The effects of varying doses of gamma radiation on the mycelial proliferation, morphology, productivity and shelf-life of oyster mushroom (Pleurotus sajor-caju (Fr.) Singer) in three succesive generations

Date of Publication

1991

Document Type

Master's Thesis

Degree Name

Master of Science in Biology

Subject Categories

Biology

College

College of Science

Department/Unit

Biology

Thesis Adviser

Milagros L. Relon

Defense Panel Chair

Esperanza C. Cabrera

Defense Panel Member

Susano B. Tanael
Apolonia L. Lalap

Abstract/Summary

This study was conducted to determine the effects of varying doses of gamma radiation on the mycelial proliferation, morphology, productivity and shelf-life of Pleurotus sajor-caju (Fr.) Singer in three successive generations. Results showed that 300 and 400 kr radiation delayed the initiation of mycelial growth in both plated RBDA medium and spawn substrate. More days were required for the mycelia to proliferate the medium and the substrate. Effects of radiation were highly significant on the mycelial proliferation in both plated RBDA medium and substrate. Significant effects of radiation were observed on the average length of stipe and length of productivity / cropping period. Morphology of Pleurotus sajor-caju (Fr.) Singer was not altered and the shelf-life of harvested basidiocarps was not extended. Effects of radiation in the first generation were generally higher which were eventually reduced in the succeeding generations.

Abstract Format

html

Language

English

Format

Print

Accession Number

TG01830

Shelf Location

Archives, The Learning Commons, 12F Henry Sy Sr. Hall

Physical Description

107 leaves; 28 cm.

Keywords

Pleurotus ostreatus -- ffect of gamma rays on; Radiation -- Dosage

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