• 한국작물학회지
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• 제25권2호
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• pp.64-67
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• 1980

참깨품종 '수원9호'의 만식재배시 적정수확기를 결정하기 위하여 성숙후기로부터 주기적으로 sampling하여 수량발연항목들을 조사하고 삭수분함량, 개삭율 및 조직노화상태를 기록하였다. 아울러 작물건조제 Diquat을 살포하여 그의 효과와 이용가능성을 검토하였다. 1. 개체당 종실수량과 종실수는 9월 18일 수확에 이미 최대에 달하있고, 이들은 그후 점차 감소하였으나 천입중은 9월 29일 수확기까지 증가하는 추세이였다. 2. 수확기가 늦어질수록 삭수분함량 감소하고 반면 개삭율은 증가하였다. 삭의 열개는 수분함량이 70% 이하로 떨어졌을 때 발생하였고 탈입에 따른 수량저하 급격히 증대되는 시기는 수분함량이 65% 이하이고 개삭률이 50 %이상인 때부터이었다. 3. 적정수확기는 종실수가 최대로 확보되고 삭수분함량이 70%이하로 떨어질 때부터이며 엽의 황화는 _상위절까지 지전되고 50%삭이 황화되였을 때에 해당하였다. 4. 엽의 탈락이후의 천입중의 증가는 삭의 storage pool로서의 기능으로 보여지며 삭조직중의 약 5%가량이 종실중 증가에 기여하였다. 5. Diquat을 식물체에 살포하였을 때 5 일후에 삭수분함량은 40 % 이하로 떨어지고 7일후에는 90% 이상 개삭이 일어났다. 이는 포장상태 참깨보다 2주이상 건조를 촉진시켰으며 균일화의 효과가 있었다.

• Applied Biological Chemistry
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• 제36권6호
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• pp.407-415
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• 1993

참깨를 100, 200, $300^{\circ}C$에서 각각 30, 60, 90, 120분 동안 볶은 다음 짜낸 참기름의 수율과 갈색침전물의 생성량을 조사한 결과, $200^{\circ}C$에서 90분간 볶은 경우가 기름의 수율이 높고 갈색침전물함량이 낮았다. 관능검사에의한 참기름의 향과 맛을 평가하였을 때도 $200^{\circ}C$에서 90분간 처리구가 가장 좋게 나타났으며, 가장 많은 수의(31 화합물) 휘발성향기성분이 분리, 동정되었다. 이 시료에는 다른 처리구에 비해 furfurals(달콤한 사탕냄새)과 pyrazines(고소한 냄새)의 함량이 높은 반면, 기름의 산화취를 내는 화합물인 aldehydes$(C5{\sim}C10)$와 ketones의 함량이 낮았다. 따라서 향기와 냄새 좋은 참기름을 얻기 위해서는 참깨를 $200^{\circ}C$에서 90분간 볶는 것이 좋을 것으로 사료된다.

• 한국작물학회지
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• 제49권1호
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• pp.46-51
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• 2004

The film coated snap bean (Phaseolus vulgaris) seeds with five different coating materials treated with 3% increase in seed weight were planted at sandy loam soil controlled moisture content of 18, 19, 20 and 21 %. The oxygen diffusion rate (ODR) was calculated from the different moisture content soil. The number of normal seedlings, seedling vigor, and seedling capability in field (seed vigor x dry matter weight) were observed at 9 days after planting and compared to the changes of ODR. The germination rate and ODR were sharply decreased simultaneously in the seeds planted at 21 % soil moisture content. Seedling emergence did not occur at all as the soil moisture content increased above 22 %. Hence this value should be considered as the threshold of soil moisture content for seedling emergence. An ODR value under 20% did not influence the percent emergence significantly. The certain difference observing in the emergence at the same ODR was not related clearly to the condition of soil. So it can be assumed that the limit of soil moisture content for the emergence of snap bean was approximately 20%. The value of 18% soil moisture content may be considered as the optimum for snap bean emergence. There was close relationship between the mean value of ODR in different soil moisture contents and the emergence. The germination rates of the seeds coated with the different materials were quite different when the seeds were planted at 21 % soil moisture. Dry weight of the seedlings from film coated seeds was decreased slightly, but the germination rates were not much different from the non-treated control under relatively higher soil moisture content (21 %). Major factor lowering emergence rate was oxygen stress while film coating act as a minor constraint for snap bean sown in excess soil moisture condition.

• 한국약용작물학회지
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• 제7권4호
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• pp.269-274
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• 1999

홍화(紅花)의 안전다수확(安全多收穫) 재배기술(栽培技術) 확립(確立) 일환(一環)으로 무처리(無處理), 파종시(播種時), 개화시(開花時), 개화기(開花期), 개화후(開花後) 10일부터 수확기(收穫期)까지 비가림재배의 효과를 구명코자 시험한 결과를 요약하면 다음과 같다. 홍화(紅花)는 일찍 비가림 재배에 의하여 출아기(出芽期)와 개화기(開花期)가 빨랐으며 지상부 생육이 양호하였다. 10a당 종실(種實)은 파종부터 수확기까지 일찍 비가림한 것이 387kg으로 노지재배 198kg에 비해 95%증수 되어 비가림 적기로 판단되었다. 홍화 종실의 색도는 파종부터 수확기까지 비가림 한 것이 명도가 가장 높고 적색도와 총색도가 가장 낮아 거의 횐색 을 나타내었다. 비가림 시기에 따른 경제성(經濟性)은 파종부터 수확기까지 비가림이 가장 높았는데 노지재배 10a당 소득 3,675천원에 비해 파종부터 수확기까지 비가림은 6,705천원으로 82%정도 소득이 향상되었다.

• 한국재료학회지
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• 제13권3호
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• pp.174-179
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• 2003

Thin copper films were grown by electrodeposition on copper seed layers which were grown by sputtering of an ultra-pure copper target on tantalum nitride-coated silicon wafers and subsequently, cleaned in ECR plasma. The copper films were then subjected to ⅰ) vacuum annealing, ⅱ) rapid thermal annealing (RTA) and ⅲ) rapid thermal nitriding (RTN) at various temperatures over different periods of time. XRD, SEM, AFM and resistivity measurements were done to ascertain the optimum heat treatment condition for obtaining film with minimum resistivity, predominantly (111)-oriented and smoother surface morphology. The as-deposited film has a resistivity of ∼6.3 $\mu$$\Omega$-cm and a relatively small intensity ratio of (111) and (200) peaks. With heat treatment, the resistivity decreases and the (111) peak becomes dominant, along with improved smoothness of the copper film. The optimum condition (with a resistivity of 1.98 $\mu$$\Omega$-cm) is suggested as the rapid thermal nitriding at 400oC for 120 sec.

• Journal of Forest and Environmental Science
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• 제35권4호
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• pp.232-239
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• 2019

This study was carried out to establish an efficient selection condition for cold-tolerant individuals among evergreen Quercus spp. To select higher cold-tolerant individuals among four species of evergreen Quercus spp. (Q. acuta, Q. glauca, Q. myrsinaefoila, and Q. salicina), an-year-old seedlings of each species were exposed to low temperature in serial, and then examined for the death of cell tissue and the surface temperature was monitored. It was shown that the higher numbers of seedlings of Q. myrsinaefolia were survived than the others when those seedlings are exposed to cold stress. Thus, selection of the cold tolerant individuals was conducted on Q. myrsinaefolia seedlings. The limit low temperature condition for selecting cold-tolerant individuals was -6℃ for 24 hrs because no seedling of Q. myrsinaefolia was survived after exposed to -7℃ for 24 hours. It was shown that the leaf surface temperature of the selected individuals was higher than those of the non-selected individuals when they were exposed to cold-stress while monitoring them using thermal graphic camera. The results in this study can be used for expanding afforestation area of tree species of the warm temperate zone for preparation of climate change.

• 복식문화연구
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• 제7권2호
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• pp.315-322
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• 1999

The acquistion and dyeability of the Gardenia jasminoides were examined to establish the optimum condition for extraction and storage in the process of obtaining the natural dye, Gardenia jasminoides colorant. Also the dyeability and colorfastness of Gardenia jasminoides were investigated. The results of this study are as follows. The optimum part-removed seed. In all experiments, the part of fat-removed seed and pericarp was used. The optimum condition for extraction of Gardenia jasminoides colorant was at 40℃ and for 90 min. in methanol. As storage temperature was higher, the absorbance of colorant extract decreased rapidly. The Gardenia jasminoides colorant exhibited dyeability to cotton, silk, wool, and nylon. The dyeability was the greatest in wool, and then nylon, silk, and cotton. Both wool and nylon had the greatest K/S value at pH3, however, nylon and cotton at pH 6 and pH 8 respectively. In addition, the increase in K/S value corresponded to temperature in wool and nylon, but the silk and cotton had the greatest K/S value at 60℃. Also, the K/S value increased in concomitant with the increased number of dyeing repetition. In the most cases, colorfastness of light was weak but colorfastness of laundry, sweat was relatively excellent.

• 한국작물학회지
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• 제46권2호
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• pp.106-111
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• 2001

The applicability of near infrared reflectance spectroscopy(NIRS) was tested to determine the protein and oil contents in ground soybean [Glycine max (L.) Merr.] seeds. A total of 189 soybean calibration samples and 103 validation samples were used for NIRS equation development and validation, respectively. In the NIRS equation of protein, the most accurate equation was obtained at 2, 8, 6, 1(2nd derivative, 8 nm gap, 6 points smoothing and 1 point second smoothing) math treatment condition with SNV-D (Standard Normal Variate and Detrend) scatter correction method and entire spectrum by using MPLS (Modified Partial Least Squares) regression. In the case of oil, the best equation was obtained at 1, 4, 4, 1 condition with SNV-D scatter correction method and near infrared (1100-2500nm) region by using MPLS regression. Validation of these NIRS equations showed very low bias (protein:-0.016%, oil : -0.011 %) and standard error of prediction (SEP, protein: 0.437%, oil: 0.377%) and very high coefficient of determination ($R^2$, protein: 0.985, oil : 0.965). Therefore, these NIRS equation seems reliable for determining the protein and oil content, and NIRS method could be used as a mass screening method of soybean seed.

• Current Research on Agriculture and Life Sciences
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• 제15권
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• pp.47-52
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• 1997

새우난초, 금새우난초 및 이들 교잡종자(交雜種子)의 기내(機內) 무균발아(無菌發芽)에 적합(適合)한 기내(機內) 배양조건(培養條件)을 구명(究明)하기 위하여 수분후(受粉後) 일수(日數), 기본배지(基本培地), 초음파(超音波) 처리효과(處理效果) 실험(實驗)을 수행(遂行)하였다. 수분후(受粉後) 100일(日)된 새우란 종자(種子)를 MS배지에 파종(播種)하였을 때 발아율(發芽率)이 가장 양호(良好)하였으며 초음파(超音波) 처리시간별(處理時間別)로는 10분간(分間) 처리(處理)한 다음 파종(播種)하였을 때 발아소요일수(發芽所要日數)는 단축(短縮)되고 발아후(發芽後) 유묘(幼苗)의 생육(生育)도 양호(良好)한 경향(傾向)이었다.

• Mycobiology
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• 제34권2호
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• pp.79-82
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• 2006

The germination rate and longevity of seeds of Gastrodia elata Blume have been observed for 48 weeks using Mycena osmundicola strain H-21, one of fungi stimulating seed germination. Storage condition of post-harvest seeds was observed in the different temperature ranges of $-30^{\circ}C,\;-5^{\circ}C,\;5^{\circ}C\;and\;30^{\circ}C$ for 48 weeks. After storage period of 48 weeks, the germination rate of G elata was 65.7% at $5^{\circ}C$ and 71.6% at $-5^{\circ}C$, respectively. Although the germination rate of G. elata was 77.3% for 11 weeks at $25^{\circ}C$, the germination rate had been decreased gradually to 49.3% at 13 weeks, 0.3% at 23 weeks and then 0% at 25 weeks. The germination rate was reached to the level of 10% for 2 weeks at $-30^{\circ}C$ and then decreased to 0%.