본 연구는 국내육성 사과품종들 중 대구광역시 군위지역에 재배가 적합한 품종을 선발하고자 ‘골든볼’, ‘아리원’, ‘아리수’, ‘이지플’, ‘피크닉’, ‘컬러플’사과품종에 대하여 과실특성 및 저장성을 분석하였다. 각 품종에 대해 품종등록시 과실특성과 비교하였을 때, ‘골든볼’사과는 수확시 경도가 88.4 N으로 다른 품종들에 비하여 매우 높고, 당도와 산도가 각각 14.4 oBrix와 0.37%를 보였으며, 과피색의 황색도는 44.1로 황색계통의 특성이 충분히 발현되었다. 그리고 ‘피크닉’사과는 경도가 66.2 N, 당도 14.7 oBrix, 산도 0.33%를 보였고, 과피 양광면의 적색도는 29.9로 적색계통의 특성이 잘 나타났으나, 바탕면의 적색도는 2.5로 낮아 과실 전체의 착색이 부족하였다. 그리고 ‘아리원’, ‘아리수’, ‘이지플’, ‘컬러플’과실들은 품종등록시 과실특성 기준에 비하여 당도와 산도가 모두 낮은 결과를 보였다. 저온저장중 과실품질변화를 보면, 경도는 6품종 모두 수확시와 비슷한 수준을 유지하였다. 특히, ‘골든볼’ 사과는 저장 80일 후에도 경도가 79.7 N으로 높게 유지되고, 당도와 산도, 그리고 당산비는 수확 시와 비슷하게 유지되었다. 저온저장중 과피색 변화는 품종과 관계없이 명도는 유지되고 적색도와 황색도는 저장기간에 따라 다소 증가하는 경향을 나타내었다. 따라서 대구광역시 군위지역에서는 과실의 유전적 특성이 잘 발현되는 ‘골든볼’사과품종의 재배가 가장 적합할 것이라고 판단되었다.

Within the framework of a project entitled “Development of Advanced Sweet Potato Cultivation Technology for Smallholder Farmers in Paraguay” implemented by KOPIA Paraguay Center (Korea Partnership for Innovation of Agriculture) in collaboration with Paraguayan Institute of Agricultural T echnology (I PTA) d uring the period 2021-2024, r esults o f four m ain e xperiments are described in this research: selection of suitable varieties, optimal planting and harvesting times, the use of ridges, and optimal chemical fertilization doses. In the selection of suitable varieties for Paraguay, 11 sweet potato varieties were evaluated in departments of San Pedro and Misiones. As a result, varieties Andaí, Jety Paraguay, and Chaco I showed the highest productivity in San Pedro, while varieties Jety Uruguayo, Chaco I, and Taiwanés showed higher productivity in Misiones. The other three experiments were carried out in San Pedro only. Optimal planting and harvesting times were determined with three varieties: Andaí, Pyta Guasu, and Jety Paraguay. For Andaí and Jety Paraguay varieties, they should be planted in December and harvested at 122 days post planting (DPP). For Pyta Guasu, it should be planted in October and harvested at 124 DPP. Regarding productivity response with soil preparation methods, the use of ridges showed higher yields in all planting methods, with the curved method planting being the most productive. Finally, optimal chemical fertilization doses were established in order to improve the total yield. The optimal nitrogen fertilizer dose (urea 45% N) was 40 kg/ha. The optimal phosphorus fertilizer dose (triple superphosphate 45% P2O5) was 80 kg/ha and the optimal potassium fertilizer dose (potassium chloride 60% K2O) was 120 kg/ha.

Cordyceps militaris is widely used in China, Korea, and other Asian countries as both a traditional medicinal ingredient and an edible fungus. This study aimed to optimize the growth conditions and fruiting body production of C. militaris by investigating various culture media and physical parameters such as pH, aeration, illumination, temperature, spawn materials, and oat–sawdust-based substrate formulations. After a 7-day incubation period, oats with a pH of 6.0, under sealed and illuminated conditions at 32°C, demonstrated the most effective mycelial growth. Substrates consisting of 70% oat and 30% sawdust had the shortest incubation time of 30.5 days for fruiting body formation. The basidiospores showed a typical germination pattern where the sporidium produced a single germ tube that elongated, and branched to form monokaryotic primary mycelia. In conclusion, using oats as a substrate in the cultivation of C. militaris could reduce production costs and help protect the environment.

본 논문은 급변하는 글로벌게임시장에 효과적으로 대응하고, 한국의 게임산업 경쟁력 제고 와 수도권 중심의 산업 구조를 탈피하기 위한 노력의 일환으로 전남지역 게임산업의 현황 및 발전 방안에 대하여 연구하였다. 이를 위해 우선 전남 게임 콘텐츠 산업 및 인재 양성의 현황 을 분석하여 타시·도 대비 전남지역만의 게임콘텐츠 혁신 역량을 분석하였다. 더불어 전남정보 문화산업진흥원 수혜기업 지원 현황과 실태파악을 위해 유선전화 및 서면조사 및 전문가 인터 뷰를 통한 실증 연구를 도입하였다. 이를 바탕으로 현 게임 산업 트렌드와 정부의 게임 산업 진흥 종합계획을 고려한 전남지역만의 게임콘텐츠 지원 방향과 육성 전략을 도출하였다. 분석 결과 경험과 제작 능력을 갖춘 게임 개발사의 국내외 시장 진출 강화, 도내 IP를 활용한 지역 특화 서브컬처 게임 제작 지원, 지역 대학과의 산학협력을 통한 인재양성 등의 전략을 제언하 였다.

A new oak mushroom cultivar ‘K815’ was bred from monokaryotic strains of ‘Jadam-2’ and ‘LE191732-118’. The optimal temperature for mycelial growth of ‘K815’ was 25oC, and the temperature for primordia formation and fruiting body development was 15~20oC. The fruiting body morphology is hemispherical and the fruiting form is sporadic. Total cultivation period of the new cultivar, from inoculation to its first harvest, was 133 days, which was 3 days longer than control cultivar ‘Jadam’ (129 days), with 32 days for spawn running, 89 days for browning, 4 days for primordia formation, and 8 days for fruiting body development. In the fruiting body, the thickness and diameter of pileus of the new cultivar were 32.2 mm and 58.3mm, respectively, and the length of stipe was 35.6 mm. Compared to the control cultivar ('Jadam', 'L808'), the pileus of the new cultivar was thicker and smaller and the length of stipe was shorter. The total number of fruiting bodies of ‘K815’ was 58.9, which was higher than the control varieties and total yield of 2 crop cycle of ‘K815’ was 580 g (per 3 kg substrate), which was similar to the control variety.

During the cultivation of wheat sprouts, antioxidant activity was measured during each cultivation period. Wheat sprouts from the cultivation period showing the highest antioxidant activity were added at different concentrations to make wheat sprout sulgidduk. Their physicochemical properties then were measured. As a result, when wheat sprouts were cultivated to about 14 cm, contents of ascorbic acid and polyphenol compounds were the highest. Their ABTS radical scavenging activities also showed high values. Thus, wheat sprouts grown about 14 cm were added at a concentration of 0 to 7% to prepare wheat sprout sulgidduk. The lightness (L) of the control was the highest. Redness (a) and yellowness (b) of wheat sprout sulgidduk increased as the amount of wheat sprout added increased. Contents of ascorbic acid and polyphenol compounds and ABTS radical scavenging activities of wheat sprout sulgidduk added with the highest wheat sprout content were significantly higher than those of others. Regarding the texture, the addition of wheat sprout resulted in slightly higher hardness, gumminess, and chewiness than the control. However, springiness and cohesiveness were not significantly different between treatment groups.

본 연구는 로즈마리 다단재배 시 층별 환경조건 및 하위선반 보조 광원이 어린순 품질과 생산성에 미치는 영향을 구명하고 자 수행되었다. 정아를 제거한 커먼 로즈마리의 중간부 삽수 10cm를 128공 트레이에 삽목하여 발근시킨 뒤 750, 1,300, 2,000mL의 화분에 이식하였다. 이후 2연동 온실 내 다단선반 (3단)에 배치하여 저면관수 방식으로 재배하였다. 다단선반 층별 어린순 생산성은 3층(최상층)에서 가장 우수하였으나, 여름철 광 과다에 의한 줄기 목질화로 9월 이후 생산성이 급감 하였다. 반면 하위 2개 층은 재배 후기까지 어린순의 생장속도 가 빨랐으나, 줄기 연화 및 엽 상편생장으로 품질이 감소하였 다. 다단선반 3층 여름철 광 과다 문제 해결을 위해 7, 8월 30% 차광 재배시 무차광 대비 단위 면적당 어린순 수확 줄기수 210%, 생체중 162% 증수하였다. 하위층 광 부족 문제를 개선 하고자 보조 광원 설치 재배 시 LED 30W에서 6－9월 어린순 수확량이 보조광원 미설치 대비 168% 증가하였으나, 9월 이 후 오히려 생산성을 감소시켰다. 따라서 로즈마리 다단재배 시 3층(최상층)은 7－8월 30% 차광으로 줄기 목질화를 막고, 하 위층은 6－9월 LED 30W로 일시적 보광을 통해 어린순 생육 을 증대시킨다면 어린순 집약생산이 가능할 것으로 판단된다.

본 연구는 로즈마리 다단재배 시 근권부 용적이 어린순 생산성에 미치는 영향을 구명하고자 수행되었다. 정아를 제거한 커먼 로즈마리의 중간부 삽수 10cm를 128공 트레이에 삽목 하여 발근시킨 뒤 125, 200, 550, 750, 1,300 및 2,000mL의 용 기에 이식하여 1, 2년생 삽목묘 어린순의 생육특성과 수량성 을 비교하였다. 1년생 로즈마리의 경우 초기 생육(이식 후 30 일)은 용기 550mL 이상에서 처리 간 뚜렷한 차이가 없었으나, 2년생 로즈마리의 경우 용기가 클수록 생육이 비례하는 경향 을 보였다. 1, 2년생 로즈마리의 지하부 생체중은 용기 550mL 에서 7월 25일 조사 시 각각 6.9g, 24.4g, 11월 24일 조사 시 각 각 10.3g, 24.9g으로 가장 낮았고, 용기 750－2,000mL에서 는 처리 간 차이가 보이지 않았다. 반면 지상부 생체중은 1년 생 로즈마리의 경우 용기가 클수록 증가하다가 1,300mL 이 상에서는 통계적 차이가 없었으며, 2년생 로즈마리 역시 용기 가 클수록 생체중이 유의하게 높았다. 어린순 품질은 1년생 로 즈마리의 경우 용기 2,000mL에서 가장 우수하였으나, 2년생 로즈마리의 경우 시기별 품질 차이를 보였다. 단위 화분당 어 린순 생산성은 1,300mL에서 가장 높았으나, 단위 면적당으 로 환산할 경우 750mL에서 가장 우수하게 관찰되었다. 따라 서 로즈마리 어린순 다단재배를 통한 집약생산에 가장 적합한 용기 크기는 750mL로 판단된다.

As part of the KOPIA Paraguay Center rice pilot villages project, conducted from July 1, 2021, to the end of June 2024, this study examined the average yield and value of paddy rice harvested between January and April 2023 in five local rice pilot villages in Paraguay: Santa Rosa, Eusebio Ayala, Coronel Bogado, Santa Maria, and Yaguaron. The CEA-5K-PUNTA variety was planted in late August 2022 and subsequently harvested from January to April 2023. The farmers in the pilot villages received information on common pests, diseases, and weeds, including instructions on timing and the number of applications required for their control. They also received technical guidance on water management and weeding methods. The study found that the average yield per hectare in the pilot villages for the CEA-5K PUNTA variety in the 2022/2023 growing season was 794.50 kg/10a, compared to 477.17 kg/10a for the conventional variety IRGA 424 in the 2019/2020 season, which preceded the project. This indicates a 66.5% increase in yield per hectare for the pilot village farmers compared to the pre-project period (2020/2021). The analysis of paddy rice production value in the pilot villages, using the Difference in Differences method, revealed a 65.1% increase. Moreover, a financial analysis was conducted based on the addition of agricultural inputs to the paddy fields during the period from the end of August 2022 to January-April 2023. The analysis showed that the total cost was US$597.25 per hectare, while the gross income was US$1,685.3 per hectare. As a result, the net profit per hectare amounted to US$1,088.05.

Meristem culture (MC) is a technique for producing virus-free garlic plants with high vigor and productivity. We assessed the changes in the agronomic traits of “Namdo” garlic over several generations after the cultivation of MC-induced bulbils. We examined the plant height, leaf sheath length and diameter, leaf number, bulb weight and diameter, clove number, and bulb size distribution. Compared with that of the control, bulb weights of the first-generation bulbils cultivated for three and two years and the second-generation bulbils cultivated for one year increased by 8.7–27.2, 13.9–30.4, and 36.6–46.9%, respectively. In three and two-year cultivation of the firstgeneration bulbils and one-year cultivation of the second-generation bulbils, the proportions of extra-large-sized bulb weight in meristem-cultured plants were 16.2–38.6, 24.0–35.8, and 27.1–51.1%, respectively, whereas that of the control was 7.6%. Thus, the first-generation bulbils can be cultivated for three years to renew the seed bulbs while maintaining productivity.

This study analyzed the changes in the nutritional components, properties, physicochemical properties, general bacteria, and lactic acid bacteria of pickled cabbage depending on the cultivation area. An analysis of the nutritional composition on the first day of storage showed no significant difference in the calories, carbohydrates, protein, fat, and dietary fiber contents regardless of the cultivation region, but regional differences were observed in the vitamin C content in the order of Andong > Pyeongchang > Haenam. The total free amino acid content appeared in the order Andong > Pyeongchang > Haenam, and the GABA (-amino-n-butyric acid) content appeared in the order Haenam > Andong > Pyeongchang. In addition, pickled cabbage was observed on the 1st, 5th, and 10th days of storage at 4oC. No significant change in appearance was observed on the 1st and 5th days, but changes were observed on the 10th day. Regardless of the cultivation area, the salinity (p<0.05) and pH (p<0.05) decreased significantly as the storage period increased, while the sugar content (p<0.05) and acidity (p<0.05) increased significantly. The general bacteria (p<0.05) and lactic acid bacteria (p<0.05) counts increased significantly as the storage period increased, irrespective of the cultivation region.

콩과 같은 밭작물은 주로 토양으로부터 수분을 공급받으며 토양 수분 조건에 따라 생육 반응이 민감하게 반응한다. 작물의 생육과 재배 지역의 토양 조건, 기상 등에 따라 적정 토양 수분을 유지하는 것은 작물 생산량의 증가를 위해 중요하다. 따라서, 본 연구에서는 머신러닝 기법을 이용하여 토양 수분 함량 예측 모델을 개발하였다. 깊이에 따른 토양 수분과 외기, 강수량 등 기상 변수와의 상관 관계를 구명하고, 깊이별 토양 수분예측을 위한 부분최소제곱회귀(PLSR) 모델을 알고리즘을 개발하였다. 콩 재배포장의 10cm, 20cm, 30cm 깊이의 토양수분은 FDR 방식의 센서로 측정하였 고, 콩 작물 주변 환경인자(재배환경의 기온, 상대습도, 풍속, 일사량, 일조시간)는 주변의 기상관측소에서 측정된 데이터를 이용하였다. 이를 이용하여 깊이별 미래의 토양수분함량 예측 모델을 개발한 결과, 10cm와 20cm깊이에서 주요 인자는 현재 토양수분함량과 기온이었으며, 30cm 깊이에서의 주요 인자는 현재 토양수분함량과 기온, 풍속으로 나타났다. 토양 깊이가 깊어짐에 따라 토양수분함량 예측 정확도가 향상되었으며, 이는 표면에 가까울수록 토양수분함량이 변화가 크기 때문으로 예상된다. 또한 미래의 토양 수분함량예측시 1시간 후 예측 정확도가 가장 우수하였으며, 이때의 Rv 2와 RMSEV가 10cm 깊이에서 0.993와 1.069%, 20cm 깊이에서 0.994와 0.821% 였으며, 30cm 깊이에서 0.999와 0.149% 였다. 본 연구 결과는 콩 생육환경 진단을 위해 재배 포장의 토양수분함량을 토양층별로 미래의 토양수분함량도 예측이 가능함을 보여준다.

Airborne bacteria are an important environmental factor that affects the hygiene of mushroom cultivation houses, as they can act as contaminants or pathogens in mushroom cultivation. To determine the distribution of airborne bacteria in the air of wood ear mushroom cultivation houses, air sampling and temperature and humidity measurements were conducted at three wood ear mushroom farms located in Iksan and Wando in 2022. Sampled air was analyzed to measure bacterial concentration levels and identify bacterial species. There was no significant difference in temperature and humidity changes detected between the three mushroom growing houses. Additionally, the concentration of bacteria in the air did not exceed 800 CFU/m², which is the maximum amount of airborne bacteria allowed by the Ministry of Environment’s indoor air quality maintenance standards. Eleven species of bacteria belonging to 11 genera were isolated and identified from air samples. These include five species of Micrococcales, four species of Bacilli, one species of Actinomycetia, and one species of Mycobacteriales. Of the 11 species identified, five are known to affect human health. However, no mushroom pathogens or species causing food poisoning were found.

The present study was carried out to investigate the concentration and species diversity of airborne fungi in thermophilic mushroom cultivation houses. Fungal concentration measurements were performed in April and May 2022 for a Pleurotus ostreatus cultivation house, in July and August 2023 for a Pleurotus sajor-caju and Agaricus blazei cultivation house, and in June, July and August 2023 for a Pleurotus pulmonarius, Pleurotus sajor-caju and Calocybe indica cultivation house. The airborne fungal concentration was 2.95 × 102 CFU/m3~105CFU/m3, above 105CFU/m3, and 1.12 × 103 CFU/m3~ 9.17 × 103 CFU/m3 in the three cultivation houses, respectively. A total of 8 genera and 22 species of airborne fungi were isolated from three mushroom cultivation houses. 5 genera and 7 species were identified from P. ostreatus cultivation house. Furthermore, 4 genera 6 species were found from A. blazei and C. indica cultivation house. In addition, 5 genera and15 species were isolated from P. pulmonarius, P. sajor-caju and C. indica cultivation house. Among the fungi isolated, the class of Eurotiomycetes was the most common. Among the 22 fungal species, Aspergillus flavus, A. ochraceus A. sydowii, A. tubingensis, A. westerdijkiae, Penicillium brevicompactum, P. citrinum, and P. steckii have been reported as harmful species to mushrooms, food, and human.

Pepper cultivation requires a great amount of manual labor, especially for varieties needing support stakes to prevent them bending or breaking in heavy winds or rain. In Korea, it is recommended to secure support stakes and string lines carefully, so as to minimize the risk of damage caused by typhoons. The harvesting of peppers is a labor-intensive process with low rates of mechanization.The removal of stakes is particularly time-consuming during mechanical harvesting, and lodging is a major issue during cultivation and mechanical harvesting. Given increased mechanization during pepper harvesting, it is important to consider these issues when undertaking variety development and cultivation method improvements. Further research and development are required to improve cultivation practices and develop pepper varieties that are more resistant to lodging. Therefore, this study aimed to investigate the impact of different cultivation methods on pepper lodging, thus broadening our knowledge on the desirable architecture of pepper plants required for lodging tolerance.

Airborne bacteria in mushroom growing environments are a potential risk of contamination in commercial mushroom production. Controlling contamination in mushroom farms requires understanding the bacterial ecology in the cultivation environment. This study was conducted to investigate the concentration and species diversity of floating bacteria in a thermophilic mushroom cultivation room. Temperature, humidity, temperature, humidity, and bacterial concentration measurements were performed in April and May 2022 for a Pleurotus ostreatus cultivation house, in July and August 2023 for a Pleurotus sajor-caju and a Agaricus blazei cultivation house, and in June, July and August 2023 for a Pleurotus pulmonarius, Pleurotus sajor-caju and Calocybe indica cultivation house. The airborne bacterial concentration was 5.27 × 103~105 CFU/m3, 3.81 × 102 ~1.37 × 103 CFU/m3, and 2.55 × 102 ~1.37 × 102 CFU/m3 in the three cultivation houses, respectively. A total of 23 genera and 37 species of airborne bacteria were isolated from the three mushroom cultivation houses. 12 genera and 18 species were identified from P. ostreatus cultivation house. Furthermore, 4 genera and 4 species were found from A. blazei and C. indica cultivation house. In addition, 11 genera and 18 species were isolated from P. pulmonarius, P. sajor-caju and C. indica cultivation house. Among the bacteria isolated, the Bacilli class was the most common, followed by Gammaproteobacteria. Among the 37 bacterial species, it was determined that Bacillus cereus, B. licheniformis, Cedecea neteri, Exiguobacterium acetylicum and Raoultella terrigena could negatively affect humans or foodstuff. Cedecea neteri is also known to cause diseases among mushrooms.

본 연구의 목적은 󰡔황제내경(黄帝内經)󰡕에서 바라 본 정신 건강수양법을 제시하는 것이다. 이를 위해 먼저 생명과 건강 그리고 질병의 동양의학 이론적 배경을 살펴보았다. 본 연구 를 통해 얻은 결과는 염담허무는 마음의 다스림으로 기에너 지 순환을 원활하게 하여 몸의 이완을 가져오며, 진기종지는 몸의 기에너지 순환을 통한 마음의 다스림이다. 즉 호흡명상과 호흡마사지의 상호작용으로 정신내수에 이르러 병의 발생 을 미리 예방하는 것으로 분석되었다. 앞으로 본 연구결과를 토대로 자율신경 조절과 뇌파 방면의 과학적인 연구지표 검 증을 통하여 정신건강수양법을 과학적으로 증명하여 동양의 학의 우수성을 대중화할 수 있는 지속적인 후속연구가 필요 하다.