Study on viability of Surinam cherry (Eugenia uniflora L.) seeds on germination behaviour and Vigour of the seedling

The experiment on effect of seed sowing from the day of extraction to 90 days after extraction at 10 days interval on seed viability revealed that significantly minimum number of days for initiation of germination (13.67 days), complete germination (30.67 days),fifty per cent germination (21.00 days), maximum germination percentage (100.00%) and survivability percentage (95.83%) was noticed in the seeds which were sown on the day of extraction. Seedling growth parameters like longest root length (8.03 cm), shoot length (7.08 cm), vigour index-I (1511.67), vigour index-II (16.67), fresh weight (46.83 mg), dry weight (15.67 mg), at 30, 60, 90 and 120 days after transplanting was also maximum in seeds sown on the day of extraction. Delay in seed sowing caused a considerable decrease in all these parameters.