Abstract:
The experiment was conducted at the Mushroom Development Institute (MDI), Savar,
Dhaka, during the period from June to September 2020 to find out the performance of
different supplements and their levels on growth and yield of three oyster mushroom
species. The experiment consisted of three Oyster mushroom species viz. V
1
(Pleurotus djamor), V
2
(Pleurotus florida) and V
3
(Pleurotuso streatus po10) with
seven supplements to sawdust substrate, viz. S
1
(Wheat bran; WB), S
2
(Maize powder;
MP), S
3
(Rice straw; RS), S
4
(Wheat bran + maize powder; 1:1), S
5
(Maize powder +
rice straw; 1:1), S
6
(Rice straw + wheat bran; 1:1) and S
7
(Wheat bran + maize powder
+ rice straw; 1:1:1). The experiment was laid out in Completely Randomized Design
(CRD) with three replications. In case of the performance of mushroom species, V
1
(Pleurotus djamor) showed best performance on the most of the growth, yield
contributing parameters and yield compared to V
2
(Pleurotus florida) and V
3
(Pleurotuso streatus po10). Similarly, the performance of supplements to sawdust
substrate, the highest mycelium run rate, total number of fruiting body and effective
fruiting body packet
-1
, biological yield, economic yield and biological efficiency per
spawn packet were observed from the treatment S
7
(wheat bran + maize powder + rice
straw; 1:1:1) compared others whereas the lowest was from S
3
(Rice straw; RS).
Regarding combined effect of mushroom species and supplements to substrate, V
1
gave the highest mycelium ran rate (0.82 cm day
-1
) and shortest duration of mycelium
run complete, pin head initiation and pin head initiation to harvest (14.25, 20.50 and
4.00 days, respectively). V
1
S
7
also gave the highest total number of fruiting body
(24.75), number of effective fruiting body (17.13), length, diameter and thickness of
pileus (6.39, 8.33 and 1.00 cm, respectively), biological yield (183.10 g), economic
yield (173.50 g) and biological efficiency (73.24%) whereas V
1
gave least
performance. So, this treatment combination (V
1
S
7
)
can be considered as best
compared to other treatment combinations.
Description:
A Thesis
Submitted to the Department of Plant Pathology
Sher-e-Bangla Agricultural University, Dhaka
In partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
HORTICULTURE
