From which part of the plant is cocoa obtained from $Theobroma$ $cacao$?

Cultivation of $Papaver$ is done under government control.

$A$ cultivated plant whose seed epidermis produces abundant cellulosic hairs used in the textile industry and the manufacture of fine-quality paper is:

The first isolation of the highly important alkaloid $Reserpine$ was performed by:

The principal cereal crop in India is

Rice grain contains about