Unraveling the genetic potential of native rice (Oryza sativa L.) landraces for tolerance to early-stage submergence.

ABSTRACT: Direct-seeded rice (DSR) is a promising alternative to the traditional puddled rice system. It has become more popular among rice growers as a result of socioeconomic shifts and global climate change. Although DSR offers advantages, rice plants experience greater anaerobic stress at sowing from unpredicted rainfall. Rice is unique among cereals in its ability to germinate under anaerobiosis. The coleoptile of rice rapidly elongates above the water surface to obtain more oxygen and enhance vigorous seedling growth. A panel of 115 landraces and four check varieties were subjected to anaerobic stress with a water level of 10 cm for up to 15 days. The present study observed significant variation in anaerobic germination percentage (AGP) (10%-100%) and anaerobic vigor index (AVI) (150-4,433). L

SUBMITTER: Shanmugam A 

PROVIDER: S-EPMC10232957 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature