notes requiredDefinition : in vegetative propagation new plants are obtained from parts of pre-existing plants such as roots stem and leaves. *what are advantages of this method ?
>>plants raised by vegetative propagation can bear fruits and flowers earlier than those produced from seeds.
>>all plants produced are genetically similar enough to parent plant to have all its characters.
>>the plants are disease-free.
*TISSUE CULTURE: it is production of new plants from isolated plant cells or small cut pieces of plant tissue in a synthetic medium. *advantage of tis. cul.- comparatively quick process ; disease free plants are produced ; can be used in any season; small space is required
*spore formation : in some multicellular organisms there is a blob like structure called sporangium mounted on thread like structures called hyphae . Sporangia contain cells or spores which can develop into new individuals when they come in contact with moist surface .
*advantages of sporulation
> Due to protective coat sporangium helps in survival during adverse conditions like lack of food and water ,high temperature etc.
