Identification of anaerobic germination tolerant landraces and validation of molecular marker in rice (Oryza sativa L.)

Poor germination and late seedling establishment are the main obstacles observed for wide spread adoption of direct-seeded rice cultivation in both rainfed irrigated regions due to waterlogged condition soil. The present experiment was carried out identify landraces with anaerobic tolerance development varieties suitable direct seeded cultivation. A total 53 genotypes were evaluated by following screening methods petri plate tray method. namely savudu samba, vellai kavuni, varappu kudaichan korumbaali recorded maximum percentage (> 90%) under conditions these also produced high dry matter production. minimum malai nellu, surakuruvai mappillai samba remaining moderate germination. Shoot length all ranged from 0.70 6.23 cm Dry production 0.031 0.265 g/10 seedlings. Based on screening, best least performed selected genotyping using already reported SSR markers. marker produces polymorphism between tolerant susceptible genotypes, which can be exploited further Marker Assisted Breeding programme. Keywords : Rice, Landraces, Anaerobic, Germination, Validation, Molecular marker.