African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

Growth of Pleurotus ostreatus in culture media based on formulated straw or grass

Fabrício Rocha Vieira*, Meire Cristina Nogueira de Andrade and Marli Teixeira de Almeida Minhoni
Department Plant Production/Mushroom Research Center, College of Agronomical Science,University, Estadual Paulista, FCA-UNESP, Rua José Barbosa de Barros, 1780, FazendaLageado, P. O. Box 237, Zip Code 18610-307, Botucatu, São Paulo, Brazil.
Email: [email protected]

  •  Accepted: 14 May 2013
  •  Published: 29 May 2013

Abstract

Mycelial growth strains of POS 98/38, POS 09/100, POS 09/101, and POS 09/102 of Pleurotus ostreatus were evaluated in culture media with various compositions based on extracts of substrates formulated with sugar cane bagasse together with straws and grasses, and with or without nitrogen supplementation. The evaluation was performed during incubation regularly with a ruler graduated in millimeters until total colonization of the culture medium contained in Petri dishes. The statistical model explaining the kinetics of mycelial growth of mushroom strains of P. ostreatus as a deterministic component has an exponential Gompertz function. The results show that the culture medium with sugar cane straw and brizantha grass (supplemented) showed the highest rates of mycelial growth, regardless of strain used compared to wheat straw-based culture media with had the lowest velocities of growth, regardless of supplementation and strains studied.

         

Key words: Oyster mushroom, grass, straw, substrate, pasteurization.