• Title/Summary/Keyword: Cucumis melo L. var. makuwa

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Soil EC and Yield and Quality of Oriental Melon (Cucumis melo L. var. makuwa Mak.) as affected by Fertigation (참외의 관비재배가 토양 EC, 참외의 수량 및 품질에 미치는 영향)

  • Jun, Ha Joon;Shin, Yong Seup;Suh, Jun Kyu
    • Journal of Bio-Environment Control
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    • v.21 no.3
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    • pp.186-191
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    • 2012
  • Experiments were conducted to investigate the effect of fertigation (fertilizer-added irrigation) on soil EC (electrical conductivity), nitrogen and calcium content in soil, vine growth and fruit yield of oriental melon (Cucumis melo L. var. makuwa Mak.). Soil EC was increased with the frequency of fertigation (Yamazaki's solution for melon, 900 L/1,000 plants, each time) up to $0.8dS{\cdot}m^{-1}$ as compared to that of conventional irrigation ($0.2dS{\cdot}m^{-1}$). Ca content in soil also increased in fertigation fields. Vine dry weigh (20 days after planting) was significantly increased in fertigation plot. Markedly increases in marketable fruit yield and lower rate of off-shape fruit were recorded with the increase in fertigation frequency. Mean fruit weight and soluble solids contents ($^0Brix$) in fruit were not affected by fertigation. Fresh weight loss during storage was significantly higher in fruits harvested from 2 times fertigation (09:00 and 18:00) plot than conventional irrigation and the 1 time fertigation ones.

Effect of Fruit Thinning and Foliar Fertilization under the Low Light Intensity in Oriental Melon(Cucumis melo L. var. makuwa MAKINO) (저광도 조건시 참외의 적과와 엽면시비 효과)

  • 서태철;강용구;윤형권;김영철;서효덕;이상규
    • Journal of Bio-Environment Control
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    • v.12 no.1
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    • pp.17-21
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    • 2003
  • This experiment was conducted to find out the method of preventing decrease in the marketable yield of oriental melon (Cucumis melo L. var. makuwa MAKINO) under low light intensity. By maintaining low light of 400 $\mu$mol$.$m$^{[-10]}$ 2$.$S$^{-1}$ from 10 days after fruit set to fruit enlargement period, the photosynthetic rate and chlorophyll contents of leaf were reduced. Leaves which had no urea application showed largely decreased photosynthetic rate The content of soluble solids was lower$.$ in the low light than natural light treatment. Regardless of foliar application of urea, % fermentation fruits was under 4% in the natural light treatment and over 10% in the low light treatment. The less the fruit thinning, the greater was % fermentation fruits under low light condition. The % fermentation fruits were 39% and 40% in no fruit thinning treatment. The harvest was delayed under low light condition regardless of foliar fertilization. As the number of thinned fruits was decreased, the harvest time was delayed more. Marketable yield per plant sharply decreased under low light intensity. Compared with natural light, the yield under low light treatment was 16∼34%. The treatment fertilized with 0.5% urea on leaf had 34% greater harvest index of marketable yield than other treatments. In conclusion, when the long low light condition from 10th day after fruiting was forecasted, thinning two fruits out of six fruits and two times foliar fertilization with 0.5% urea should be applied.

Influences of Meteorological Conditions of Harvest Time on Water-Soluble Vitamin Contents and Quality Attributes of Oriental Melon (수확기 기상환경이 참외의 수용성비타민 함량 및 품질에 미치는 영향)

  • Kim, Hye-Suk;Jung, Ji-Yun;Kim, Hye-Kyung;Ku, Kang-Mo;Suh, Jun-Kyu;Park, You-Mie;Kang, Young-Hwa
    • Journal of Bio-Environment Control
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    • v.20 no.4
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    • pp.290-296
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    • 2011
  • In our study, oriental melon (Cucumis melo L. var makuwa Makino) was harvested in Seongju at major harvest time from June to August with the intervals of one month in 2009. In order to elucidate the effect of meteorological condition of harvest time on fruit quality and water-soluble vitamin contents of oriental melon, quality attributes including weight, hardness, and sugar were examined and water-soluble vitamin contents such as folic acid and vitamin C were analyzed. Fruit quality factors and water-soluble vitamin contents were the highest in June when rainfall was low and solar radiation was high. Meanwhile, both of them were the lowest in July when it was the worst weather condition for cultivation of oriental melon. After then, the contents of folic acid and vitamin C increased when the rainfall had decreased in Aug. The contents of both vitamins were much high in placenta than peel and flesh. In conclusion, the meteorological condition of the summer season by torrential rains and lack of solar radiation influence water-soluble vitamin contents, especially folic acid contents of oriental melon as well as quality attributes such as hardness and sugar.

Oviposition and Feeding Preference of the Cotton caterpillar, Palpita indica(Lepidoptera: Pyralidae), in Cucurbitaceae (박과류에서 목화바둑명나방(Palpita indica)의 산란 및 식이선호성)

  • 최동칠;노재종;최광렬
    • Korean journal of applied entomology
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    • v.42 no.2
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    • pp.119-124
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    • 2003
  • The adult of the Cotton caterpillar, Palpita indica (Saunder) laid eggs more on mature leaves than on aged and developing leaves. They laid more on leaves than on petiole and stem, and more on the adaxial than on the abaxial surface side of the leaves. Larvae of the Cotton caterpillar showed their preference in the order of the cucumber (Cucumis sativus), gourd (Lagernaria siceraria), watermelon (Citrullus lanatus) > oriental melon (Cucumis melon L. var makuwa), wax gourd (Benincasa hispida), melon (Cucumis melo), star cucumber (Sicyos angulatus) > sponge cucumber (Lufa cylindrica), cotton (Gossypium indicum). There were no distinct differences among varieties and lines that were collected and hybridized at the Gochang Watermelon Experiment Station in Korea. There was a positive relationship between the leaf area and the degree of damage by the Cotton caterpillar. The feeding amounts of the Cotton caterpillar excrement were gradually increased to 16-18 days after hatching, after that the amounts of excrement were rapidly decreased.

Effect on Development and Activity of Roots by Rootstock Sort of Oriental Melon (Cucumis melo L. var. makuwa Makino) (참외의 대목 종류가 뿌리의 발달과 활력에 미치는 영향)

  • Shin, Yong-Seub;Seo, Young-Jin;Choi, Chung-Don;Park, So-Deuk;Kim, Byung-Soo
    • Journal of Bio-Environment Control
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    • v.15 no.4
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    • pp.352-357
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    • 2006
  • Results of development and activity of roots by rootstock sort of oriental melon were followed; Grafted seedlings had higher root growth than self-roots seedlings and among grafted seedlings, Shintozoa and Elite rootstocks had higher root growth. Grafted seedlings had more xylem exudate, which connects activity of roots, than self-root seedlings. Development of roots and increase of xylem exudate were better in higher temperature. Marketable yield was higher in grafted seedling and quality of fruit was higher in self-root seedling.

Effect of Light Emitting Diode on Growth and Flowering of Oriental Melon (Cucumis melo L. var makuwa Makino)

  • Shin, Y.S.;Lim, Y.S.;Lee, M.J.;Han, Y.Y.;Park, S.D.;Chae, J.H.
    • Korean Journal of Organic Agriculture
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    • v.19 no.spc
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    • pp.203-205
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    • 2011
  • Investigation on oriental melon was carried out for 30 minutes starting at 7 PM every day from March 21 to May 24 to find out the effect of light emitting diode on seedling quality, grafting, growth and flowering of oriental melon. According to the result of the investigation, plant height was longer in Blue, Infrared, Red+Blue and Red treatment and leaf number was higher in Blue, Red+Blue and Infrared treatment than those of control. No big difference was identified between control and Yellow, Green, Ultraviolet treatments. Grafting rate was high in Green, Red+Blue and Green treatment. The number of flower every week in control was nine, the number was almost 1 higher in White and Ultraviolet A treatments, but it was 1 to 4 lower in the rest of treatments. The number of female flowers of control was 10, however, it was 21 in Infrared treatment, 17 in White, 15 in Ultraviolet, 13 in Red+lnfrared, 12 in Blue and Red+Blue, 11 in Yellow and 8 in Green.

Extending shelf-life of Oriental Melon(Cucumis melo L.) by Modified Atmosphere Packaging (MA 포장기법에 의한 참외의 신선도 유지)

  • Park, Jong-Dae;Hong, Seok-In;Park, Hyung-Woo;Kim, Dong-Man
    • Korean Journal of Food Science and Technology
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    • v.32 no.3
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    • pp.481-490
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    • 2000
  • Modified atmosphere packaging was applied to oriental melon(Cucumis melo L. var. makuwa Mak.) to extend its freshness during distribution. Gas composition and ethylene content in the film bags changed rapidly at the early stage of storage. Within 10 days, weight loss of the unpackaged increased upto 7.68% while those of the packaged remained less than 1.0% except LDPE film modified by addition of 5%(w/w) zeolite with $20\;{\mu}m$ thickness(20CK, 2.38%). Firmness was effectively maintained in the LDPE film modified by addition of 5%(w/w) zeolite with $40\;{\mu}m$ thickness(40CK) and the LDPE film with $40\;{\mu}m$ thickness containing ethylene absorber sachet(40LP). Peel color of the fruit changed rapidly in control and a little in 40CK. Oriental melon packages using 40CK provided better visual and sensory quality retention compared with others. Results suggested that packaging treatment such as 40CK could be used for extending freshness of oriental melon during transport period at ambient temperature.

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Effect of Forced-air circulation of ambient Fruit on the Occurrence Fermented-fruit and Fruit Quality of Oriental Melon(Cucumis melo L. var. makuwa Mak.) (과실부위 송풍이 참외의 품질 및 발효과 발생에 미치는 영향)

  • 연일권;최성국;최부술;신용습
    • Journal of Bio-Environment Control
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    • v.8 no.2
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    • pp.99-107
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    • 1999
  • The experiment was conducted to investigate the relationship between $Ca^{2+}$ uptake and development of fermented fruit through the forced-air circulation of ambient fruit. Air circulation of ambient fruits were adjusted with 0.3m/sec wind velocity for three hours a day from 10:00 to 13:00. Treatments consisted of 0, 10 day, 20 day, 30 day of forced air circulation of ambient fruit. Although the results varied depend on the duration forced air circulation, in general, treated fruit increased fruit weight, flesh thickness, fruit hardness, soluble solids, and chromaticity, and decreased the number of fermented-fruit. $Ca^{2+}$ content in fruit.

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