Merits & Demerits of Pedigree Method
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- Excellent method for improvement of easily observable and high heritable characters.
- As pedigree record is maintained, information regarding inheritance pattern of characters can be obtained as and when required.
- Each plant can be traced back to its parent plant.
- Only those progeny lines which contain plants with desired characters are selected for next generation. So there is scope for plant breeder’s skills.
- Progeny tests are done, thus it is based on genotypic value rather than phenotypic value alone.
- Increased breeding efficiency by early identification of superior heterogeneous populations
- Scope for transgressive segregation to occur for the characters like yield.
- New variety development takes short period as compared to bulk method.
- Costly
- Labour intensive.
- Requires skilled person as selection is practised
- Pedigree record maintenance is time consuming.
- Selection for yield or other characters in F2 and F3 is ineffective.
- One important point to note is genetic variation available for selection gets decreased in later generations due to the individual plant selection carried out earlier
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Last modified: Monday, 2 April 2012, 6:03 PM
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