Pedigree selection

This is the most popular breeding method in rice. Individual plants are selected starting with F2 (250-500). In the subsequent segregating generations their progenies are tested. Selection is practiced between and within progeny families. Data on reaction to diseases and insects and grain quality etc. are scored starting F4. When progenies become homozygous they are bulk harvested and promoted to yield trials.

A pedigree record is kept. Naming of pedigree is based on the cross number and serial numbers of selected plants. For example:

Pedigree method is the most extensively used method for handling the segregating generations from crosses. The majority of IRRI bred elite lines and varieties have been developed by the pedigree method.