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(a) Explain the application of tissue cu...

(a) Explain the application of tissue culture in any three fields.
(b) Why continued inbreeding should be avoided in plants?
( c) What is germplasm collection?

Text Solution

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(a) Applications of tissue culture :
`cdot` Micropropagation : It is used for the propagation `//` production of a large number of plants within a short time span. Micropropagation produces somaclones ( plants genetically idential to the original `//` parent plant ).
`cdot` Virus - free plants : Meristems of plants are grown by tissue culture to get virus - free plants. By this method, healthy plants can be recovered from diseased plants.
`cdot` Somatic hybridization : Somatic hybrids obtained from somatic hybridization ( fusion of naked protoplasts isolated from two different varieties of plants ) can be further grown to form new plants by tissue culture.
(b) Continued inbreeding results in inbreeding depression which decreases fertility and productivity of plants.
( c) Germplasm collection : It is the entrie collection of plants or seeds having diverse alleles for all the genes in a given crop.
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