How new varities of plants are product?
Answers
Answer:
The new plant varieties are produced by selection and hybridization. Selection is a non-random process which leads to individuals of different genotypes being represented unequally in their progeny in later generations of a population of self propagating units. Selection can be natural or artificial.
Explanation:
In all new plant breeding techniques, the process of producing an improved plant starts with a genetic modification, which is the introduction of a recombinant DNA (or, in some variants, RNA) into the plant. Through subsequent selection and breeding steps, the final products are produced.
Classical plant breeding uses deliberate interbreeding (crossing) of closely or distantly related individuals to produce new crop varieties or lines with desirable properties. Plants are crossbred to introduce traits/genes from one variety or line into a new genetic background.
The purpose of plant breeding is to produce plant varieties, that are accustomed to certain conditions, produce high and good quality yield and are pest resistant. ... The plants of the new variety should be as similar as possible, so that their characteristics will meet the variety description