Abstract:
The experiment was conducted at the laboratory and culture house of Mushroom
Development Institute, Sobhanbang, Savar, Dhaka during the period from March to August
2021 to study the effect of different substrate amount and spawning method on the growth
and yield of ear mushroom. The experiment consisted of two factors. Factor A: Six
different amount of substrates viz., B
1
=250 g, B
2
ii
= 500 g, B
3
= 750 g, B
4
=
1250 g, B
6
= 1500 g and Factor B: Three different spawning methods viz., M
1
= Top
spawning, M
2
= Thorough spawning and M
3
= Layer spawning. The experiment was laid
out in completely randomized design with four replications. Data on different growth and
yield parameters were recorded and significant variation was found in different studied
parameters. In case of different substrate amount B
5
treatment gave the maximum number
of fruiting body per packet (24.02), weight of individual fruiting body (3.22 g), length of
pileus (9.15 cm), thickness of pileus (2.75 mm), diameter of pileus (6.92 cm), biological
yield (275.40 g), economic yield (259.47 g), dry yield (61.89 g), biological efficiency
(64.13%) and benefit cost ratio (3.37). In case of spawning method, the highest mycelium
running rate (0.66 cm), number of fruiting body per packet (24.88), weight of individual
fruiting body (3.02 g), length of pileus (9.68 cm), thickness of pileus (2.63 mm), diameter
of pileus (5.56 cm), biological yield (262.99 g), economic yield (237.46 g), dry yield (56.71
g), biological efficiency (67.76%) and benefit cost ratio (3.62) was recorded from M
3
treatment. In case of combined effects, highest number of fruiting body per packet (24.83),
length of pileus (9.74 cm), thickness of pileus (2.87 mm), diameter of pileus (7.22 cm),
weight of individual fruiting body (3.39 g), biological yield (277.81 g), economic yield
(263.70 g), dry yield (61.98 g), biological efficiency (78.36%) and benefit cost ratio (4.12)
was recorded from B
5
M
3
treatment combination. In this experiment, due to the interaction
between B
5
substrate amount with M
3
spawning method showed better performance in
growth and yield of ear mushroom.
Description:
A Thesis
Submitted to Department of Entomology,
Faculty of Agriculture.
Sher-e-Bangla Agricultural University,
Dhaka-
In partial fulfillment of the requirements for the degree of
MASTERS OF SCIENCE (MS)
IN
DEPARTMENT OF HORTICULTURE
