Identification of restorers and maintainers for the development of rice hybrids using wa and kalinga sources of CMS lines

A study was conducted on three cytoplasmic male sterile (CMS) lines and eight elite rice genotypes of diverse source of origin to evaluate the genotypes in order to identify potential restorers and maintainers from test crosses. The F₁'s (crossed between genotypes and CMS lines) expressed different fertility reactions. Among the tested genotypes, one genotype NPT-4 expressed restorer (R) reaction and four exhibited partial maintainer (M) reaction. The identified genotypes can play a pivotal role in hybrid rice development.