• 한국버섯학회지
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• 제19권2호
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• pp.88-95
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• 2021

국내육성 품종의 부족과 자실체 발생이 불안정한 단점을 보완하고 병해에 강한 백령버섯 신품종 육성을 위해 2015년부터 국내외에서 유전자원을 수집하고 특성검정 후 교배, 특성검정, 생산력 검정, 농가실증 등의 과정을 통해 육성한 백령버섯 신품종 '우람'의 주요 특성은 다음과 같다. 균사생장적온은 26~29℃, 발이 및 생육온도는 15~18℃, 갓형태 평편형, 갓색 백색으로 대조품종(KME 65035)과 유사하였다. 초발이소요일수는 병재배 시 5일, 봉지재배 시 6일로 대조품종보다 2~4일 짧았다. 대직경은 32.6~37.0 mm로 대조품종 44.3~53.1 mm보다 작았으나, 자실체장은 130.4 mm로 대조품종 114.8~115.2 mm보다 길었다. 자실체 유효경수는 병재배 시 1.8개, 봉지재배 시 2.9개로 대조품종보다 많았다. 발이율은 93.3~100%로 대조품종 보다 안정적이었다. 병재배 및 봉지재배 시 수량은 각각 173.1 g/병(1,100cc), 283.4 g/봉지(1.2 kg)으로 대조품종 138.0 g/병(1100cc), 197.4 g봉지(1.2 kg) 보다 25~44% 높았다. 모본 및 대조품종과 대치 배양시 대치선이 뚜렷하였고, 균사체 DNA PCR반응 결과, 밴드패턴이 모본 및 대조품종과 다른 양상을 보여 교배종임을 확인할 수 있었다.

• 인삼문화
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• 제1권
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• pp.57-66
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• 2019

Ginseng has been recognized as a lifespan extending medicine which has been regarded as one of the medicines classified as top medicines, as the Boncho (medical herbs) study which is influenced by the idea of guidance's costume and food concept mainly in China is gaining its bona fide form. As the demand for ginseng has been expanded to other levels, the demand for ginseng has been increasing. Ginseng from the nature reached its supply chain limit due to its extinction and difficulty of picking, so it translated into ginseng cultivation of economy rather than harvesting in nature. After the start of ginseng cultivation, the ginseng cultivation was further enhanced by the rapid development of processing methods such as white-ginseng and red-ginseng, and the surge of consumption due to the traditional belief in ginseng drug efficacy and support of scientific research. In the Joseon Dynasty, the name Gasam (cultivated ginseng) had been created as ginseng was cultivated on farmland after the stage of SanYang (wild cultivated ginseng), the purpose of the new name Gasam is to differentiate from natural ginseng, and natural ginseng lost its firm position as the genuine ginseng as the Gasam replaced the genuine ginseng, and the natural ginseng got a new name of SanSam (wild ginseng). Because the real ginseng substance concept dissipated, and as Gasam is being called ginseng, the name Gasam was also disappeared. As a result, it was possible to grow large quantities according to the arrival of the Gasam era, and it was possible to supply the demand for ginseng, and it could become one agricultural industry. In this ginseng cultivation, in Japan where ginseng did not grow naturally, it was difficult to obtain ginseng from Joseon and faced with a shortage of ginseng at all times. Therefore, the shogun cultivated the Gasam systematically at the national level by the inside of the shogunate. However, since the natural ginseng is native to China and Korea, there is a concern about the deterioration of the quality of natural ginseng due to the incorporation of cultivated ginseng (Gasam). To protect the interests, the cultivation of ginseng was subject to control. For this reason, the lack of historical information on Gasam cultivation, which had to be started secretly, would be a natural result. In this paper, althouh not sufficient enough, the historical informations were used to summarize the history of ginseng cultivation in China, Japan and Korea.

• 한국생물환경조절학회:학술대회논문집
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• 한국생물환경조절학회 2005년도 세계의 친환경 시설원에 기술동향 및 춘계 국제학술대회 발표논문집
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• pp.196-202
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• 2005

• 한국생물환경조절학회:학술대회논문집
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• 한국생물환경조절학회 2004년도 춘계학술대회 논문집
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• pp.172-175
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• 2004

• 한국약용작물학회지
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• 제4권3호
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• pp.265-268
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• 1996

치자나무의 재배실태(栽培實態)와 문제점(問題點)을 파악(把握)하기 위하여 5년간(年間) 재배(栽培)한 결과(結果)를 대상(對象)으로 조사(調査)한바에 따르면, 조숙(早熟), 다수확(多收穫) 치자나무의 품종개발(品種開發)이 시급(時急)하며 소목묘(掃木苗), 상토(床土), 생장조절제(生長調節劑), 삽목시기(揷木時期)등의 시험(試驗)에 의한 삽목묘(揷木苗) 재배법(哉培法) 개발(開發)이 시급(時急)하다. 본포(本圃)에 재식(栽植)된 치자나무의 재식년도(栽植年度), 재식밀도(栽植密度), 추비시기(追肥時期), 추비양(追肥量) 등에 의한 재배법(栽培法) 개발(開發)이 요구(要求)되며, 병충해(病蟲害) 방제(防除)는 농약(農藥)이 아닌 영양요구(榮養要求) 시비(施肥)와 유기농법(有機農法)에 의한 내병충성(耐病蟲性) 재배법(栽培法)의 연구(硏究)가 필요(必要)하다.

• 한국산학기술학회논문지
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• 제15권6호
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• pp.3460-3468
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• 2014

본 연구는 텃밭가꾸기 체험활동이 유아의 탐구능력과 식생활 태도에 미치는 영향을 알아보는데 목적을 갖고, 대전광역시에 위치한 어린이집 만 4-5세반 원아를 대상으로 실험집단 35명(남 20명, 여 15명)과 통제집단 20명(남 8명, 여 12명)의 총 43명을 대상으로 실험조사 하였다. 연구결과 텃밭가꾸기 체험활동이 유아의 탐구능력과 식생활 태도 향상에 효과가 있는 것으로 나타났다. 이같은 결과는 유아들의 텃밭가꾸기 체험활동이 유아의 탐구능력과 식생활 태도 개선에 유용한 활동임을 입증해준 것이라 할 수 있다. 따라서 그동안 유아들의 식생활 태도 개선을 가정의 책임으로 간주하는 인식과 왜곡된 식습관 및 태도개선에 텃밭가꾸기와 같은 자연주제를 활용한 체험활동과 관찰참여의 탐구학습을 적극 권장할 수 있을 것으로 판단되며, 이는 유아들의 탐구학습을 통해 높은 교육효과를 기대할 수 있다는 측면에서 학제적 교육적 측면에서의 유용성을 시사한 것으로 볼 수 있다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.112-112
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• 2017

Rice blast caused by Magnaporthe oryzae is one of the most serious diseases that affect the quantity and quality of rice production. The use of resistant rice varieties would be the most effective way to control the rice blast. However R gene incorporation into the rice variety takes time and pathogen could overcome the R gene effects after for a while. For monitoring the rice blast resistance gene distribution in Korean varieties, the four major blast resistance genes against M. oryzae were screened in a number of Korean rice varieties using molecular markers. Of the 120 rice varieties tested, 40 were found to contain the Pi-5 gene, 25 for the Pi-9 gene, 79 for Pi-b and 40 for the Pi-ta gene. None of these rice varieties includes tested 4 R genes. 3 R genes combination, Pi-5/Pi-9/Pi-b, Pi-5, Pi-9.Pi-ta, or Pi-9/Pi-b/Pi-ta were found in 12 varieties, the rice blast disease severity were showed as resistant in the rice verities containing Pi-9/Pi-b/Pi-ta R genes combination, respectively. Also pathogenic diversity of M. oryzae isolates collected in the rice field from 2004 to 2015 in rice field in Korea were analyzed using rice blast monogenic lines, each harboring a single blast resistance gene. Compatibility of blast isolates against rice blast monogenic lines carrying the resistance genes Pi5, Pi9, Pib, and Piz showed dynamic changes by year. It indicates that pathogen has high evolutionary potential adapted host resistances to increase fitness and would lead to rice blast resistance bred into the cultivar becoming ineffective eventually.

• Environmental Engineering Research
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• 제19권3호
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• pp.283-287
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• 2014

Cultivation of microalgae using wastewater exhibits several advantages such as nutrient removal and the production of high valuable products such as lipid and pigments. With this study, two types of wastewater from instant noodle factory; mixed liquor suspended solids (MLSS) and effluents after sedimentation tank were investigated for green microalga Scenedesmus sp. cultivation under laboratory condition. Optimal wastewater dilution percentage was evaluated in 24 wells microplate. MLSS and effluent without dilution showed the highest specific growth rate (${\mu}$) of $1.63{\pm}0.11day^{-1}$ and $1.57{\pm}0.16day^{-1}$, respectively, in which they were significantly (p < 0.05) higher than Scenedesmus sp. grown in BG11 medium ($1.08{\pm}0.14day^{-1}$). Ten days experiment was also conducted using 2000 ml Duran bottle as culture vessel under continuous light at approximately 5000 lux intensity and continuous aeration. It was found that maximum biomass density of microalgae cultivated in MLSS and effluent were $344.16{\pm}105.60mg/L$ and $512.89{\pm}86.93mg/L$ respectively and there was no significant (p < 0.05) difference on growth to control (BG11 medium). Moreover, cultivation microalgae in wastewater could reduce COD in wastewater by 39.89%-73.37%. Therefore, cultivation of Scenedesmus sp. in wastewater from instant noodle factory can yield microalgae biomass production and wastewater reclamation using photobioreactor simultaneously.

• 한국농공학회논문집
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• 제57권4호
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• pp.113-120
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• 2015

The objectives of this study were to monitor and assess the effects of saline irrigation water on lettuce and carrot growth in protected cultivation. One control and 4 treatments with three replications, which were differentiated according to the level of salinity in irrigated water, were employed for each vegetable to assess the effects of the irrigation with saline water. Monitoring results showed that the use of irrigation water containing above a certain level of salinity was found to cause excessive accumulation of salts in the soil as saline irrigation water increased electrical conductivity (EC) and sodium ($Na^+$) content in both lettuce and carrot soil samples, while tap water irrigation used as control decreased the salinity in the samples. The salinity higher than the threshold level of irrigation water was found to reduce the yields of lettuce and carrot, while in less than the threshold level the higher the salinity of the irrigation water increased the yields. The salinity of the irrigation water also appeared to increase the internal salinity of the plant as the $Na^+$ content in plant increased as the salinity of irrigation water increase. Increased $Na^+$ content was analyzed to be able to increase the sugar content in carrot. This study could contribute to suggest water quality criteria for safe use of saline water in protected cultivation, although long-term monitoring is needed to get more representative results.

• 한국농공학회논문집
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• 제60권3호
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• pp.113-121
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• 2018

The objectives of the research were 1) to develop the low-cost and high efficient desalination system to treat brackish water having high salt contents for irrigation at greenhouses near coast, and 2) to monitor and assess the effects of the brackish water desalination system on soil environment and growth in squash greenhouse cultivation area. The monitoring site was one of the squash greenhouse cultivation farm at Choengam-ri, Jinsang-myun, Gwangyang-si, Jeonnam-Do Monitoring results for groundwater irrigation water quality, and salinity showed a remarkable difference between control and treatment group. The salinity of soil at treatment group was less than at control group. While, the system made possible to increase the squash quantity from 4.7 ea to 6.3 ea at each and the average weight of the harvested squash was increased from 277.2 g to 295.1 g. The applied brackish water desalination system may be appled to reclaim sea or brackish irrigated area as alternative water resources, although long-term monitoring is needed to get more representative results at different level of salinity.