Strategies for Enhancement in Food Production Out of Syllabus

Potato and tomato are new world crops. Their center of origin is Peru, so they are new world crops. They were brought to India by the European invaders.

Gambusia affinis is regarded as a larvicidal fish as it selectively feeds on mosquito larvae. It forms an effective tool for biological control of mosquitoes.

Triticale is the Ist man made cereal which is made by the crossing of wheat (Triticum aestivum) and Rye (Secale cereale).

A highly organised division of labour is found in the colony of honey bees. A good and well developed colony of bees had 40 to 50 thousand individuals consisting of 3 castes viz., queen, drone and worker. Although the workers are the smallest of the three castes but they function as the main spring of the complicated machinery like honey bee colony. It takes 21 days in the development from the egg to the adult and the total life span of a worker is about 6 weeks.

The workers are atrophid female which sacrifice themselves for the well-being of the colony. The total indoor and outdoor duties of the colony are performed by the workers only. Apis dorsata is the largest honey bee and A. indica is slightly smaller than it. Bees wax is a by product of honey bee and drone of honey bee is haploid in nature.

Coconut milk or liquid endosperm of coconut could initiate as well as sustain the proliferation of tissues in a culture. Eventually coconut milk was shown to contain the cytokinin zeatin, but this finding was not obtained until several years after the discovery of cytokinins. The first cytokinin to be discovered was the synthetic analog kinetin.