Callus.

Assertion : A correct concentration of auxin and cytokinin is required for the development of root and shoot in callus. Reason: When the ratio of kinetin to auxin is high only shoot develop but when the ratio is low only roots develop

In tissue culture experiments of tobacco callus, it was seen that when the culture medium contains 2 ppm of IAA and 2ppm of kinetin, an undifferentiated mass of callus is produced. If the ratio of kinetin to IAA is increased, then

The plant hormone that induces cell proliferation ,plant growth and development , trigger callus differentiation , embryogenesis , maintenance of root and shoot meristems , keep the cut flowers and vegetables fresh is

Who observed that from the internodal segments of tobacco stems the callus proliferated only if, in addition to auxins the nutn'ents medium was supplemented with one of the following: extracts of vascular tissues, yeast extract, coconut milk or DNA?

Somatic Embryogenesis, Somatic Hybridisation, Embryo Culture and Embryo Rescue, Anther Culture and Haploid Production, Meristem Culture, callus, Semisolid and Liquid Cultures, Somaclones, Somaclonal Variations.

Somatic Embryogenesis || Somatic Hybridisation || Embryo Culture and Embryo Rescue || Anther Culture and Haploid Production || Meristem Culture || callus || Semisolid and Liquid Cultures || Somaclonesand Somaclonal Variations.