Abstract:
The experiment was carried out at the mushroom culture house of Mushroom
Development Institute, Saver, Dhaka and central laboratory of SAU during the
period from October 2019 to March 2020. The experiment was conducted to
compare different strains of maple oyster mushroom on contaminants, growth
and yield contributing characters. Seven strains of Pleurotus cystidiosus, viz.
Pcys-1, Pcys-2, Pcys-3, Pcys-4, Pcys-5, Pcys-6 and Pcys-7 and three different
substrates S
1
(Saw dust), S
2
(Rice straw), S
(Saw dust + Rice straw) were used
in this experiment. The experiment was laid out in Completely Randomized
Design (CRD) with four replications. Trichoderma sp, Alternaria sp and
Aspergillus niger were identified as contaminants, where green mold was
detected as the major one. The highest contamination incidence (100%) was
observed in S
1
P
6
, S
1
P
7
and S
3
P
2
3
, whereas the lowest incidence (60%) was
recorded from S
1
P
. The lowest days (7 days) required for mycelium running
on spawn was found in S
1
1
P
1
, S
1
P
2
, S
1
P
3
, S
1
P
4
and S
1
P
. No mycelium running
was observed in Pcys-6 and Pcys-7. The highest biological yield (98.50 g),
economic yield (95.75 g) and biological efficiency (53.25%) was found from
S
2
P
1
5
, whereas the lowest biological yield (65.25g) was found from S
. The
highest diameter (7.13 cm) of pileus was recorded from S
3
P
whereas the
lowest diameter (4.13 cm) of pileus was found in S
1
P
. Rice straw showed
better performance followed by saw dust and combination of the both rice
straw and saw dust during cultivation.
2
Key words: Pcys, Substrate, Biological yield, Economic yield, Biological
Efficiency
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
IN
PLANT PATHOLOGY
