Abstract:
Lentil (Lens culinaris) is one of the oldest and most familiar food legumes in
Bangladesh. Foot and root rot is very common disease in lentil. It causes seedling
death at early stage resulting very poor plant stand which ultimately produces
low yield. For eco-friendly management of the disease a field experiment was
conducted at Central Farm of Sher-e-Bangla Agricultural University, Dhaka1207,
during
October
2019
to
May
2020.
Susceptible
lentil
variety
BARI
Masur1
was selected as planting material. The field experiment was laid out in
randomized complete block design (RCBD) with three replications. Seven
treatments were used as organic soil amendments viz. T
0
= Control, T
1
=
Biofumigation with raddish leaf, T
2
= Biochar, T
3
= Vermicompost, T
4
=
Mushroom compost-I, T
5
= Mushroom compost-II and T
6
= Trichocompost. The
causal organism was isolated from naturally infected root of lentil and identified
as Fusarium oxysporum by observing morphological and cultural characteristics.
All organic soil amendments were applied after final soil preparation. Data were
recorded on disease incidence, plant height, number of branches per plant, pods
per plant, yield per plant and yield per plot. The lowest disease incidence (3.11%)
was recorded in Trichocompost (T
6
) at 60 DAS. The treatments also caused
appreciable improvement of plant growth over control. The tallest plant (37.33
cm), maximum number of branches (28) per plant, maximum no. of pods (47.51),
maximum seed weight per plant (0.67g), and the yield (564.99 g/plot) were also
recorded from Trichocompost (T
6
) treated plots followed by Vermicompost (T
3
),
Biochar (T
2
) and Biofumigation with radish leaf (T
1
). In this study it was found
that soil amendments with Trichocompost showed most effective in controlling
foot and root rot disease incidence with increasing yield of lentil. Furthermore,
studies have to be conducted using these organic soil amendments to unfold the
potential of other organic amendments in the management of foot and root rot of
lentil.
Description:
A Thesis
Submitted to the faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
In partial fulfillment of the requirements
for the Degree of
MASTER OF SCIENCE (MS)
IN
PLANT PATHOLOGY
SEMESTER: JANUARY-JUNE, 2021
