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Composition in Milling Recovery Ratio of Rice Cultivars, Ilpumbyeo and Chucheongbyeo  

Kim, Deog-Su (National Institute of Crop Science, RDA)
Kim, Sun-Lim (National Institute of Crop Science, RDA)
Song, Jin (National Institute of Crop Science, RDA)
Hur, On-Suk (National Institute of Crop Science, RDA)
Kim, Jung-Tae (National Institute of Crop Science, RDA)
Lee, Choon-Ki (National Institute of Crop Science, RDA)
Kim, Jae-Hyun (National Institute of Crop Science, RDA)
Kim, Kee-Jong (National Institute of Crop Science, RDA)
Suh, Sae-Jung (National Institute of Crop Science, RDA)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.53, no.3, 2008 , pp. 308-313 More about this Journal
Abstract
This study was carried out to analysis the factor effected by milling rice rate, and to provide the developing rice varieties and cultivation technology. Panicle numbers per spike of Ilpumbyeo and Chucheongbyeo were 105 and 70, respectively. The primary branch panicle rate was Ilpumbyeo 56.2% and Chucheongbyeo 61.4%. The secondary panicle rate of Ilpumbyeo and Chucheongbyeo was 43.3% and 37.9%, respectively. Grain filling rate using specific gravity showed that Ilpumbyeo was the lower filling rate than Chucheongbyeo. Hull weight per one grain was Ilpumbyeo 41.9 mg and Chucheongbyeo 3.92 mg, and hull weight per rough rice 1 kg was Ilpumbyeo 157.36 g and Chucheongbyeo 151.31 g. In milling rate, brown rice ratio by ripening degree of llpumbyeo and Chucheongbyeo with combine harvest was 81.22% and 82.52%. Milled/brown rice ration of llpumbyeo and Chucheongbyeo showed 92.14% and 92.51%. The milling recovery ratio of llpumbyeo was decreased 1.67% then Chucheongbyeo, and the difference was mainly due to the hull weight (0.61%), milled/brown rice ratio (0.37%) and ripening degree (0.69%). Although the varietal differences were found in hull weight and millied/brown rice ratio between llpumbyeo and Chucheongbyeo, the ripening degree was considered as the factor that could be reduced by cultivation technology and post-harvest management.
Keywords
rice; milling recovery ratio; ripening degree; hull weight; milled/brown rice ratio
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Times Cited By KSCI : 1  (Citation Analysis)
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