Cumulative effect of neem powder, Azotobacter and indole-3-acetic acid (IAA) growth hormone on yield potential of Agaricus bisporus (Lange) Sing
Loading...
Files
Date
2017
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Punjab Agricultural University, Ludhiana
Abstract
A. bisporus is the most popular cultivar among the artificially grown fungi in the world. The
mushroom cultivation using agricultural crop lignocellulosic residues has been standardized
but the supplementation accurately equilibrates the nitrogen content and the C/N ratio. Neem
powder, Azotobacter and Indole-3-acetic acid were used as supplements at different stages of
Agaricus bisporus U3 and S11strains. The neem powder was supplemented @ 0.5% to 2.0%
in ready compost and spawned at @ 0.7%. The yield potential of Agaricus bisporus U3 was
significantly increased upto 29.47% when neem powder was supplemented @ 0.5% and 1.0%
at the time of spawning. Azotobacter was added in casing soil @50ml (107-108cfu/ml) in 5kg
casing mixture along with neem powder. Use of Azotobacter in the casing had shown 16.0%
increase with respect to control I (No addition) a further increase upto 19.41% in yield was
recorded, when Azotobacter was applied on bags filled with compost supplemented with
0.5% and 1.0% neem powder respectively. IAA spray at the time of pinhead formation and at
the time of 1st flush and 2nd flush showed no significant increase in yield with respect to
control I (No addition). However, use of IAA on bags supplemented with 0.5% and 1.0%
neem powder and Azotobacter at the time of pinhead formation indicated maximum yield
potential of Agaricus bisporus U3. The observations made on quality parameters indicated 2.8
to 3.2 cm stipe length, 3.8 to 4.3cm pileus diameter, color 52.11 to 89.67 L-value and 5125to
11143 hardness was observed in Agaricus bisporus U3. In Agaricus bisporus S11 showed
56.23% increase in yield when neem powder was supplemented @1.0% at the time of
spawning. Use of Azotobacter in the casing had shown 31.00% increase with respect to
control I (No addition) a further increase of 17.46% in yield was recorded, when Azotobacter
was applied on bags filled with compost supplemented with 1.0% neem powder. IAA spray at
the time of pinhead formation and at the time of 1st flush and 2nd flush showed no significant
increase in yield with respect to control I (No addition). However, use of IAA on bags
supplemented with 0.5% and 1.0% neem powder, Azotobacter at the time of 1st flush and 2nd
flush indicated maximum yield potential of A. bisporus S11. While in Agaricus bisporus S11
the observations made on stipe length, pileus diameter, color and hardness indicated 2.8 to
3.2cm stipe length, 2.9 to 4.3cm pileus diameter, color 48.3 to 75.9 L-value and 4120 to10364
hardness was observed.
Description
Keywords
null