A New Developed Rice Variety “Tainan 9”
S. L. Chuang and G. C. Lin
Tainan 9 is a new Japonica rice variety, named and released in June 1985, developed by Chiayi Branch Station Tainan DAIS. Its original name is Tainan–Yu 181, selected from a cross between Hsin-Chu-Yu 467 and Tainan-Yu 162 made in the 1st crop 1979. From its parents, it possesses good grain quality, resistance to Rice blast, and high yielding. It also has a strong stem and tolerance to high rate nitrogen application. It is a medium-late maturing variety; the total growth duration is 145 days in the 1st crop and 103 days in the 2nd, similar to that of popular variety Tainan 67. Both its plant height and tillering capacity are medium. 89.7 cm height in the 1st crop and 99.5 cm in the 2nd, 14.6panicles per plant in the 1st crop and 13.0 panicles in the 2nd. In grain yielding, the variety produced 6585 kg/ha in the 1st crop and 6260 kg/ha in the 2nd, both with 0.2% over and less than those of Tainan 67, respectively. The cooking quality appeals to this country people.
Because of good grain quality, good cooking quality and high yielding, Tainan 9 has well accepted by farmers and merchants since released, and now has been introduced to country towns for a comparative scale cultivation by a plan of this country government. Expect this variety will be helpful to this country people’s living quality and farmers’ income.