Browse > Article

An Extremely Early-Maturing, Plain Area Adaptable, Blast Resistant and High Grain Quality Rice Cultivar 'Joun'  

Won, Yong-Jae (National Institute of Crop Science, RDA)
Ryu, Hae-Young (National Institute of Crop Science, RDA)
Shin, Young-Seop (National Institute of Crop Science, RDA)
Hong, Ha-Cheol (National Institute of Crop Science, RDA)
Kim, Yeon-Gyu (National Institute of Crop Science, RDA)
Kim, Myeong-Ki (National Institute of Crop Science, RDA)
Jung, Kuk-Hyun (National Institute of Crop Science, RDA)
Jeon, Yong-Hee (National Institute of Crop Science, RDA)
Cho, Young-Chan (National Institute of Crop Science, RDA)
Ahn, Eok-Keun (National Institute of Crop Science, RDA)
Yoon, Kwang-Sup (National Institute of Crop Science, RDA)
Lee, Jeong-Heui (National Institute of Crop Science, RDA)
Kim, Jeong-Ju (National Institute of Crop Science, RDA)
Oh, Sea-Kwan (National Institute of Crop Science, RDA)
Oh, Myung-Kyu (National Institute of Crop Science, RDA)
Jeung, Ji-Ung (National Institute of Crop Science, RDA)
Chun, A-Reum (National Institute of Crop Science, RDA)
Park, Hyang-Mi (National Institute of Crop Science, RDA)
Roh, Jae-Hwan (National Institute of Crop Science, RDA)
Yoon, Young-Hwan (National Institute of Crop Science, RDA)
Publication Information
Korean Journal of Breeding Science / v.42, no.3, 2010 , pp. 313-317 More about this Journal
Abstract
There are the farmer's needs to develop early-maturing cultivar adaptable to mid-northern inland plain and alpine area. Furthermore, it is required to develop a rice variety to produce new rice before concentrated marketing dates, even in the years of early Chuseok. 'Joun' is a new extremely early-maturing japonica rice cultivar developed in 2009 from the cross of SR14880-173-3-3-2-2-2/Unbong20 at Cheolwon Substation, National Institute of Crop Science (NICS), Rural Development Administration (RDA). The heading date of 'Joun' is July 23 in mid-northern alpine area, which is 7 days earlier than that of Odaebyeo. It has about 61 cm in culm length with semi-erect plant type. Panicle has a few awns and its exertion is good. The number of spikelets per panicle is smaller than that of Odaebyeo and 1,000 grain-weight of brown rice is 21.2 g which is less than 26.3 g of Odaebyeo, but the complete grain ratio is higher. Milled kernels are translucent with non-glutinous endosperm and palatability of cooked rice is good. It shows strong resistance to cold treatment, lodging, premature heading, wilting and viviparous germination during ripening stage. This cultivar shows resistance to leaf blast disease but susceptible to bacterial blight, virus disease and insect pests. The milled rice yield performance of 'Joun' is about 5.18 MT/ha by ordinary culture in local adaptability test for three years. This cultivar may be highly adaptable to the mid-northern inland plain and alpine area, north-eastern coastal area and middle plain area.
Keywords
Rice; Extremely early-maturing; Adaptable to plain area; blast resistance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 RDA. 2009b. 2009 Research Plan of Development New Variety of Summer Crops. pp. 5-47.
2 RDA. 2010. 2009 Report of Development New Variety of Summer Crops. pp. 13-208.
3 Ryu HY, Jeon YH, Jeong KH, Shin YS, Hwang HG, Kim HY, Kim MK, Jeong OY, Won YJ, Kim YG, Yang CI, Lee JH, Lee JI, Lee JH, Choi YH, Yang SJ, An EK. 2009. An Early -Maturing, Blast Resistant and High Quality Rice Cultivar 'Pyeongwon'. Korean J. Breed. Sci. 41(2):177-181.
4 NCES (National Crop Experiment Station). 1997. Report of Research Project of Paddy Rice. pp. 92-102.
5 NICS. 2006. Report of Research Project of Paddy Rice (Cheolwon Substation). pp. 1-38.
6 RDA. 2008. 2007 Report of Development New Variety of Summer Crops. pp. 9-189.
7 RDA. 2009a. 2008 Report of Development New Variety of Summer Crops. pp. 9-181.