Abstract:
ABSTRACT
An experiment was conducted at the Mushroom Culture House (MCH) and Plant
Pathology Laboratory of the Department of Plant pathology, Sher-e-Bangla
Agricultural University (SAU), during July to October 2020, to investigate the
impact of enrichment of substrate with different supplements on contaminations,
growth and yield of oyster mushroom. The experiment was followed by
Completely Randomized Design (CRD) with 3 replications. Sawdust along with
different levels of supplement (viz: Compost, Vermicompost, Mustard oil cake and
their mixtures @ 5, 10 & 15 g) were considered used as different treatments for
this present experiment. Application of different doses of supplements along with
sawdust showed significant variations in respect of the growth and yield
characteristics of mushroom. From the experiment it was revealed that the
maximum number of primordia /packet (80), number of fruiting body /packet
(54.67), number of effective fruiting body /packet (41), stipe length (2.69 cm),
length of the fruiting body (6.56 cm), breadth of the fruiting body (5.67 cm),
biological yield (153.67 g), economic yield (116.67 g), dry yield (29.33 g) and
biological efficiency (51.22 %) were observed in T
2
(10) g Compost supplemented
sawdust spawn packet. While the lowest value was observed in Control. Four
contaminants viz Penicillium sp, Rhizopus sp, Trichoderma sp, Aspergillus sp were
isolated and identified from the contaminated spawn. There was no contamination
was observed in T
1
, T
2
, T
3
, T
4
,
T
10
and T
during the whole period of experiment
whereas the highest contamination severity (77.33%) was recorded from 5g
mustard oil cake treated packet at 60 DAT.
11
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 (M.S.)
IN
PLANT PATHOLOGY
SEMESTER: JANUARY - JUNE, 2021
