Correct Option
The correct option isCommercial rearing of silk worms.
Explanation
Agriculture encompasses various branches dedicated to the cultivation of plants and the rearing of animals for food, fiber, and other products. Specific terms are used to denote the commercial production of distinct agricultural commodities.
Option Analysis
- Commercial rearing of silk worms. is Correct: Sericulture refers to the commercial rearing of silkworms for the production of silk. It involves the cultivation of food plants (such as mulberry) for the silkworms and the extraction of silk fibers from the cocoons.
- Growing of flowers for commercial use. is Incorrect: The growing of flowers for commercial use is known as Floriculture. It is a branch of horticulture concerned with the cultivation of flowering and ornamental plants.
- Breeding of fish in tanks. is Incorrect: The breeding of fish in specially constructed tanks and ponds is known as Pisciculture. This is a form of aquaculture.
- Cultivation of grapes. is Incorrect: The cultivation of grapes is known as Viticulture. It is specifically related to the growing of grapevines, often for wine production.
Key Takeaway
Sericulture is the specific agricultural practice of rearing silkworms to produce silk, distinct from Viticulture (grapes), Pisciculture (fish), and Floriculture (flowers).