Question 6 of 11intermediate🔧 ApplyShort Answer5 marks

Interact with an entrepreneur and learn the steps for cultivation of mushroom.

Correct Answer

Mushroom cultivation involves the following steps:

First, prepare the substrate (growing medium) using agricultural waste like straw, sawdust, or compost, which is sterilized to kill competing microorganisms. Second, prepare mushroom spawn (mushroom seeds) by growing mycelium on sterilized grain.

Third, inoculate the substrate with spawn under sterile conditions. Fourth, maintain optimal conditionstemperature (20-25°C) for most varieties, humidity (80-90%), and darkness during the incubation phase for 2-3 weeks while mycelium spreads through the substrate.

Fifth, induce fruiting by lowering temperature, increasing fresh air, and providing indirect light. Sixth, harvest mushrooms when caps open but before spores are released.

Mushrooms grow from spores or mycelium and require no sunlight as they are non-photosynthetic. The entire cycle from inoculation to harvest takes 6-8 weeks depending on the variety.

Exercise: Discover, design, and debate | Q: 4 | (Chapter: Page 20)
For More Understanding

Explanation

The chapter explains that fungi are microorganisms that can be unicellular or multicellular. Mushrooms are macro fungi that can be seen with naked eyes. Unlike plants, fungi do not have chloroplasts and cannot make their own food through photosynthesis. They grow on organic matter and obtain nutrients by decomposition. The 'Ever heard of...' section on Spirulina farming (Page 16) shows how microorganisms can be cultivated for food and livelihood.

Solution Steps

  1. Prepare substrate using agricultural waste (straw, sawdust, compost) and sterilize it

  2. Prepare mushroom spawn by growing mycelium on sterilized grain

  3. Inoculate the substrate with spawn under sterile conditions

  4. Maintain optimal conditions: temperature (20-25°C), humidity (80-90%), darkness for 2-3 weeks during incubation

  5. Induce fruiting by lowering temperature, increasing fresh air, and providing indirect light

  6. Harvest mushrooms when caps open but before spores are released

  7. Complete cultivation cycle takes 6-8 weeks depending on variety