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보온부직포 무게가 참외의 생육, 품질 및 수량에 미치는 영향
신용습,김주환,김병수,연일권,박소득 (사) 한국생물환경조절학회 2005 생물환경조절학회지 Vol.14 No.2
참외 무가온 재배 시 보온부직포 무게별 참외의 생육, 품질 및 수량에 미치는 영향을 검토하기 위하여 신토좌 대목에 금싸라기은천을 접목하여 정식 전부터 6온스, 12온스, 15온스 처리구와 대조구인 9온스를 4월 20일까지 덮어서 재배한 결과는 다음과 같다. 보온력이 높을수록 터널내 야간 기온이 높았는데, 6온스 4.8oC, 9온스 6.9oC, 12온스 7.9oC 그리고 15온스는 8.0oC로 12온스와 15온스간에는 큰 차이는 없었다. 보온력이 높을수록 초장, 경경, 엽수, 엽면적, 생체중 및 건물중 등 정식 30일 후의 초기생육이 빨랐는데 특히 엽면적은 대조구인 9온스의 370cm2에 비하여 12온스에서는 116%, 15온스에서는 129% 였다. 정식 30일 후 일비액량은 9온스의 10.1mg에 비하여 12온스는 1.2배, 15온스는 1.9배 많았다. 9온스에서는 정식 47일 후 암꽃이 개화되었으나 15온스 및 12온스에서는 6일 빨랐으나 6온스에서는 3일 늦었고 첫 수확은 12 및 15온스에서 각각 3일, 4일 단축되었으나 6온스에서는 3일 늦었다. 평균과중, 과장, 과폭, 과육두께 및 당도는 15온스에서 가장 좋았고 12온스, 9온스, 6온스의 순이었다. 10a당 총수량은 15온스에서 가장 많았고 12온스, 9온스, 6온스의 순이었고, 발효과는 6온스에서 가장 많았고 9온스, 12온스, 15온스의 순이었고, 상품과율은 15온스에서 가장 많았고 12온스, 9온스, 6온스의 순이었다. This study was conducted to investigate the effect of nonwoven fabrics weight(Ounce) on growth, quality and yield of oriental melon (Cucumis melo L. var. makwa Mak.). Seedling of Gumssaragi-Eunchun was grafted on Shinthozoa root stock. In this study, The minimum air temperature in 6 ounce at night was 4.8oC, 6.9oC in 9 ounce, 7.9oC in 12 ounce and 8.0oC in 15 ounce, respectively. Leaf length, stem diameter, leaf numbers, leaf area, fresh weight and dry weight for 30days after planting were better in high minimum air temperature at night than in low minimum air temperature, particularly leaf areas of the plant in 9 ounce was 370cm2 at 30days after planting, 116% in 12 ounce, 129% in 15 ounce. The xylem exudates amount in 9 ounce for 24hours just after basal stem abscission was 10.1mg. It was 1.2 times much in 12 ounce and 1.9 times much in 15 ounce than in 9 ounce at 30days after planting. The blooming of female was faster by 6 days in 15 and 12 ounce but was delayed by 3 days in 6 ounce than 9 ounce, and the days of blooming to harvesting were shorter by 3days in 15 ounce and 4days in 12 ounce but was delayed by 3days in 6 ounce than in 9 ounce. Fruit weight, fruit length, fruit diameter, flesh thickness, soluble solids, and total yield was the highest in 15 ounce followed by 12 ounce, 9 ounce and 6 ounce. Fermented fruit rate was the highest in 6 ounce followed by 9 ounce, 12 ounce and 15 ounce, and marketable fruit rates were 15, 12, 9 and 6 ounce in order. Compared to 1,781kg yield per 10a of 9 ounce, 19% and 49% was increased under 12 ounce and 15 ounce but 47% were decreased 6 ounce.
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신용습,연일권,배수곤,최성국,최부술 (사) 한국생물환경조절학회 2001 생물환경조절학회지 Vol.10 No.1
This experiment was conducted to investigate the effect of air circulation and forced ventilation ofgreenhouse on the development of fermented fruits in an oriental melon. An air circulation systemand a forced ventilation system were operated during 09:30 17:00 at a 15 min. interval from Apr. 6, 5days after fruit setting, to Jun. 29, everyday except rainy days. Wind velocities in the greenhouse were0.06 0.08, 0.24 0.32, and 0.60 0.72 m s-1 in the naturally ventilated (control), in the air circulated, andin the forced ventilated treatment, respectively. No significant difference in plant growth parameters,including leaf length and width, were observed between treatments. However, the amount of xylemexudate increased in the air circulated treatment as compared to the control. Percent of fermentedfruits significantly decreased in the air circulated treatment as compared to the control. The forcedventilation treatment showed no significant difference in percent of fermented fruits as compared tothe control or to the air circulated treatment.
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신용습,이문중,이은숙,안준형,도한우,최돈우,정종도,이지은,김민기,박종욱,엄영철,박소득,채장희 한국유기농업학회 2013 韓國有機農業學會誌 Vol.21 No.4
The objective of this study was carried out to elucidate the effect of LEDs (light emitting diodes) irradiation in relation to early growth and inorganic elements in leaf lettuce (Lactuca sativa L. ‘Chung Chi Ma’). In morphological changes of leaves, shoot elongation and hypocotyl length showed poor growth in red light irradiation, while the red+blue light irradiation induced shorter plant height and much greater leaf numbers resulting in increased fresh weight. In change of the Hunter's color and SPAD values, lettuce seedlings grown under in red+blue and fluorescent light irradiation had a higher a* value, otherwise SPAD values were not changed in these light irradiations. Interestingly, relative chlorophyll contents showed 1.8 times increased redness in the treatment of red+blue light irradiation. Inorganic element (N, Ca, Mg, Mn, and Fe) and ascorbic acid contents were increased in lettuce plants grown under LEDs light irradiation compared to those of lettuce grown under the fluorescent light which showed higher P and Mn contents. In conclusion, it is considered that red+blue light irradiation which stimulates growth and higher nutrient uptake in leaf lettuce could be employed in containers equipped with LEDs.
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봉지종류 및 제거시기가 참외의 당도 및 색도에 미치는 영향
신용습,최충돈,최성용,이지은,연일권,도한우,정종도,강찬구 (사) 한국생물환경조절학회 2008 생물환경조절학회지 Vol.17 No.2
참외를 껍질째 먹기 위하여 착과 5일후부터 과실에 배, 사과, 포도봉지를 씌워 재배한 결과, 봉지내의 온도는 외기온에 비하여 주간에는 낮고 야간에는 높았으며 습도는 주간에는 높고 야간에는 낮았다. 무처리구에 비하여 봉지재배로 과장은 짧고 과폭은 좁고 과육두께는 얇고 과중은 가벼운 경향이었으나 처리간 차이는 없었다. 과육 및 태좌부의 당도는 봉지재배 처리구에서 낮은 경향이었으나 처리간 차이는 없었다. 그러나 과실의 당도는 봉지제거 직후 보다는 봉지제거 5일후 조사에서 높아지는 것을 알 수 있었다. 봉지재배로 과피의 경도 및 색도가 낮았다. 이와 같이 봉지재배로 과피의 경도가 낮아 껍질째 먹기는 쉬워졌으나 과피의 색도 및 당도가 낮아 금후 보완이 필요한 것으로 생각된다. This experiment was conducted to make eatable fruit of oriental melon with peel, we covered oriental melon fruit with pear, apple and grape paper bag. Temperature inside paper bags was lower than air temperature in daytime but reversed in night. Relative humidity inside paper bags was higher than outside humidity in daytime but reversed in night. Covering with paper bags seemed to make fruit length shorter, fruit width narrower, flesh thickness thinner and fruit weight heavier but no difference was found among treatments. Soluble solid contents of flesh and placenta seemed lower with covering with paper bags but also difference did not find among treatments. Increasing of soluble solid contents of fruits was observed at 5 days after removing paper bags but not immediately at removing paper bags. Fruit hardness and chromaticity were dropped by covering paper bags. Decrease of fruit hardness by covering paper bags made more eatable with peel but more study have to be taken to improve chromaticity and soluble solid of fruits.
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