Q37 of 290 Page 142

Define 'stock' and 'scion'.

The cut stem of a plant having roots (and fixed in soil) is called stock and the cut stem of another plant (without roots) is called scion.

Name two marine organisms which also reproduce by the same method as yeast but form colonies.

What is meant by 'grafting' as a means of propagation in plants?

Describe the grafting method for the artificial propagation of plants with the help of labelled diagrams.

Name two fruit trees which are usually propagated by grafting method.