지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
“Cheongan” is a new japonica rice variety developed from a cross between SR15225-B-22-1-2-1 and Iksan431 in
summer season, 1997 by National Institute of Crop Science, RDA. The line SR15225-B-22-1-2-1 has good canopy architecture
and multi-disease and insect resistance, and Iksan431 has translucent milled rice and good eating-quality. Heading date of
Cheongan is August 13 in central lowland and mid-mountainous areas. “Cheongan” having culm length of 84 cm shows
relatively semi-erect pubescent leaf blade and rigid culm, tolerance to lodging with and good canopy architecture. This variety
has 14 tillers per hill and 126 spikelets per panicle. It shows tolerance to heading delay and spikelet sterility comparable to
Hwaseongbyeo when exposed to cold stress. Leaf senescence of Cheongan progresses slowly during the ripening stage and the
viviparous germination ratio was 59 %, similar to that of Hwaseongbyo. “Cheongan” shows moderately resistance to blast
disease, but susceptible to stripe virus and brown planthopper. The milled rice of “Cheongan” exhibits translucent, clear non
-glutinous endosperm and medium short grain. It shows similar amylose content of 18.7%, gelatinization temperature, and similar
palatability of cooked rice compared to Hwaseongbyeo. The milled rice yield of this cultivar is about 5.54 MT/ha at ordinary
season culture in local adaptability test for three years. Especially, “Cheongan” has better milling properties of higher 98.4%
and 73.9% in the percentage of head rice in milled rice and milling recovery of head rice, respectively, than those of
Hwaseongbyeo. “Cheongan” could be adaptable to the central and mid-southern plain area, and mid-western coastal area of
Korea.
목차
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