Screening and enhancement of anaerobic germination of rice genotypes by pre-sowing seed treatments

Abstract

In the present study, 243 lowland rice genotypes were screened for anaerobic germination (AG) under 10 cm of flooding in plastic trays. Forty three genotypes showed anaerobic germination. Pre-sowing seed treatments of the genotypes by soaking, priming with water, 1% KCl and 5% PEG each for 24 h revealed enhanced AG and other seed germination parameters under flooding compared to control. Priming could induce AG in the genotypes that failed to germinate under submerged condition. Hydro-priming and 1% KCl priming found to be the best treatments showing the usefulness of pre-sowing seed treatments. Jalashree, Jalkuwari and Ranjit Sub1-C-376, having submergence tolerance, were identified as potential genotypes for AG and hence can be used in breeding programmes.