Breeding of a new rice variety 'Tsubuyutaka'
2010
Abe, A., Iwate-ken. Agricultural Research Center, Kitakami (Japan) | Sugawara, H. | Sasaki, T. | Takakusagi, M. | Nakano, H. | Kiuchi, Y. | Tamura, K. | Nakajo, S. | Takahashi, M. | Odanaka, H. | Ogi, Y. | Ogata, S. | Terui, Y. | Sato, T. | Kamiyama, Y.
A new paddy rice variety 'Tsubuyutaka' was developed by Iwate Agricultural Research Center in 2009. The variety was selected from the cross between 'Ko70' and 'Fukuhibiki' conducted in 1994 by the ex-Kennan branch of Iwate Agricultural Experiment Station. This variety was intended as a high grain-yielding variety with cold tolerance at the booting stage and panicle blast resistance. 'Tsubuyutaka' has been tested as a local line number 'Iwanan29' since 2001. It was registered as a new rice variety in Iwate Prefecture in 2009 for its uses as feed grain, production of rice flour, etc. Characteristics of 'Tsubuyutaka' are as follows: (1)It belongs to the late-maturity group, maturing concurrent with 'Hitomebore'. (2) It has high tolerance to sterility caused by low temperatures at the booting stage, superior to that of 'Fukuhibiki' and 'Bekoaoba'. (3) It has high lodging resistance under transplanting/direct seeding cultivation, stronger than 'Hitomebore'. (4)The grain yield is higher than that of 'Hitomebore'. (5)The grain quality and the eating quality are inferior to those of 'Hitomebore'.
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