Q- Which is the most common method of obtaining improved variety of crops? Explain briefly.
Answer- The most common method of getting improved variety of crop is selection and hybridisation.
The selection must have started from primitive time period. This practice was done by primitive people to improve crop variety. Selection is also of two type: Natural selection and Artificial selection.
Hybridisation is the process of crossing of two plants differing from each other genotypically in one or more traits.
There are some main objectives of hybridization. These are as follows:
1. Hybridisation is done to produce a single kind of variety having combination of good dominant characters.
2. To increase and generate the genetic variations through recombination.
3. Hybridisation is used to exploit and utilize the hybrid vigour.