Characterization of rice (Oryza sativa L.) landraces based on agromorphological traits

Abstract

Rice (Oryza sativa L.) is an important cereal in the world. Landraces and wild species of rice have immense potential to tolerate or resist different biotic and abiotic stresses due to the presence of trait specific genes. Thirty seven landraces collected from Thanjavur, Ramanathapuram and Salem districts were utilized for the present study. These accessions were raised in RBD replicated twice and evaluated for 30 morphological traits. The local landraces exhibited sufficient genetic variation for most of the traits. Out of 30 descriptors studied, three characters were found monomorphic, while rest of the characters showed variations among the accessions. The genetic potential of the accessions for the desired traits can be utilized in hybridization programme to achieve promising genotypes.

Keywords

• Rice
• Characterization
• Landraces
• Descriptor