Step 1: Understanding the Concept:
Mushroom cultivation in India is an important commercial horticultural enterprise.
While several edible mushroom species are cultivated, market demand, culinary preferences, and production technology dictate their commercial shares.
Step 2: Detailed Explanation:
The white button mushroom, chemically known as Agaricus bisporus, is the most widely cultivated and consumed mushroom species in India.
It thrives in temperate regions but is also grown under controlled indoor conditions in subtropical and tropical plains.
Due to its pleasant flavor, firm texture, established package of cultivation practices, and high market demand, it dominates the Indian mushroom industry, accounting for over 85% of total national production.
Other species, such as oyster mushroom (Pleurotus spp.), paddy straw mushroom (Volvariella volvacea), and shiitake mushroom (Lentinula edodes), are also cultivated but have much smaller market shares due to localized demand and shorter shelf life.
Step 3: Final Answer:
The white button mushroom, Agaricus bisporus, dominates the Indian mushroom industry, corresponding to option (A).