느타리 종균배지재료인 미송톱밥과 미강을 대체할 수 있는 재료를 선발하기 위하여 실시하였다. 톱밥의 pH는 4.9~6.1, 총질소함량은 0.21~0.26%, 총탄소함량은 49.0~50.2%를 나타내며 조지방은 0.3~0.7%를 함유하고 있다. 종균 혼합배지의 pH는 5.3~5.9, 총질소함량은 0.65~1.11%, 총탄소함량은 47.0~49.1%를 나타내었다. C/N율은 총질소 함량이 낮은 미루나무톱밥 혼합배지에서 높게 나타났으며, 단백질 함량은 미송톱밥이 함유되어 있는 배지에서 높게 나타났다. 느타리 균사생장은 미강보다 밀기울이 포함되어 있는 배지에서 균 사생장 속도가 빨랐다. 수량은‘곤지7호’, ‘춘추2호’, ‘흑타리’, ‘수한1호’ 순으로 높았으며, T4(미루나무톱밥:참나무톱 밥:미강) 배지에서 가장 높은 생산성을 나타내었으나 처리 간 유의성이 없었다. 느타리 농가에서는 자가종균 제조 시 주변에서 손쉽게 구할 수 있는 미루나무톱밥, 참나무톱밥을 단용 및 혼용으로 이용할 수 있으며, 보관중에 품질유지가 어려운 미강 대신에 밀기울을 사용하여 종균을 제조할 수 있을 것으로 판단된다.

To investigate the suitable growing area for Italian ryegrass (cv. Kowinearly and cv. Green-Call), we survey the different effects of climatic conditions on plant growth in the east (hereafter termed Yeongdong) and west (hereafter termed Yeongseo) of the passes in Gangwon Province. The Italian ryegrass was grown in Gangneung of Yeongdong and Wonju and Chuncheon of Yeongseo. The plants showed growth differences depending on the cultivated regions between before and after wintering. The Italian ryegrass for pre-wintering showed the relatively long length of plant height in Wonju. While, we observed the relatively tall plants for growing- and harvestingperiod after wintering in Gangneung. The increased plant height in Gangneung was closely related to all climatic conditions for the growing period and mean- and lowest-temperature for the harvesting period, respectively. The amount of dry matter was 7,490 kg/ha for Kowinearly and 6,490 kg/ha for Green-Call in Gangneung, which has a higher yield than Chuncheon and Wonju. The relative yield index of dry matter was 77% (Kowinearly) and 78% (Green-Call) in Chuncheon and 84% (Kowinearly) and 71% (Green-Call) in Wonju compared to Gangneung as the standard region. Thus, we suggest that Chuncheon and Wonju are the possible areas for cultivation of Italian ryegrass, considering that Gangneung was the optimum growing area in Gangwon Province.

This experiment was conducted to compare the seed productivity of the Italian ryegrass(Lolium multiflorum Lam.) varieties sown in the spring in Gangwon region. The experiment was randomized block design with three replications. The Experimental field was located in alpine areas of about 600 m above sea level in Gangwon province. The tested Italian Ryegrass varieties were ‘Greenfarm’, ‘Greencall’ and ‘Kowinearly’ developed by National Institute of Animal Science, RDA. Italian Ryegrass varieties were sown on March 26, 2020, and the harvest was on the 60th day of mean heading date, July 2. The heading date of Kowinearly was May 8, but Greenfarm and Greencall was May 4. The plant length was the largest in the Kowinearly variety. However, the Kowinearly suffered severe lodging. There was no significant difference in the length of spike among varieties, and the number of seeds per spike was the lowest in Greenfarm at 118.5 seed/spike. As for the seed weight per spike, the Greenfarm variety was significantly lower at 0.56 g/spike, but the 1,000 seed weight was the heaviest in the Greenfarm at 2.5g.. The number of spike per unit area was the highest in Greenfarm at 906/m2. The dry matter content of seeds was the highest in Greenfarm at 54.3%, and for straw, Kowinearly was the highest at 35.3%. Seed productivity was not significant among varieties, and the average was 1,493 kg/ha. The yield of straw after seed production was also not significant among varieties (P>0.05), and the average was 3,172 kg/ha. From the above results, the production of Italian ryegrass seeds through spring sowing in the Gangwon region is not much than autumn seeding, requiring the input of various technologies to increase productivity in the future, and it is desirable to determine the production cost through economic analysis was judged.

이 연구는 번식방법과 재배시스템별 딸기 ‘설향’ 품종의 생산성을 조사하기 위하여 수행되었다. 삽목법과 유인법으로 번식된 이식묘를 토경과 수경재배 시스템에서 진주의 딸기 재배농가에서 2018년 9월12일부터 한 작기 동안 재배하였다. 과실 수확은 2018년 12월 20일에 시작하여 작기가 끝날 때까지 4-5일 간격으로 계속하였다. 전 수확기간 동안 생육, 과실 생산성 및 품질을 측정하였다. 번식방법이 크라운 직경, 엽장 및 엽폭에 유의미한 영향을 미쳤다. 재배시스템은 크라운 직경, 엽장, 엽폭, 엽록소 함량 및 엽수에 상당한 영향을 주었다. 전 수확기간 동안 포기 당 총 과실 수량과 과실 당 평균 과중은 토경재배 시스템에서 유의미하게 낮았다. 시장성이 없는 총 과일 비율은 수경재배 보다 토경재배 시스템에서 현저하게 더 높았다. 시장성이 없는 과일 토경에서는 주로 작은 과일인데 인데 반해 수경재배에서는 주로 기형 과일이었다. 전반적인 고품질 과실은 2월에 수확되었고, 수경재배 시스템에서 토경에 비해 과실의 품질이 더 높았다. 삽목번식이 유인번식 보다 더 좋았고, ‘설향’의 과실 생산성을 높이기 위해서는 수경재배가 토경재배 보다 더 우수하다는 결론을 얻었다.

수출용 스프레이 장미 신품종을 육성하기 위해 경남농업기술원 화훼연구소에서 2012년 분홍색 스프레이 장미 ‘Pink Sensation’을 모본으로, 오렌지색 스프레이 장미 ‘Orange Jam’ 을 부분으로 하여 잿빛곰팡이병 민감성이 약하고 수송성과 생산성이 좋은 황색 스프레이 장미 ‘Egg Tart’를 육성하였다(품종보호 제7791호). ‘Egg Tart’의 화형은 불규칙한 원형이고, 잎색은 짙은 녹색으로 광택이 강하였으며, 잎 수는 15매, 잎의 길이는 12.3cm로 대조품종 ‘Yellow Tea’에 비해 작았다. 잎의 형태적인 면에서 대조품종과 뚜렷한 차이를 보였는데 ‘Egg Tart’는 소엽 가장자리의 물결모양이 크지 않고 정단부 소엽이 좁은 타원형이었으며, 특히 정부의 모양은 매우 뾰족한 형태를 보였다. ‘Egg Tart’의 절화수량은 152본(㎡/년), 절화장은 78cm, 꽃잎수는 78.8매, 절화수명은 14.4일로 길어 스프레이 절화장미로서 대조품종 ‘Yellow Tea’보다 우수하였다. ‘Egg Tart’의 수출품종으로서 가능성을 확인하기 위해 같은 황색 품종인 ‘Yellow Babe’와 함께 장미 수출업체 재배온실에서 2017 년부터 3년간 실증재배를 하였고 생산된 절화는 내수시장과 일본 수출 시장에 출하하였다. 시험 결과 절화수량과 소화수는 두 품종간 차이가 없었으나 절화길이와 꽃 직경의 크기는 ‘Egg Tart’가 컸으며, 시장 가격도 내수시장과 일본 시장이 각각 송이당 845원, 758원으로 ‘Yellow Babe’ 보다 높았다. ‘Egg Tart’의 잿빛곰팡이병에 대한 민감성을 확인하기 위해 인위적으로 잿빛곰팡이병 균주를 접종하여 병 발생 및 확산 정도를 조사한 결과 대조품종인 ‘Yellow Babe’는 병원균 접종 후 1일 부터 감염이 되었으나 ‘Egg Tart’는 2일부터 감염되었고, 접종 후 4일에 ‘Yellow Babe’는 100% 감염되었지만, ‘Egg Tart’는 38.9%로 대조품종에 비해 상대적으로 감염이 적고 확산 속도도 느렸다. 이상의 결과를 종합해볼 때 황색 스프레이 장미 ‘Egg Tart’는 기존 수출품종 ‘Yellow Babe’를 대체 가능한 품종으로 판단된다.

This study was conducted at the National Institute of Animal Science from 2010 to 2017. As a variety that is sufficiently productive in the southern regions to replace imported varieties and sufficiently cold-resistant to be cultivated in the central-northern regions, "IR605" was developed and submitted to the Korea Seed & Variety Service in an application for protection. The novel Italian ryegrass variety "IR605" is a diploid with green leaves, a semi-erect growth habit before wintering, and an erect growth habit in the spring. "IR605" was a medium maturing variety with a heading date of around May 15th. "IR605" had a flag leaf width of 9.9 mm, flag leaf length of 26.7 cm, and plant length on the heading date of 100 cm, which was approximately 5 cm longer than "Kowinearly." The stem thickness and ear length of "IR605" are 0.08 mm thicker and 0.5 cm longer than those of "Kowinearly", respectively. The cold-resistance of "IR605" was weaker than that of "Kowinearly", but strong enough to be cultivated in Pyeongchang, Gangwon province. The dry matter yield of "IR605" (9,308 kg/hectare) was 20% higher than that of "Kowinearly", which was further pronounced in the southern region of Haenam, where there was a 52% increased (p < 0.05). The in vitro dry matter digestibility of "IR605" was 68.4% at which was slightly higher than that of "Kowinearly", The total digestible nutrients was 58.5%, which was slightly lower than "Kowinearly". Overall, the feed quality characteristics of "IR605" were similar to those of "Kowinearly".

These experiments were to investigate the variations of rye on forage quality, productivity and β-carotene concentration affected by maturity in Pyeongchang region. Limited information are available about how forage quality and β-carotene content are affected by various factors. Samples were collected from rye harvested every 5 days, from April 25 to May 31 (April 25, April 30, May 4, May 9, May 15, May 21, May 25 and May 31). Dry matter (DM) content, plant height, DM yield and total digestible nutrient (TDN) yield increased continuously with the progressed maturity. However, crude protein (CP) content, in vitro dry matter digestibility (IVDMD) and relative feed value (RFV) decreased markedly with the delay of harvesting, while TDN content decreased from April 25 till May 15, then followed by a stable fluctuation. Conversely, acid detergent fiber (ADF) and neutral detergent fiber (NDF) value increased and then fluctuated slightly after blooming stage. For quality of plant parts, stem contained the lowest CP content and RFV value, and the highest ADF and NDF contents compared with other parts, while the grain showed the higher CP, IVDMD, RFV and lower fiber contents than others. With the plant matured, leaf proportion decreased while stem and grain proportion increased, and feed value of all the three parts decreased till blooming stage and followed by a stable phase. β-carotene concentration showed its highest on jointing stage, and then fell down sharply on the sequential stages. In conclusion, harvest around May 15 (blooming) is proper for forage rye if directly consumed by livestock as green chop in Pyeongchang under the consideration of both nutritive yield and forage quality.

본 연구는 우간다 낙농업에 종사하는 197 농가를 대상으로 낙농 생산성 향상을 위해 선호하는 ODA 사업이 무엇인지를 파악하였다. 최고-최저 조정법(Best-Worst Scaling, BWS)을 이용하여 낙농분야 ODA 사업에 대한 우선순위를 결정하였다. 7개 항목 중 1순위와 2순위는 각각 『젖소개량』과『가축질병 관리』로 전체 효용에서 차지하는 1순위와 2순위의 효용은 각각 48.5%와 21.7%로 나타났다. 우리나라의 선진 기술과 지식을 활용하여 농가 선호도가 높은『젖소개량』과『가축질 병 관리』는 낙농분야 ODA 사업으로 실행할 가치가 있다. 본 연구는 ODA 사업 계획 수립에 필요한 기초적인 정보를 제공 하며 정량적 우선순위 결과를 고려한 우간다의 낙농분야 ODA 사업은 효율적으로 현지 주민 만족도 및 낙농 생산성 향상에 기여할 것이다.

The purpose of this study was to explore how consumer traits(technology anxiety and need for interaction) explain attitude toward self-service technologies in fashion retail stores. We examined if technology anxiety influences perceived productivity and attitude toward self-service technologies, and if so, how the need for interaction with employees moderates the impact of technology anxiety on perceived productivity and attitude. For the purpose of the study, a web-based survey with Korean consumers was conducted. The final sample size was 214. Structural Equation Modeling Analysis and PROCESS in SPSS were employed to test the proposed hypotheses. The findings indicated that technology anxiety negatively affected perceived productivity and attitude toward self-service technologies in which perceived productivity affected attitude positively. Need for interaction with employees was found to moderate the relationship between technology anxiety and perceived productivity. It also moderated the relationship between technology anxiety and attitude. This study contributes to the self-service technology literature by identifying two antecedents of consumer attitude toward selfservice technologies: technology anxiety and the need for interaction. The findings further provide valuable insights to retailers and marketers as to how technology anxiety, perceived productivity, and the need for interaction work in enhancing consumer attitude toward self-service technologies in the context of fashion retail.

When a radial collector well is installed and operated for agricultural purposes, negative impacts may be observed over time due to the clogging of horizontal arms, such as reduced groundwater discharge and water quality deterioration. When radial collector well No. 2 was rehabilitated using the high-pressure impulse generation technique, the specific capacity and transmissivity were increased by 43.1 and 100.6%, respectively. In contrast, according to air surging, the specific capacity and transmissivity increased by 33.8 and 85.8%, respectively, compared to the initial rate before rehabilitation. During the operation of radial collector wells since construction, the time of well rehabilitation can be effectively determined by continuously monitoring the groundwater level and pumping rate of the radial collector wells, thereby preventing a decrease in productivity.

본 연구는 국내에 자생하는 약용식물인 개똥쑥을 배지 재료로 활용하여 느타리 재배를 위한 적정 혼합비율을 설 정하였다. 개똥쑥의 첨가량에 따른 균사생육과 균사밀도를 조사한 결과 균사생육은 배양 23일 후 개똥쑥 5% 첨 가된 배지에서 12.7 cm였고, 대조구인 포플러톱밥+미강 (8:2)배지에서는 12.5 cm로 개똥쑥 첨가배지와 균사생육이 거의 비슷하였다. 그러나 개똥쑥 첨가량이 증가할수록 대조구 보다 균사생육이 느렸으며, 개똥쑥 70%에서는 2.1 cm로 거의 생육하지 못하였다. 개똥쑥 첨가량에 따른 균사밀도는 처리간에 뚜렷한 차이가 없이 높은 밀도를 보였다. 개똥쑥의 첨가량에 따른 느타리 자실체 특성을 조사한 결과 갓의 직경은 대조구보다 개똥쑥 첨가에서 높았지만, 갓의 두께는 대조구에서 조금 높았다. 대의 두께는 개똥쑥 15% 첨가에서 가장 높았고, 대의 길이는 개똥쑥 10%에서 가장 높았지만 대조구보다는 낮은 경향을 보였다. 수확기 자실체의 갓과 대의 색도를 측정한 결과 대의 L값은 개똥쑥 10%에서 가장 높았고, 갓의 L값은 개똥쑥 5%에서 가장 높은 경향을 보였고, a, b값은 처리간에 뚜렷한 차이가 없었다. 자실체 수량은 대조구가 119 g/850 ml였고, 개똥쑥 5%에서 122 g/850 ml으로 가장 높았고, 개똥쑥 첨가량이 증가할수록 수량은 감소되었다.

This study was conducted to figure out the productivity of Italian ryegrass(IRG) and leaching water characteristics based on horse manure compost level in Jeju. This study was conducted for about six months. Six treatments were established : non-fertilizer(NF), chemical fertilizer 100%(CF), horse manure compost 50% and chemical fertilizer 50% combination(Combination), horse manure compost with 50% of nitrogen (50%), 100% of nitrogen(100%), 150% of nitrogen(150%). The highest amount of dry matter yield of IRG was revealed in CF(11,965± 564 kg/ha), and both 150% and Combination were second(p<0.05). Nitrate leaching tended to increase until the third analysis and then decreased. There were not significantly differences among mean nitrate concentrations. The findings of the study suggest that horse manure compost with 50% of nitrogen be applied for IRG as basal fertilization and then 50% of chemical fertilizer be applied as top fertilization.