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서현택(HyunTaek Seo),원재희(JaeHee Won),전신재(ShinJae Jeon),강호민(Ho-Min Kang) (사)한국생물환경조절학회 2011 생물환경조절학회지 Vol.20 No.2
본 연구는 치커리 뿌리의 외적요인과 치콘의 생체중간에 관계를 분석하고, 이중 높은 상관관계를 보인 요인을 치콘 규격 생산에 적합한 종근의 외적 판단기준으로 이용할 수 있는 자료를 만들고자 수행하였다. 종근의 외적요인인 근경(0.726)과 근중(0.508)의 상관관계를 보면 모두 생체중과 정(+)의 상관관계를 보였다. 치콘 생체중에 영향을 주는 종근의 외적요인인 근경과 근중 중 상대적으로 높은 영향인지를 찾기 위하여 다중회귀 분석을 실시한 결과 치커리 근경의 회귀계수 (6.06<SUP>***</SUP>)만이 유의하여 치콘 생체중에 영향을 미치는 것으로 나타났다. 3가지 품종의 치커리를 근경(x) 크기 별로 x≤30㎜, 30<x≤40㎜, 40<x≤50㎜, x>50㎜로 분류하여 치콘을 생산한 결과 거의 모든 품종에서 근경이 증가할수록 치콘 생체중, 치콘 폭, 엽수 등이 증가하였다. 이상의 결과로 보아 치커리 종근의 탄수화물 함량 등 내부요인을 분석하지 않고, 상대적으로 간편한 외적요인인 치커리 근경을 수확 후 측정하여 치콘의 생체중을 미리 판단할 수 있을 것으로 사료되었다. This study was conducted to investigate correlation between external factors of chicory root and chicon fresh weight, whereby, to provide basic information of external yardstick of producing standardized chicon. For correlation between external factors (root diameter, root weight) of chicory root and chicon fresh weight were highly correlated. The relationship between external factors (root diameter, root weight) of chicory root and chicon fresh weight, root diameter was strongly affecting chicon fresh weight due to significant at its regression coefficient (6.06<SUP>***</SUP>). In order to verify this correlation, the root diameter (x) of chicory that were 3 different varieties were based on the 4 different root diameter treatments, such as x≤30 ㎜, 30<x≤40㎜, 40<x≤50㎜ and x>50 ㎜. The chicon production increased as root diameter increased and the chicon fresh weight, chicon width, and the number of leaves increased as well. Therefore, the measure of root diameter of chicory instead of the internal factors (carbohydrate, and so on.) can be used to predict the chicon fresh weight.
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고랭지 재배시기에 따른 라디치오 품종별 수량 및 품질 비교
김경원 ( Kyeongwon Kim ),서현택 ( Hyuntaek Seo ),이원경 ( Wonkyung Lee ),원재희 ( Jaehee Won ),박영식 ( Youngsik Park ),강호민 ( Ho-min Kang ) 강원대학교 농업생명과학연구원 2022 강원 농업생명환경연구 Vol.34 No.0
This experiment provides basic data for selecting the best variety of radicchio in Gangwon-do, highland. The experiment was conducted in an open field in Taebaek-si (at the high altitude of 800 m) in 2021. Varieties compared were ‘Leonardo’, ‘Raffaello’, ‘Rossini’, ‘Rubro’, ‘Vasari’, ‘Botticelli’, and ‘Canaletto’, which are all widely cultivated in Europe and the United States. The weight, spherical index, and predicted quantity were investigated. Most of the radicchios planted in spring bolted, which aligns with the chicory flower differentiation. Additionally, the high seasonal temperatures impacted the anthocyanin synthesis causing low spring crop quality. In spring, ‘Leonardo’ had the highest cultivation period with a rate of 93.3% and an average weight of 343 g. ‘Leonardo’ was also the best for the predicted yield per unit area of 1,170 kg/10 a. In autumn, ‘Leonardo’ had the highest product rate of 84.4%. However, ‘Canaletto’ was the heaviest at 376.6 g. There was not a statistically significant weight difference between ‘Canaletto’, ‘Leonarod’, ‘Raffaello’, or ‘Rossini’. The highest predicted yield per unit area was ‘Canaletto’ at 1,102 kg/10 a. Therefore, we select ‘Leonardo’ as the best variety, it consistently displayed the highest quantity and quality of radicchio for growing in both spring and autumn in high altitude regions.
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산광성 PO필름 산광율에 따른 재배환경과 상추 생육특성 비교
이원경 ( Wonkyung Lee ),김경원 ( Kyeongwon Kim ),서현택 ( Hyuntaek Seo ),박영식 ( Yongsik Park ),원재희 ( Jaehee Won ),강호민 ( Homin Kang ) 강원대학교 농업생명과학연구원 2022 강원 농업생명환경연구 Vol.34 No.0
Three types of polyolefin (PO) film with haze values of 15.9 % (H16), 37.3 % (H37), and 81.0 % (H81) were tested. Compared to H16, H81 had a 14.4 %, 8.2 %, and 4. 5% lower transmittance atof ultraviolet, visible, and near-infrared wavelengths, respectively. Low UV-A transmittance may adversely affect anthocyanin production and red pigment expression. The average daily light integral (DLI) during the cultivation period was 48.0 mol·m<sup>-2</sup>·d<sup>-1</sup>, and the average total clouded and sunshine hours were 5.2 and 8.4, respectively. The average DLI by treatment was 18.4 mol· m<sup>-2</sup>·d<sup>-1</sup> (H16), 19.3 mol·m<sup>-2</sup>·d<sup>-1</sup> (H37), and 17.5 mol·m<sup>-2</sup>·d<sup>-1</sup> (H81). The DLI deviation by location was the smallest in H81. The average temperatures during the high-temperature period were 26.8°C (H16), 26.9°C (H37), and 26.5°C (H81). that The optimum growth temperature for lettuce is 15-20 °C. Therefore, the yield was expected to be the highest in H81 due to the lower temperature. The average DLI during cultivation was 32-35 mol·m<sup>-2</sup>·d<sup>-1</sup>, which is a level that requires shading. the H81 had the highest shading effect, resulting in lettuce with the highest fresh weight. The low red pigment expression by lettuce in the H81 may be due to the low anthocyanin production in the high-temperature conditions with low UV-A transmittance.ato , The cultivation environment could be improved by applying a covering material with a high haze rate. However, in high-tunnel poly-greenhouses, applying an environmental control system is challenging (for example adding screens). To increase yield, it may be advantageous to use H81, but cultivating red lettuce requires addressing ,should be paid color defects.
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