Intensity and duration of dormancy in some rices [India]
1985
Mandal, B.K. | Mitra, A.K. (Rice Research Station, Chinsurah 712102 (India))
Wide variability in germination among control and heat treated seeds was observed. Test varieties fell into three distinct groups: weak, short duration dormancy (NC1281, Seetasail, and OC1 393); weak, long duration dormancy (NC324, Badsabhog, Rupsail, and Kalma 222); and moderate long-duration dormancy (Randhunipagal, Kataribhog, NC678, Kumargore, and Patnai 23). Kumargore might be considered a fourth type because it has strong, long-duration dormancy. Rices with weak, short-duration dormancy may be used as donors for incorporating seed dormancy in cultivars to be developed for areas where preharvest germination is a problem and seeds are needed for the succeeding rice crop
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