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An Early-Maturing, Blast Resistant and High Quality Rice Cultivar "Pyeongwon"  

Ryu, Hae-Young (National Institute of Crop Science, RDA.)
Jeon, Yong-Hee (National Institute of Crop Science, RDA.)
Jung, Kuk-Hyun (National Institute of Crop Science, RDA.)
Shin, Young-Seop (National Institute of Crop Science, RDA.)
Hwang, Hung-Goo (National Institute of Crop Science, RDA.)
Kim, Hong-Yeol (National Institute of Crop Science, RDA.)
Kim, Myeong-Ki (National Institute of Crop Science, RDA.)
Jung, O-Young (National Institute of Crop Science, RDA.)
Won, Yong-Jae (National Institute of Crop Science, RDA.)
Kim, Yeon-Gyu (National Institute of Crop Science, RDA.)
Yang, Chang-In (National Institute of Crop Science, RDA.)
Lee, Jeom-Ho (National Institute of Crop Science, RDA.)
Lee, Jeong-Il (National Institute of Crop Science, RDA.)
Lee, Jeong-Heui (National Institute of Crop Science, RDA.)
Choi, Yoon-Hee (National Institute of Crop Science, RDA.)
Yang, Sae-Jun (National Institute of Crop Science, RDA.)
Ahn, Eok-Keun (National Institute of Crop Science, RDA.)
Publication Information
Korean Journal of Breeding Science / v.41, no.2, 2009 , pp. 177-181 More about this Journal
Abstract
'Pyeongwon' is a new japonica rice cultivar which is developed from a cross between Jinbu19 and Samjiyeon4 from North Korea by the rice breeding team of National Institute of Crop Science, RDA. Pyeongwon has about 107 days duration from seeding to heading in mid-northen plain, alpine, north-eastern coastal and southern alpine areas. It has about 67 cm culm length and tolerance to lodging. Pyeongwon has 13 tillers per hill and 82 spikelets per panicle. It showed tolerance to heading delay and spikelet sterility due to cold treatment similar to Odaebyeo. It also showed slow leaf senescence and moderate tolerance to viviparous germination during the ripening stage. Pyeongwon has resistance to blast disease but susceptible to stripe virus and brown planthopper. Milled rice of Pyeongwon has translucent kernels, relatively clear non-glutinous endosperm and medium short grain. It is characterized as a low gelatinization temperature and slightly lower amylose content (17.1%) variety compared to Odaebyeo (19.5%) and has good palatability of cooked rice. The milled rice yield performance of this cultivar was about 5.28 MT/ha by ordinary culture in local adaptability test for three years. This cultivar may be highly adaptable to the mid-northen plain, alpine, north-eastern coastal and southern alpine areas of Korea.
Keywords
Pyeongwon; japonica; rice cultivar; high quality; blast resistant;
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