| Abstract: |
SUMMARY AND CONCLUSION This work was carried out during the period from 2002 –2005 in Mushroom Research Laboratory (MRL), Faculty of Agriculture, Zagazig University5.1 First Experiment: Effect of fermentation period and organic substrates on the productivity of oyster mushroom.The objective of this experiment was to study the fermentation period (36, 24, 12 and 00 hours) and organic substrates ( rice straw, wheat straw and faba bean straw) on the productivity of oyster mushroomThe obtained results could be summarized as follows: a. Effect of fermentation period Fermentation of organic substrates for 36 hours gave the highest values of early yield, total yield, biological efficiency (%), early yield / total yield (%), total yield / weight of wet substrate (%), whereas fermentation period for 36 or 24 hours gave the highest values of average weight of fruit bodies/bag, average weight of stipe, total carbohydrates in organic substrates after spawning, and after harvesting.b. Effect of organic substratesRice straw substrate recorded maximum early yield, total yield, biological efficiency (%), early yield / total yield (%), total yield / weight of wet substrate (%), number of fruit bodies/bag, average weight of stipe, P and total carbohydrate contents in substrate after spawning, whereas faba bean straw recorded maximum N and total protein in fruit bodies , average weight of cap , N and protein contents in substrate after spawning , and N,K and protein in substrate after harvesting.c. Effect of the interaction between fermentation period and organic substratesFermentation of rice straw substrate for 36 hours increased early yield, total yield, biological efficiency (%), early yield / total yield (%), total yield/ weight of wet substrate (%), whereas, the fermentation of rice straw for 36, 24, 12 hours or unfermentated gave the maximum total carbohydrates in fruit bodies , average fruit weight of body, average weight of stipe , and total carbohydrate in substrate after spawning and after harvesting. The fermentation of faba bean straw for 36, 24, 12 hours or unfermentated recorded maximum average weight of cap , cap weight/fruit weight of body (%) , N and protein contents in fruit bodies.5.2 Second Experiment: Effect of supplement types and supplement levels to organic substrates on the productivity of oyster mushroomThe objective of this experiment was to study the effect of supplements ( rice bran and wheat bean at 00,2.5,5.0,7.5 and 10 %) to rice straw on the productivity of oyster mushroom.The obtained results could be summarized as follows:a. Effect of supplement types Addition W.B. to R.S. significantly increased early yield, total yield, biological efficiency (%), total yield / weight of wet substrate (%), average weight of stipe, average number of fruit bodies/bag, K and total carbohydrate in rice straw after spawning.b. Effect of supplement levels Early yield, total yield, biological efficiency (%), early yield /total yield (%), total yield / weight of wet substrate (%), average fruit weight of body , average weight of cap, average weight of stipe, average number of fruit bodies/bag, average diameter of cap , average length of stipe , N,P protein, total carbohydrates contents in fruit bodies increased with increasing S.L. at 10 % , whereas N,P,K, protein and total carbohydrate contents in rice straw after spawning and after harvesting increased with increasing supplements at 2.5, 5, 7.5 or 10 % compared to the control.c. Effect of the interaction between supplement types and supplemental levels Addition of W.B at 7.5 or 10 % to R.S. substrate gave the highest values of early yield, total yield, biological efficiency (%), early yield/total yield (%), total yield / weight of wet substrate (%), average fruit weight of body , average weight of cap, average weight of stipe, average diameter of cap , N,P protein, total carbohydrate contents in fruit bodies, whereas, addition of wheat bran at 2.5,5.0,7.5,or 10 % in substrate increased N,P,K, protein and total carbohydrates in rice straw substrate after spawning and after harvesting compared to the control.
|
|
|