• 한국산림과학회지
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• 제111권4호
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• pp.557-566
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• 2022

본 연구는 감나무 '고동시'의 안정적인 고품질 과실 생산과 효율적인 재배관리를 위한 기초자료를 확보하기 위해 수행되었다. 전정 2년 차의 평균 본당 착과수는 결과모지수 300개, 400개, 500개 처리구 및 700개(대조구)가 각각 676.3개, 786.0개, 866.7개, 1,238.7개로 나타났다. 감나무 '고동시'는 전정강도가 강해질수록 평균 본당 착과수가 감소하였고, 평균 과중은 유의적으로 증가하였다. 특히, 평균 과중은 결과모지수 300개 처리구에서 212.2 g으로 대조구 대비 1.5배 높았다. 고품질 곶감 가공을 위한 L(170 g<ｘ≤200 g) 등급 이상의 과실의 비율은 결과모지수 300개, 400개, 500개 처리구 및 대조구에서 각각 86.9%, 48.6%, 33.5%, 8.1%로 나타났고, 전정처리구가 대조구에 비해 높았다. 곶감 판매가격을 기준으로 본당 생산액은 결과모지수 300개 처리구와 대조구가 유의적으로 높게 나타났다. 착과수가 많을 경우, 곶감 품질은 낮고 수확 및 가공 작업에 소요되는 인건비가 증가한다. 결론적으로 감나무 '고동시'의 과실품질(과중, 등급)을 높이기 위해서는 전정처리가 필수적이며, 전정 시 결과모지수를 300개 내외로 조절하는 것이 적합할 것으로 판단된다.

• 한국환경농학회지
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• 제33권1호
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• pp.57-62
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• 2014

BACKGROUND: Defoliation in grapevine cultivation is practically used to improve light environment within the canopy and thereby fruit quality. Effects of defoliation in five-year-old 'Pione' grapevine during cultivation with heating were investigated to find out optimum ratio of leaf area to fruit cluster weight (L/F). METHODS AND RESULTS: The grapevines were defoliated with berry-thinning 20 days after full bloom to provide various levels of L/F. At harvest, total leaf area values of fruit bearing branches were between 0.23 and $0.60m^2$. With increasing L/F, soluble solids and anthocyanin contents curvilinearly increased ($R^2=0.76^{**}$). At L/F over $0.6m^2/kg$, soluble solids content (SSC) leveled off. With increasing L/F, titratable acidity (TA) linearly decreased ($R^2=0.87^{**}$), but the ratio of SSC to TA linearly increased ($R^2=0.86^{**}$). Anthocyanin content was significantly correlated with SSC and the ratio of SSC to TA ($R^2=0.80^{**}$ and $0.82^{**}$, respectively). When total leaf area per fruit bearing branch was maintained $0.40m^2$, soluble solids and anthocyanin contents linearly decreased ($R^2=0.79^{**}$ and $0.85^{**}$, respectively), but TA linearly increased with increasing fruit cluster weight ($R^2=0.70^{**}$). Fruit was low in quality when the L/F was below $0.6m^2/kg$. CONCLUSION: L/F is recommended to be maintained at least $0.6m^2/kg$ in 'Pione' grapevine during cultivation with heating to produce higher-quality fruits.

• 한국식품영양학회지
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• 제20권3호
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• pp.276-281
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• 2007

Oddi is a mulberry fruit that has anti-inflammatory and antioxidative effects. This study was carried out to investigate the quality characteristics of mulberry fruit wines manufactured by two different methods. Where they were processed according to the traditional Korean fruit wine methodology(A) or a modified(B). Sensory qualities, physiochemical characteristics, and biochemical activities of the Oddi wines were analyzed. From the results of the sensory evaluation, manufacturing method A showed higher acceptability. However, the two different methods was not significantly different overall. The method A wine had higher brightness(L)(77.65) redness(a), and yellowness(b). As for the antioxidant activities and ACE(angiotensin-converting enzyme) inhibitory abilities of the wines manufacturing method A had greater values.

• 생물환경조절학회지
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• 제15권4호
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• pp.358-363
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• 2006

대목의 종류가 참외의 생장, 비대 및 품질에 미치는 영향을 검토한 결과는 다음과 같다. 참외 지상부의 생육은 자근묘에 비하여 접목묘에서 생육이 빨랐으며, 접목묘 중에서는 홍토좌 보다는 엘리트, 신토좌에서 우수하였으며, 초장, 엽수 등 생육은 정식 30일 후부터 급격한 신장을 보였다. 과장과 과폭의 비대속도는 대목종류간에는 큰 차이가 없었다. 과실의 품질을 조사한 결과 자근묘에 비하여 세력이 강한 엘리트, 신토좌접목묘에서 과중은 무거웠으나, 당토는 엘리트 접목묘 $12.5^{\circ}Brix$에 비하여 자근묘에서 $1.4^{\circ}Brix$ 더 높았다.

• 농업과학연구
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• 제49권2호
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• pp.341-355
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• 2022

This research was to examine the differences in post-harvest quality of melons depending on the harvest time after fruit setting. Musk melon cultivar 'K3' plants were grown in glass house conditions with a hydroponic system, and the fruits were harvested at 50, 60, and 70 days after fruit setting. The post-harvest characteristics of melons stored at 7℃ were measured over 32 days. The harvested fruits at 50, 60, 70 days after fruit setting did not differ significantly in weight, height, or size. Solid sugar content was highest in the fruits harvested at 70 days after fruit setting, but firmness, L* value, and respiration rate were highest in the fruits harvested at 50 days after fruit setting. When the harvested melons were stored at 7℃, 'K3' melons responded differently according to the harvest days after fruit setting. The major changes during storage of 'K3' melons can be summarized as follows: Firmness, respiration, moisture content, and general appearance index during storage were highest in the melons harvested at 50 days after fruit setting, but soluble solid content, fresh weight loss, and sensory evaluation were high in the melons harvested at 60 and 70 days after one. During storage at 7℃, there were no significant differences in the appearance of 'K3' melons harvested at different periods after fruit setting, but difference in soluble solid content and taste were noted. It is recommended that the fruit of 'K3' melon plants be harvested about 60 days after fruiting to provide consumers with the highest quality for taste and for storage.

• Horticulture, Environment, and Biotechnology : HEB
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• 제59권6호
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• pp.847-856
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• 2018

This research aimed to evaluate the effectiveness of hot water ($43-53^{\circ}C{\cdot}5min^{-1}$; $47^{\circ}C{\cdot}2-6min^{-1}$), 1-methylcyclopropene (1-MCP) at $50-300nL\;L^{-1}$ and a combination of hot water ($47/49^{\circ}C{\cdot}5min^{-1}$) and phosphite $40%\;P_2O_5+20%\;K_2O$;$40%\;P_2O_5+10%\;Zn$) in anthracnose control and the effect on fruit quality [fresh weight loss (FWL-%); pH, total soluble solids ($TSS-^{\circ}Brix$), and titratable acidity (TA = % citric acid (CA)] of passion fruit ( Passiflora edulis f. flavicarpa ) at the postharvest stage. When the fruits were in the stage of 0% dehydration and fully yellow peels, they were disinfested and inoculated with Colletotrichum gloeosporioides. They were then subjected to the above mentioned treatments; this was followed by incubation for 120 h. The diameter of the disease lesions was monitored daily. After the incubation, a physico-chemical analysis was performed. Hot-water treatment resulted in disease reduction at 47 and $49^{\circ}C$ for 4 and 5 min. The combination of hot-water treatment at $47^{\circ}C$ (4 or 5 min) and application of the phosphite of K or Zn significantly reduced disease severity in fruits. The 1-MCP treatment reduced anthracnose severity in passion fruit mainly at $200nL\;L^{-1}{\cdot} 24h^{-1} $. None of the treatments significantly changed the physico-chemical characteristics of the fruit [FWL (2.6-4.1%); pH (3.2-3.5), TSS ($8.9-10.9^{\circ}Brix$), and TA (1.8-2.5% CA)].

• 생물환경조절학회지
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• 제23권3호
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• pp.256-261
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• 2014

본 연구는 참다래 비가림 시설재배에서 인공수분이 착과 및 과실품질에 미치는 영향과 안정적인 착과를 위한 유효수분기간을 확인하고자 수행하였다. 또한 최근 참다래 재배농가들에서 많이 수행되고 있는 현탁액을 이용한 인공수분의 효과를 확인하고자 하였다. 인공수분은 비가림 시설재배에서뿐 아니라 노지재배에서도 참다래의 착과량이 개선되었으며 중량증가와 당도향상의 과실품질 개선효과가 확인되었다. 유효수분기간 확인을 위하여 만개 후부터 매일 7일간 인공수분이 수행되었다. 과실의 착과율, 과실당 종자수, 그리고 과실생장량은 만개 후 4일까지 차이가 나타나지 않았으나 만개 후 5일부터는 분명하게 감소하였다. 결과적으로 참다래 비가림 시설재배에서 유효수분기간은 만개 후 4일 이내로 나타났다. 또한, 현탁액을 이용한 인공수분은 석송자를 이용한 것과 착과량과 과실품질의 차이를 나타내지 않았다. 따라서, 화분 현탁액을 이용한 인공수분은 참다래 재배에서 노동력을 절감할 수 있는 매우 효율적인 수분방법이 될 수 있을 것이다.

• 농업과학연구
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• 제44권1호
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• pp.23-29
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• 2017

This study was conducted to explore which pollen type could be an effective pollen source for self-incompatible 'Niitaka' pear (Pyrus pyrifolia Nakai), when different pollinizers were to be applied. The pollens of five different pears with similar flowering times were applied to bagged 'Niitaka' flowers grown in Cheonan city, Korea. Pollen types used were of different origins including Korean pears ('Wonhwang' and 'Chuhwangbae'), Japanese pears ('Chojuuro' and 'Okusankichi'), and Chinese pear ('Yali'). Results show that the amount of pollen produced by flowers of each cultivar was the largest in Korean pear 'Wonhwang' (234 g/100 flowers) and the smallest in Japanese pear 'Okusankichi' (126 g/100 flowers). A high proportion of large fruits (> 600 g), 71.4% of total production, was found in the fruits treated with 'Yali' pollen. However, these fruits showed an unfavorable external appearance. Based on individual fruit width differences, 'Chojuuro' treatment produced the smallest difference in fruit diameters (3.2 mm) and 'Yali' treatment' gave the largest (4.8 mm). Also, the difference in fruit length was the largest in 'Yali' (7.5 mm), which also produced the most uneven fruits among the pollinizers used. Meanwhile, the use of pollens of 'Wonhwang' and 'Chuhwangbae' improved productivity by increasing the fruit shape index and the ratio of bigger fruits in total production. Moreover, those pollens also decreased the development of lenticels on fruit skins which gave them a smoother appearance.

• 농업과학연구
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• 제37권2호
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• pp.249-254
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• 2010

This study was carried out to investigate the quality characteristics of bread containing mulberry fruit powder(0, 3, 6 and 9%, w/w). For color values, L, a and b values decreased with increasing the amount of mulberry fruit powder. In texture, increasing the amount of mulberry fruit powder resulted in hardness and chewiness to increase, while springiness and cohesiveness was decreased. Dough volume of bread containing mulberry fruit powder was reduced and specific loaf volume was also decreased with increasing the amount of mulberry powder. With addition of 6% mulberry powder to the bread, overall sensory score showed the highest rating, while it was minimum with 9% addition. In conclusion, it could be expected that a range of mulberry fruit breads can be developed, with good sensory properties.

• 원예과학기술지
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• 제19권2호
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• pp.145-148
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• 2001

감귤의 품질에 미치는 CA 저장의 효과를 알아보기 위하여 본 실험을 수행하였다. 1998년 11월 제주도에서 수확된 온주밀감을 공시재료로 사용하였다. 무게감량과 경도는 저온저장구보다 CA 처리에서 저장기간 동안 높게 유지되었고 SSC 값은 저온저장 2개월까지 뚜렷이 증가하다가 그 이후 급격하게 감소한 반면 CA 처리에서는 저장 4개월까지 지속적으로 증가하는 양상을 나타내었다. 유기산은 CA 처리에서 저온저장에서 보다 약간 높게 유지되는 형태로 저장 중 모든 처리에서 크게 감소하였다. 시장성 판정을 위한 품질평가 결과에서도 CA 조건이 저온저장에 비하여 품질유지에 비교적 효과적이었다.