行政院農業委員會台南區農業改良場  研究彙報第18號

水稻新品種台南7號之育成

莊商路 林國清

摘  要

台南7號為本場嘉義分場新育成之水稻稉稻品種,原品系名稱為台南育147號,係民國62年第2期作以豐產,抗病中等,米質優良之南改育119號與南改育121號雜交,而於民國64年第2期作選出,歷經各級產量比較試驗、地方試驗、全省區域試驗及各項特性檢定、米質檢定、米飯試食等結果,其豐產性高於台南5號,而低於台農67號,並具稻熱稻、白葉枯病中抗、強稈不倒伏、種子稍具休眠性、米質優良、米飯好吃等特性,經由各項試驗結果顯示為可適於本省第一、二期作,中間作栽培之品種。


A New Rice Variety----Tainan 7

S. L. Chuang and G. C. Lin

Summary

Tainan 7 is a new Japonica rice variety, named in June 1983, developed by Chiayi Branch Station of Tainan District Agricultural Improvement Station.  It was selected from a cross between Nan-Kai-Yu 119 and Nan-Kai-Yu 121 made in the 2nd crop 1973.  It possesses good grain quality from its parental varieties, the grains of it are not only bright in appearance, but tasty when cooked also.  It has strong culms which support it not easily to lodge and suit for mechanical harvest.  It is moderative resistant to Rice Blast and Bacterial Leaf Blight, and moderative response to nitrogen application.  It could reduce the loss in Panicle’s germination when ripen stage because of its short dormancy.  The plant height of it is 89.2 cm in the 1st crop and 97.0 cm in the 2nd.  The panicles per plant of it is 15.2 in the 1st crop and 10.3 in the 2nd.  The growth duration is 125 days in the 1st crop and 103 days in the 2nd.  In grain yield, it produced 6763 kg/ha in the 1st crop with 2.5% increased over CK. variety Tainan 5, and 4351 kg/ha in the 2nd crop better than Tainan 5 by 3%, to compare with the main cultivative variety nowadays Tainan 67, it showed 3-12% reduction, on the other hand, Tainan 7 is a medium yielding variety. To sum up, Tainan 7 is a variety of good grain quality, strong culm and moderative resistant to disease, could be suited for cultivation both in the 1st and 2nd crop in Taiwan Island, although it isn’t a high grain yielding varieity, but with its good grain quality, perhaps could be popularly cultivated when the system of grain quality’s sorting for buying and selling been carried out.



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