Abstract

본 연구는 남부지역에서 주요 콩 품종의 파종기 이동이 isoflavone 등 생리활성물질에 미치는 영향을 구명하고자 전남 나주(위도 <TEX>$35^{\circ}$</TEX> 04'N, 경도 <TEX>$126^{\circ}$</TEX> 54'E)에서 2008년부터 2010년까지 3년간 수행되었다. 여름형콩 품종인 새올콩과 다원콩, 가을형콩 품종인 태광콩, 풍산나물콩 및 청자3호를 이용하여 파종기를 5월 15일, 5월 30일, 6월 15일, 6월 30일, 7월 15일에 실시하였으며, 주요 결과를 요약하면 다음과 같다. 1. Daidzein 함량은 모든 시험품종에서 genistein과 total isoflavone 함량은 청자3호를 제외한 시험품종에서 파종이 늦어질수록 증가하는 경향이었다. 반면에 glycitein 함량은 다원콩을 제외한 시험품종에서 파종기간 유의차가 없었다. 2. Cyanidin-3-glucoside(C3G) 함량은 다원콩과 청자3호, delphinidin-3-glucoside(D3G)와 total anthocyanin 함량은 다원콩에서만 파종이 늦어질수록 유의하게 증가하였다. 그러나 pelargonidin-3-glucoside(Pg3G)와 petunidin-3-glucoside(Pt3G) 함량은 파종기간 유의차가 없었다. 3. 청자3호의 lutein 함량은 파종기에 따라 <TEX>$2.7{\sim}3.0{\mu}g/g$</TEX>로 유의차가 없었고, chlorophyll 함량은 파종이 늦어짐에 따라 증가하여 6월 30일과 7월 15일 파종에서 유의하게 많았다. 4. 조지방 함량은 태광콩과 청자3호는 조기에 파종할 때 많았고 기타 시험품종은 파종기간 유의차가 없었다. Palmitic acid 조성비는 대부분 시험품종에서 파종기의 영향을 받지 않았다. Stearic acid 조성비는 새올콩, 다원콩, 청자3호에서 파종이 늦을수록 증가하였다. Oleic acid, linoleic acid 조성비는 새올콩에서만 파종기가 빠를수록 유의하게 높았다. Linolenic acid 조성비는 대부분 시험품종에서는 파종이 늦을수록 유의하게 증가하였다. 5. 파종기 이동에 따른 탄수화물과 조단백질 함량은 대부분 시험품종에서 유의차가 없었다. 그러나 새올콩은 조기에 파종할수록, 다원콩은 만기에 파종할수록 조단백질 함량이 많은 경향이었다. The purpose of this study was to investigate the effects of sowing time on the bio-active content of major soybean cultivars in a southern region of South Korea. Experiments were carried out in Naju, Jeonnam Province (latitude <TEX>$35^{\circ}$</TEX> 04'N, longitude <TEX>$126^{\circ}$</TEX> 54'E) from 2008 to 2010. The cultivars grown in summer included Saeol-kong and Tawon-kong and those grown in autumn included Taekwang-kong, Pungsannamul-kong, and Cheongja3, respectively. Sowing dates were May 15 and 30, June 15 and 30, and July 15 of each year. Daidzein content was increased in all the test cultivars grown from later sowing, and the contents of genistein and total isoflavone were increased in all the test cultivars except for Cheongja3. On the other hand, glycitein content showed no significant change in any of the test cultivars across the 5 sowing dates except for Tawon-kong. Cyanidin-3-glucoside (C3G) content was significantly increased in Tawon-kong and Cheongja3, and delphinidin-3-glucoside (D3G) and total anthocyanin contents were significantly increased in Tawon-kong. However, pelargonidin-3-glucoside (Pg3G) and petunidin-3-glucoside (Pt3G) contents showed no significant difference in plants sown across the 5 dates. Lutein content in Cheongja3 was between 2.7 and <TEX>$3.0{\mu}g/g$</TEX> based on sowing date and did not vary significantly, while chlorophyll content increased with later sowing and was significantly higher in the cultivars sown on June 30 and July 15. Crude fat content was higher in Taekwang-kong and Cheongja3 when the cultivars were sown earlier; crude fat did not vary in the other test cultivars based on sowing date. Palmitic acid composition was not affected by sowing date in most of the test cultivars. Stearic acid was increased in Saeol-kong, Tawon-kong, and Cheongja3 with later sowing. Oleic acid and linoleic acid were significantly higher in Saeol-kong at an earlier sowing date. The composition of linolenic acid showed significantly increased dates in most of the test cultivars with later sowing. There were no significant differences in carbohydrate and crude protein content across 5 different sowing dates in most of the test cultivars. However, crude protein content was higher in Saeol-kong when sowing occurred earlier, and was higher in Tawon-kong at later sowing dates.

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