Abstract
Lentinus squarrosulus, an indigenous mushroom specie commonly found growing on dead logs in the Zaria environ of Kaduna State was cultured on six different medium which were inoculated separately with three different spawn grains and amended with six different oils at five different rates. The interaction of spawn grains x culture medium had a highly significant effect on carpophore dry weight and stipe and pileus diameters of L. squarrosulus. The results reveal that the interaction of millet spawn x animal bedding and rice medium induced the widest stipe diameter while the interaction of corn spawn x animal bedding and rice medium induced the heaviest carpophore dry weight as well as the widest pileus diameter. Key words: Lentinus squarrosulus, spawn grain, carpophore production, non-composted culture medium, polypropylene heat resistant bags, flushes, stipe and pileus diameter, fruiting bodies.
Highlights
Mushrooms are consumed by connoisseurs because of their exceptional flavour and nutritional content and may be cultured for commercial purposes (Ogbonda, 2000; Shofuyi, 2002; Nwanze and Adamu, 2004a; 2004b)
Corn spawn induced a stipe diameter in animal bedding and rice medium that was statistically wider than the comparable ones induced in sawdust and lime 1 medium, which were significantly wider than the similar diameters it induced in lime 2 and formulated medium
The interaction of wheat spawn with sawdust and animal bedding and rice media induced similar mean dry weights of L. squarrosulus that were statistically heavier than the comparable weights induced in lime 1, 2, 3 and formulated media
Summary
Mushrooms are consumed by connoisseurs because of their exceptional flavour and nutritional content and may be cultured for commercial purposes (Ogbonda, 2000; Shofuyi, 2002; Nwanze and Adamu, 2004a; 2004b) In addition they have a varied range of applications in bioremediation of soil, bioconversion of wastewater, medicine, and agricultural waste disposal (Vinciguerra et al, 1995; Daba and Ezeronye, 2003; Ullrich et al, 2004; Magingo et al, 2004). There are various additives that are known to stimulate fruiting They include rice bran, cassava peels, carbohydrates such as glycogen, natural extracts like yeast and malt extract, as well as cell-free extracts (Uno and Ishikawa, 1971; Brunt and Moore, 1989; Fasidi and Kadiri, 1993). The current investigation is interested in the interaction of two of the above factors, spawn grains and culture medium, on the culture of L. squarrosulus
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