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Evaluation of yield of
oyster mushroom (Pleurotus pulmonarius) grown on
cotton waste and cassava peel
Grillo Joseph Adebayo1*, Banjo Nusirat Omolara2
and Abikoye Elizabeth Toyin2
1Department
of Microbiology, Lagos State University, Ojo, P. M. B 1087,
Apapa, Nigeria.
2Federal
Institute of Industrial Research, Oshodi, P. M. B 21023,
Ikeja, Nigeria.
*Corresponding author. E-mail:
jaagrillo@yahoo.com.
Tel: 08055318821, 07023316275, 08034670963.
Accepted
17 September, 2008 |
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This work evaluated the yield of Pleurotus pulmonarius
on different mixtures of cotton waste and cassava peel.
P. pulmonarius demonstrated significantly higher
colonization rate on cotton waste substrate (100 g cotton
waste) 3 weeks after inoculation of spawn than any other
substrate mixtures. Cotton waste had the shortest time for
full mycelial ramification (3 weeks) and mushroom primodial
appearance (31/2 weeks). At 7th
week of cultivation, substrate mixtures; 20 g cotton waste +
80 g cassava peel and the cassava peel substrate (100 g) had
not ramified, therefore, no appearance of mushroom pinhead.
The highest yield was observed on 100 g cotton waste with
mushroom yield of 79.4 g followed by 80 g cotton waste + 20
g cassava peel with 72.0 g. Cassava peel (100 g) produced no
mushroom fruit. The least mushroom yield of 3.0 g was
obtained from the substrate mixture 20 g cotton waste + 80 g
cassava peel. The highest number of flushes obtained was 4
recorded for substrate mixtures 70 g cotton waste + 30 g
cassava peel, 50 g cotton waste + 50 g cassava peel, 40 g
cotton waste + 60 g cassava peel and 100 g cotton waste. The
results showed that cotton waste was a better substrate for
cultivation of P. pulmonarius than cassava peel.
However, with the high availability of cassava peel in
Nigeria, the potential use of this waste as substrate
adjunct (at 20% of substrate) can be suggested based on the
findings of this study. It can be deduced from this study
that cassava peel may be used for mushroom cultivation if
supplemented with a good nitrogen source.
Key
words:
Mushrooms, Pleurotus pulmonarius, cotton waste,
cassava peel. |
