Abstract:
The experiment was carried out in the laboratory of the Mushroom Development Institute, Savar,
Dhaka from July 2019 to December 2019 to determine the effect of the sawdust composting
period on the yield and yield attributes of different oyster mushroom varieties. The experiment
was laid out in Completely Randomized Design (CRD) with three replications. There were two
factors in this experiment. Factor A: Variety, V
1
(Pleurotus djamor), V
2
(Pleurotus ostreatus
PO10) and V
3
(Pleurotus florida) and Factor B: Days of composted sawdust, T
0
(5
days), T
2
(10 days), T
3
(15 days), T
4
(20 days), T
5
(25 days) and T
6
(30 days). In the study, the
highest number of the fruiting body (13.97), number of the effective fruiting body (11.43) and
the highest biological yield (50.12 g) was found in V
2
whereas, the lowest number of total
fruiting body (4.36), effective fruiting body (2.54) and biological yield (11.43) was observed in
V
3
. Results revealed that the maximum yield (55.00 g), the highest number of fruiting bodies
(11.57) and effective fruiting body (9.21) were observed in T
3.
The combined effect of different
mushroom varieties and composted period of sawdust showed a notable variation in biological
yield. The maximum yield (56.50 g) was produced by V
2
T
3
and the minimum yield (38.13g) was
produced by V
3
T
2
. The highest biological efficiency was obtained in V
2
T
3
which was 32.28 %
whereas, the lowest biological efficiency was obtained in V
3
T
2
sawdust which was 21.78%. This
study suggests that Pleurotus ostreatus and 15 days composted sawdust showed the best
performance among the planned treatments of the research in most of the cases.
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
HORTICULTURE
