Abstract
Pleurotus species are progressively becoming important edible mushrooms worldwide and it is of importance in choosing suitable substrates in a given place to grow them. The study provides basic and valuable information on mycelial growth rates and yield efficacy of four different Pleurotus spp. The highest average mycelium growth of 1.29 mm/day followed by 1.17 mm/day was observed in the bags of P. salmoneostramineus and P. ostreatus grey, respectively. Similarly, the highest cumulative growth of 12.90 cm/day and 11.74 cm/day was recorded in the 30 day old bags of P. salmoneostramineus and P. ostreatus grey, respectively. There was a significant increase (P < 0.05) of about three fold in the pin head formation of P. ostreatus grey (9 days) compared to other mushroom species (2-3 days). P. salmoneostramineus showed a vigorous growth in the fruiting body and the harvesting time required was just 5.67 days. It is clear from the result that there is no correlation between the rate of mycelia growth and pin appearance. The yield varied significantly due to the effect of mycelial growth on the substrate. The highest first flush and number of fruiting bodies was achieved in the yellow oyster followed by P. ostreatus grey and P. salmoneostramineus. In conclusion, sawdust and rice bran could be a promising substrate for linear mycelial growth of P. ostreatus species.
Highlights
The ever growing need of producing cheap nutritious food, led to the fast development of the mushroom cultivation industry [1]
Commonly grown on pasteurized wheat, rice straw and sawdust, it can be cultivated on a wide variety of lignocellulosic substrates, enabling it to play an important role in managing organic wastes [11, 12]
The highest average mycelium growth of 1.29 mm/day followed by 1.17 mm/day was observed in the bags of P. salmoneostramineus and P. ostreatus grey, respectively
Summary
The ever growing need of producing cheap nutritious food, led to the fast development of the mushroom cultivation industry [1]. Mycelium Linear Growth, Oyster mushrooms, sawdust, rice bran, bags. A linear mycelial growth test was used to measure the average mycelium growth in the cultivation of Lentinula edodes with sunflower seed halls substrate in combination with different ratios of wheat bran, poplar sawdust or oat straw [14]. Citrinopileatus and Pleurotus salmoneostramineus) mushroom on available sawdust with rice brawn.
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