Breeding a new rice [Oryza sativa] cultivar "Fukumirai"
2006
Sato, H.(Fukushima-ken. Agricultural Experiment Station, Koriyama (Japan)) | Saito, S. | Oowada, M. | Arai, Y. | Taira, T. | Saito, H. | Hanzawa, S. | Kida, Y.
"Fukumirai (Fukushima 1)" is a new non glutinous paddy rice cultivar. To breed a new cultivar with the same maturing time as "Norin 21", "Fukumirai" was developed from the progenies of a cross between "Chubu 82" and "Chiyonishiki" at Fukushima Prefectural Agricultural Experiment Station in 2000. The maturing time is between "Hitomebore" and "Koshihikari". Its maturing time is classified as late to medium group in Fukushima Prefecture. The plant type is classified as partial panicle number type. The culm length and panicle length are the same as "Hitomebore" and the lodging resistance is higher than that of "Hitomebore" and "Koshihikari" It has a true blast resistance gene "Pia", and its field resistance to leaf blast is moderate and that of panicle blast resistance is moderately resistant. The cool weather tolerance at the booting stage is strong as that of "Hitomebore" and "Koshihikari". The thousand kernel weight is smaller than "Chiyonishiki" and the same as "Koshihikari". The yield is slightly superior to that of "Koshihikari" and the same as "Hitomebore". The grain quality is slightly inferior to that of "Chiyonishiki". The eating quality is slightly inferior to that of "Hitomebore" and "Koshihikari" and its eating quality is the same as "Chiyonishiki", because its viscosity is less than that of "Hitomebore" and "Koshihikari". It is expected that the breeding of "Fukumirai" will contribute to the stable production, because of the distribution of work and risk. It is expected that the breeding of "Fukumirai" will contribute to the stable production, because the introduction of this cultivar by farmers could expand the harvest time of rice and consequently reduce the risk.
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