The quest to boost dietary protein production from readily available and affordable sources is
ever increasing in developing countries. The indigenous edible Pleurotus species (oyster
mushrooms), which grow naturally on wood wastes, are potential protein supplements. However,
little information is available on the usage of selected tropical trees for optimum mushroom
cultivation. Therefore, this research was designed to investigate the growth and yield of oyster
mushrooms on sawdust of selected tropical trees.
Mature stems of Mangifera indica L. (PTBG0000039360), Senna siamea Lam.
(BISH0000032830) and Azadirachta indica A. Juss (BISH0000015188) were harvested and
identity authenticated at the National Horticultural Research Institute (NIHORT), Ibadan. The
samples were air-dried, separately milled into sawdust, composted and used as three substrates.
The fourth substrate was the mixed bed derived from the mixtures of the three substrates in ratio
1:1:1 by weight. Three mushroom species (Pleurotus ostreatus, P. pulmonarius and P. tuberregium)
were collected from Mycology Unit, NIHORT. A total of 108 polyethylene substrate
bags (27 for each substrate) were filled with 300 g of the sawdust, each tightly packed, sterilised
and inoculated with 30 g each of mushroom spawn. Mycelial growth was determined using
standard method. Fruiting body production was obtained for the three mushrooms on all the
substrates and sclerotia weight recorded at different Weeks of Composting Intervals (WCI) of 4,
8 and 12. Biological and production efficiencies were determined using mathematical methods.
The experiment was a 4 x 3 x 3 factorial arrangement laid out in a complete randomised design
with three replicates each. The data were analysed using descriptive statistics and ANOVA at p
The longest and the shortest mycelial extensions (13.3 and 4.6 cm) were observed in P.
pulmonarius grown on A. indica at 4WCI and 8WCI respectively. At 12WCI, the highest Fruit
Weight (FW) of 86.8±1.2 g for P. pulmonarius was observed on S. siamea which was not
significantly different from P. ostreatus (84.9±1.2 g) on M. indica. The most significant
Biological Efficiencies (BE) of 82.7% and 80.9% for P. pulmonarius and P. ostreatus at 12WCI
respectively were observed on S. siamea and M. indica. At 12WCI, the Production Efficiency
(PE) was highest (42.8%) for P. ostreatus on M. indica and 41.1% for P. pulmonarius on S.
siamea. Also, the highest mean sclerotia weight of 42.1±0.9 g was obtained for P. tuber-regium
on M. indica at 12WCI. However, at 4WCI, the least FW (13.7±0.1 g) was in P. pulmonarius
cultivated on S. siamea while the least BE (13.0%) was observed for P. pulmonarius on S.
siamea. Also, the least PE value of 4.9% for P. pulmonarius was observed on S. siamea while
the least sclerotia weight of 9.0±0.6 g was obtained on mixed bed. The longer the decomposition
period of the substrate, the more significant was the yield.
The best substrate for the production of fruiting body of Pleurotus ostreatus and sclerotia of
Pleurotus tuber-regium was Mangifera indica while Senna siamea was most suitable for
Keywords: Biological and production efficiencies, Composting intervals, Oyster
mushrooms, Tropical trees sawdust
OTUNLA, C (2021). Comparative Study Of The Growth And Yield Of Three Cultivated Pleurotus Species On Selected Tropical Trees Sawdusts. Afribary. Retrieved from https://afribary.com/works/comparative-study-of-the-growth-and-yield-of-three-cultivated-pleurotus-species-on-selected-tropical-trees-sawdusts-1
OTUNLA, CALEB "Comparative Study Of The Growth And Yield Of Three Cultivated Pleurotus Species On Selected Tropical Trees Sawdusts" Afribary. Afribary, 11 Apr. 2021, https://afribary.com/works/comparative-study-of-the-growth-and-yield-of-three-cultivated-pleurotus-species-on-selected-tropical-trees-sawdusts-1. Accessed 30 Mar. 2023.
OTUNLA, CALEB . "Comparative Study Of The Growth And Yield Of Three Cultivated Pleurotus Species On Selected Tropical Trees Sawdusts". Afribary, Afribary, 11 Apr. 2021. Web. 30 Mar. 2023. < https://afribary.com/works/comparative-study-of-the-growth-and-yield-of-three-cultivated-pleurotus-species-on-selected-tropical-trees-sawdusts-1 >.
OTUNLA, CALEB . "Comparative Study Of The Growth And Yield Of Three Cultivated Pleurotus Species On Selected Tropical Trees Sawdusts" Afribary (2021). Accessed March 30, 2023. https://afribary.com/works/comparative-study-of-the-growth-and-yield-of-three-cultivated-pleurotus-species-on-selected-tropical-trees-sawdusts-1