments to control
per cent common scab
incidence with higher tuber
yield followed by T6
= Fresh poultry refuse
@ 5.0 t ha-1 were
applied 21 days before
planting in case of both the
consecutive years. The
untreated control treatment
produced maximum disease
incidence and minimum tuber
yield in both the years.
From cost and return
analysis, it was observed
that the highest gross
return and gross margin were
also recorded from the same
treatment such as T2
and T3,
respectively in case of on
station and farmers field in
both the years where the
minimum gross return and
gross margin was obtained
from untreated control
plots.
Key words: Streptomyces
scabies,
Incidence, management
approach, potato common
scab, yield and yield loss.
[Full-Text PDF]
[TOC]