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- Title
A Medium-Maturing, Giant-embryo, and Germination Brown Rice Cultivar 'Keunnun'.
- Authors
Ha-Cheol Hong; Yeon-Gyu Kim; Yong-Hwan Choi; Sae-Jun Yang; Kyu-Seong Lee; Jeom-Ho Lee; O-Young Jung; Chang-In Yang; Young-Chan Cho; Im-Soo Choi; Man-Ki Baek; Myeong-Ki Kim; Jong-Doo Yea; Hung-Goo Hwang; Jae-Hwan Roh; Sun-Lim Kim; Hae-Chune Choi; Young-Tae Lee; Sung-Hee Lee
- Abstract
A new Japonica variety, 'Keunnun' was induced from the mutants of N-methyl-N-nitrosourea (MNU) treatment on fertilized egg cell of Ilpumbyeo by a rice breeding team of National Institute of Crop Science, RDA, in 2005. This variety has about 136 days of growth duration from transplanting to harvesting and a midium-maturty with heading date of August 17 in central plain area of Korea. It has resistance to lodging with strong culm and good semi-elect plant type. The number of panicles/hill of 'Keunnun' is more than that of Hwaseongbyeo. 'Keunnun' has a giant-embryo and richer GABA content than that of Ilpumbyeo after 2 days' germination in sprouting brown rice. It is susceptible to leaf blast, bacterial blight, virus disease and insect pests. The yield performance of this variety is about 4.52 MT/ha in milled rice in local adaptability test for three years from 2003 to 2005. 'Keunnun' is one of cultivars adaptable to central and southern plain area of Korea.
- Subjects
BROWN rice; RICE varieties; PLANT breeding; PLANT embryology; GABA
- Publication
Korean Journal of Breeding Science, 2012, Vol 44, Issue 2, p160
- ISSN
0250-3360
- Publication type
Article