INFLUENCE OF NUTRITIONAL AND CLIMATIC CONDITIONS ON MYCELIAL GROWTH OF THREE OYSTER MUSHROOM STRAINS | ||||
| Arab Universities Journal of Agricultural Sciences | ||||
| Article 25, Volume 26, Special issue (2A), October 2018, Page 1165-1173 PDF (467.65 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajs.2018.28368 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Norhan H. Abdel Aziz1; Nahed S. Yousef2; M. E. El-Haddad2; T. S. El-Tayeb3 | ||||
| 1Central Lab. for Agric. Climate, Agric. Res. Center (ARC), Giza, Egypt | ||||
| 2Food Sci. and Tech. Dept., Fac. of Home Economic, Al-Azhar Univ., Tanta, Egypt | ||||
| 3Agric. Microbiology Dept., Fac. of Agric., Ain Shams Univ., Cairo, Egypt | ||||
| Abstract | ||||
| The mycelial growth rate of three oyster mushroom strains namely Pleurotus erengii, P. ostreatus and P. florida was examined on six different agar media (malt extract, Potato dextrose, rose bengal, corn meal, czapek’s dox and waksman’s glucose agar media) to select the most suitable one. Effect of pH was also examined at different values (5.0, 5.5, 6.0, 6.5 and 7.0) on the selected medium. Results indicated that Malt extract agar medium was the most suitable one for mycelium growth of all the tested mushroom strains, being the highest (9 cm ) for P. erengii and P. ostreatus at pH 7 and 9 cm at pH 6 -6.5 for P. florida after 6 days of incubation. The mycelia growth of the tested oyster mushroom strains was also examined at different temperatures (15, 20, 25, 30 and 35ºC) and different levels of relative humidity (50, 65, 75, 85, 95 and 100 %) on malt extract agar medium. The highest mycelial growth rate was obtained at 25°C and relative humidity of 65% after 6 days of incubation for the three tested oyster mushrooms. | ||||
| Keywords | ||||
| Oyster mushroom; optimal conditions; nutrient media; mycelial growth rate | ||||
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