OPTIMIZATION OF CULTURE MEDIA AND GRAIN SUBSTRATES FOR INDUSTRIAL SPAWN PRODUCTION OF CALOCYBE INDICA

Muhammad Awais

Department of Plant Pathology, PMAS Arid Agriculture University Rawalpindi, Pakistan

Gulshan Irshad

Department of Plant Pathology, PMAS Arid Agriculture University Rawalpindi, Pakistan

Sumaira Maqsood

Department of Environmental Sciences, Kohsar University Murree, Pakistan

Muhammad Inam-ul- Haq

Department of Plant Pathology, PMAS Arid Agriculture University Rawalpindi, Pakistan

Asim Gulzar

Department of Entomology, PMAS Arid Agriculture University Rawalpindi, Pakistan

Muhammad Kashif

Department of Plant Pathology, PMAS Arid Agriculture University Rawalpindi, Pakistan

Ammar Mehmood

Department of Plant Pathology, PMAS-Arid Agriculture University Rawalpindi

Iqra Shoukat

Department of Botany, Kohsar University Murree, Pakistan

Muhammad Irfan

Department of Forestry and Range Management, Kohsar University Murree, Pakistan

Muhammad Saim Abbasi

Department of Forestry and Range Management, Kohsar University Murree, Pakistan

Keywords: Mass multiplication; Spawn; Milky mushroom


Abstract

Mushrooms are large, fleshy, edible fungi that belong to the Ascomycetes or Basidiomycetes classes. Among them, milky mushrooms (Calocybe indica) are the third most commercially cultivated variety in Pakistan, following button and oyster mushrooms. This study aimed to identify the most effective growing medium and grain substrate for the culture and spawn preparation of milky mushrooms. Three media Potato Dextrose Agar (PDA), malt extract agar, and Czapek Dox Agar (CDA) were evaluated for their influence on mycelial growth. The treatments were designated as T1 (PDA), T2 (MEA), and T3 (CDA). PDA showed significantly superior results in promoting cultural growth. Mycelial development was observed on days 4, 7, and 10. Additionally, grain substrates were assessed, revealing that wheat grains supported the maximum mycelial growth, while oat grains showed the least growth on days 7, 14, and 21. These findings suggest that PDA and wheat grains are the most suitable for mass multiplication of C. indica.

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