Which of the following is not a plantation crop?

Rye is not a plantation crop. Rye is a cereal grain grown primarily in temperate regions of Europe and North America. It is cultivated on small to medium-scale farms as a food crop (for bread, flour, and animal feed) and does not fit the plantation agriculture model.

Plantation crops are typically tropical or subtropical cash crops grown on large estates (plantations) using intensive labour, with the produce mainly destined for export or industrial processing. The key characteristics of plantation agriculture include large-scale monoculture, significant capital investment, and production for commercial rather than subsistence purposes.

The other three options are classic examples of plantation crops:

• Oil palm is grown on large plantations in tropical West Africa and Southeast Asia for palm oil production.
• Rubber is cultivated on plantations in tropical regions (Southeast Asia, West Africa) for latex and rubber products.
• Cocoa is grown on plantations in tropical West Africa (especially Ghana, Ivory Coast, Nigeria) for chocolate and beverage production.