• 한국작물학회지
• /
• 제51권spc1호
• /
• pp.283-291
• /
• 2006

To investigate seed non destructive and fast determination technique utilizing near infrared reflectance spectroscopy (NIRs) for screening ultra high oleic (C18:1) and linoleic (C18:2) fatty acid content sesame varieties among genetic resources and lines of pedigree generations of cross and mutation breeding were carried out in National Institute of Crop Science (NICS). 150 among 378 landraces and introduced cultivars were released to analyse fatty acids by NIRs and gas chromatography (GC). Average content of each fatty acid was 9.64% in palmitic acid (C16:0), 4.73% in stearic acid (C18:0), 42.26% in oleic acid and 43.38% in linoleic acid by GC. The content range of each fatty acid was from 7.29 to 12.27% in palmitic, 6.49% from 2.39 to 8.88% in stearic, 12.59% of wider range compared to that of stearic and palmitic from 37.36 to 49.95% in oleic and of the widest from 30.60 to 47.40% in linoleic acid. Spectrums analyzed by NIRs were distributed from 400 to 2,500 nm wavelengths and varietal distribution of fatty acids were appeared as regular distribution. Varietal differences of oleic acid content good for food processing and human health by NIRs was 14.08% of which 1.49% wider range than that of GC from 38.31 to 52.39%. Varietal differences of linoleic acid content by NIRs was 16.41% of which 0.39% narrower range than that of GC from 30.60 to 47.01%. Varietal differences of oleic and linoleic acid content in NIRs analysis were appeared relatively similar inclination compared with those of GC. Partial least square regression (PLSR) among multiple variant regression (MVR) in NIRs calibration statistics was carried out in spectrum characteristics on the wavelength from 700 to 2,500 nm with oleic and linoleic acids. Correlation coefficient of root square (RSQ) in oleic acid content was 0.724 of which 72.4 percent of sample varieties among all distributed in the range of 0.570 percent of standard error when calibrated (SEC) which were considerably acceptable in statistic confidence significantly for analysis between NIRs and GC. Standard error of cross validation (SECV) of oleic acid was 0.725 of which distributed in the range of 0.725 percent standard error among the samples of mother population between analyzed value by NIRs analysis and analyzed value by GC. RSQ of linoleic acid content was 0.735 of which 73.5 percent of sample varieties among all distributed in the range of 0.643 percent of SEC. SECV of linoleic acid was 0.711 of which distributed in the range of 0.711 percent standard error among the samples of mother population between NIRs analysis and GC analysis. Consequently, adoption NIR analysis for fatty acids of oleic and linoleic instead that of GC was recognized statistically significant between NIRs and GC analysis through not only majority of samples distributed in the range of negligible SEC but also SECV. For enlarging and increasing statistic significance of NIRs analysis, wider range of fatty acids contented sesame germplasm should be kept on releasing additionally for increasing correlation coefficient of RSQ and reducing SEC and SECV in the future.

• 원예과학기술지
• /
• 제31권5호
• /
• pp.652-655
• /
• 2013

한국에서 야생(잡초)참외의 자생분포지역은 서해의 옹진군으로부터 남으로 보령 서산(태안), 서천, 군산, 부안, 고창, 영광, 무안, 신안, 해남, 진도, 완도, 고흥, 여수, 하동, 남해, 고성, 통영, 거제시 등의 해안 또는 도서 지방과 제주시, 북제주군 및 남제주군이었다. 이들 지역에서 농경지 또는 그 부근에서 현존하고 있음을 확인하였다. 야생참외가 자생하고 있는 장소는 농경지 및 그 부근이었다. 지방별 자생하고 있는 농경지내용은 대두밭에서 가장 많았다. 다음은 녹두밭, 고구마밭, 고추밭, 참깨밭, 목화밭, 땅콩밭 순위의 빈도였다. 조 밭 주변, 개울가의 논두렁, 밭두렁, 수박밭, 옥수수밭, 농가인접의 채소밭, 감귤밭, 퇴비무더기, 폐농지, 도로변 및 기타 농가정원에서도 자생하고 있었다. 대체로 키가 낮은 작물의 경작지이면서 광선공간이 있고 다소 건조한 곳에서 자생이 많았다. 과실의 숙기는 7월 상순에서 10월 하순까지였는데 9월의 응답빈도가 많았다. 과실이 성숙되면 꼭지가 빠지는데 이는 자생에 효율적인 특성으로 추정되었다. 과실의 용도는 장난감과 식용이 많았다. 과실을 사람이나 가축이 먹고 분으로 배설된 것을 밭거름으로 사용하면 거기서 발아되어 결실되고 익은 과실은 추수기에 사람이나 가축이 다시 먹게 되어 세대가 유지되는 것으로 추정되었다.