Effect of Priming methods and Re-Drying duration on Germination and Vigour Characters of Paddy (Oryza sativa L.)

摘要

The experiment was conducted to standardize the best priming method and re-drying duration specific to Paddy. Two methods of priming viz., hydro-priming and halo-priming were evaluated by screening a range of durations (12, 24 & 48 hrs.) and re-dryingduration ( 2 & 4 hrs). Hydro-priming of 48 hrs.and 2 hrs. re-drying of seeds displayed significantly high per cent of seed germination, seedling length, fresh weight, dry weight, speed of germination and vigour as compared to other priming and unprimedseeds. But in case of root length, halo priming seeds shows better results. Salinity and less priming time decreased germination and vigour of seeds. It is also found that hydro-priming could be best option than halo-priming in Paddy. Hydrated seeds canbe re-dried for two hours without loss of physiological advancement obtained from hydration phase. The quality of seed with the help of seed priming treatments which are cost effective, economic, non toxic, eco-friendly sources can be improved.