A study was conducted to study longevity of dissipation pattern of seed dormancy in 27 paddy varieties. Misinterpretation of germination results can lead to inaccurate conclusions about the viability and potential of plant seeds, affecting agricultural practices. Dormancy period and dissipation in paddy vary with the varieties BR-2655 (24 days), Thanu (3 days), IR-30864 (24 days), Jaya (30 days), Jyothi (48 days), Kadamba (36 days), IR-64 (21 days), MTU.1001 (21 days), MTU-1010 (9 days), Rasi (27 days), BPT 5204 (9 days), JGL 1798 (3 days), KCP-1 (45 days), Mandya Vijaya (9 days), Gangavathi sona (6 days), MAS 9461 (6 days), CTH-3 (24 days), Vikas (24 days), Mangala (18 days), Tella Hamsa (24 days), IR-20 (18 days), CTH-1 (21 days), KRH-2 (21 days), Thunga (30 days), KMR-3R (54 days), KMP-175 (12 days) and IET7575 (24 days) exhibited varied degree of seed dissipation periods. KMR-3R exhibited maximum dormancy period (54 days) and was least (3 days) in JGL 1798. Paddy hybrid KRH-2 and KRH-4 exhibited dormancy for 21 and 15 days respectively. This data could be utilized for seed certification during field inspection to inspect volunteer plant and seed testing to avoid misinterpretation of germination results.

Dissipation, Seed Dormancy, Paddy, viability, longevity

Seed dormancy of rice varieties at different intervals after harvest varied significantly. This data could be used for seed conditioning and seed release to market in paddy varieties.

Vishwanath K., Mahadevu P., Basavaraja B. and Nagaraj Hullur (2023). Longevity of Dissipation of Seed Dormancy in Paddy varieties. Biological Forum – An International Journal, 15(8a): 488-491.