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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Journal of Horticultural Science and Technology
Journal Basic Information
Journal DOI :
Korean Society of Horticultural Science
Editor in Chief :
Volume & Issues
Volume 25, Issue 4 - Dec 2007
Volume 25, Issue 3 - Sep 2007
Volume 25, Issue 2 - Jun 2007
Volume 25, Issue 1 - Mar 2007
Selecting the target year
Effects of Functional Tray in MA Packaging on the Absorption of Ethylene, Odor Compounds, and Quality of Broccoli Florets
Jeong, Cheon-Soon ; Park, Jong-Nam ; Kyoung, Jang-Hun ; Kang, Jung-Phil ; Won, Jong-Myoung ; Lee, Sung-Jae ; Jo, Tae-Su ; Ahn, Byung-Jun ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 1~5
This study was carried out to investigate effect of the charcoal paper tray in MA packaging on the absorption of detrimental gas and quality change of broccoli florets, and to examine weather it could be used as environmently sound functional tray instead of the present plastics tray. The O₂ content of 4-5% was maintained in all treatments during storage period, but the CO₂ content was rather lower in the pulp and charcoal paper treatments than in the control treatment. The ethylene content, also, was 0.77 ppm lower in the charcoal paper treatment than in the control treatment after 15 days. Additionally, acetaldehyde and ethanol contents were about 2 times lower in charcoal paper treatment than in control and pulp paper treatments. The Hunter ‘b’ value, an indicator of yellowing, was increased quickly after 10 days in the control and pulp paper treatments, but that in the charcoal paper treatment was not almost changed during storage period. The ascorbic acid and total chlorophyll contents were decreased remarkably in control and pulp paper treatments after 15 days, but these in the charcoal paper treatment were maintained highly during storage period. The marketability was extended from 5 to 10 days. Weight loss in charcoal paper treatment was some higher than that in other treatments, but marketability loss was not caused by weight loss.
Extending the Postharvest Quality of Tomato Fruit by 1-Methylcyclopropene Application
Choi, Sun-Tae ; Bae, Ro-Na ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 6~11
A inhibitor of ethylene action, 1-methylcyclopropene (1-MCP), was treated to prolong the shelf life of ‘Supermomotaro’ tomato at concentrations of 250, 500, and 1,000 ppb for 4 h at 20℃ with 90% RH. After treatment tomatoes were stored still at 20℃ with 90% RH. The ethylene evolution was abruptly increased after 2 days storage at tomatoes of all treatments and control, but the values of treated tomatoes were less than that of control. The respiration was also inhibited by 1-MCP treatment effectively. All 1-MCP treated tomatoes were harder than non-treated fruit, but there were no significant difference among the 1-MCP treated groups. Weight loss was found to be less in 1-MCP treated groups compared with control. Fruits of all treatment groups and control began to increase rapidly in Hunter ‘a’ value, indicated reddish degree, from 2 days after harvest and showed each of peak in 6 days. However 1-MCP treated tomatoes revealed less the values than those of control. Fruit deterioration degree were similar between 250 and 500 ppb of 1-MCP treatment groups, but the degree of 1,000 ppb 1-MCP treatment group was higher than those of low concentration treatment groups. The treatment of 1,000 ppb might be high for tomato fruit, and thereby leading to injury. The 1-MCP concentration of 500 ppb can be recommended to maintain the good appearance and quality among tomatoes treated as well as control.
Effect of Low-Temperature and Short-Photoperiod Treatment during a High-Temperature Season on Flower Bud Formation and Generation Acceleration of Short-Day Strawberry
Rho, Il-Rae ; Cho, Yong-Seop ; Cheong, Jae-Wan ; Jeong, Ho-Jeong ; Jeong, Hae-Boong ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 12~16
Floral induction in strawberry is generally influenced by thermo-photoperiod and several agronomic and nutritional factors. This study was conducted to find out the environmental and plant physiological conditions for inducing the flower bud formation during the hot and long-day season. The progeny from a varietal cross of ‘Johong’ × ‘Sachinoka’ and three selfed generations from ‘Johong’, ‘Sachinoka’ and ‘Elan’ varieties were treated for 9 weeks with low temperature of 5℃ and short day-length of 8 hours during the su㎜er. The flower bud formation rate of the progeny selfed from an ever-bearing variety, ‘Elan’ was 100%, whereas that of the progeny crossed from ‘Johong’ × ‘Sachinoka’ and that of the progeny selfed from ‘Johong’ and ‘Sachinoka’ showed 58.7%, 22.6%, and 54.4%, respectively. As a result, it proved that low temperature and short photoperiod is essential for flower induction but high temperature and long day condition is also necessary for flower development in strawberry. Crown diameter of seedling to react on low temperature and short day treatments must to be at least 9-10 ㎜, and it need about 80 days from sowing.
Effect of Proton Ion and Gamma-Ray Irradiation on Radiosensitivity of
Seedlings in Brassica napus
Eun, Jong-Seon ; Kim, Jun-Su ; Lim, Hwan-Su ; Han, Suk-Kyo ; Choi, So-Ra ; Jang, Young-Seok ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 17~23
This experiment was carried out to increase the cultivation area of rape (Brassica napus) and develop this plant as a biodiesel so dry seeds of 3 cultivars, ‘Naehan’, ‘Hanla’, and ‘Tammi’ were irradiated with proton ion and gamma-ray at range of 0 to 2,000 Gy and then radiosensitivity of M1 generation were investigated. The germination rate were more than 95.3% regardless of radiation source, dosage and cultivar and emergence rate at 6 days after sowing were decreased by increasing dosage but those of 12 days as more than 91.7% were similar all together. Survival rate in 1,000 Gy and below at 7 weeks after sowing were similar but remarkably reduced 38.1～84.1% in 1,500 Gy and 2,000 Gy. The length and area of cotyledon, and hypocotyl length in all 3 cultivars were badly reduced with high significancy by increasing dosage of proton ion and gamma-ray irradiation and sensitive responses were showed in order of ‘Naehan’, ‘Hanla’, and ‘Tammi’. On the other hand, there was hormesis that the length and area of cotyledon were more increased at 100～200 Gy in the proton ion than control in ‘Tammi’. Chlorophyll content, number of true leaves and leaf area at 1 month after sowing were decreased by increasing radiation dosage regardless of radiation source so had high significancy. As the cotyledons at 1 month after sowing almost showed chlorosis in more than 800 Gy and chlorosis was especially serious in ‘Tammi’. The number of true leaves was about 2.3 in control and the low level of dosage but cotyledon didn’t grow in the high level dosage of 1,500 Gy and over. And the dosage in which leaf area was reduced to 50% compared to that of control were 800 Gy in ‘Naehan’ and 1,500 Gy in ‘Tammi’ and ‘Hanla’ by proton ion and 400 Gy in ‘Tammi’, 1,500 Gy both ‘Naehan’ and ‘Hanla’ by gamma-ray. The fresh weight of top land than root was more sensitive so dosage in which fresh weight reduced to 50% compared to that of control were 600 Gy in ‘Naehan’ and 1,000 Gy both ‘Tammi’ and ‘Hanla’. As the results, growth of seedling decreased over 50% in more than 1,000 Gy with high sensitivity to radiation and so it was appeared that proper dosage for mutation breeding in rape was 1,000 Gy and below.
Effect of Furrow Mulching with P.E. Black Film and Dripping of Phosphorus Acid on Control of Phytophthora Root and Fruit Rot (Phytophthora capsici) Occurred in Field-grown Watermelon
Noh, Jae-Jong ; Kim, Woong ; Lee, Ki-Kwon ; So, Soon-Young ; Ko, Bok-Rae ; Kim, Dae-Hyang ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 24~28
The experiment was carried out to investigate the possibility in control of Phytophthora root and fruit rot (Phytophthora capsici) in field-grown watermelon during summer season. The disease started to occur in 29 June in the experiment field. To investigate which method was more effective against the disease, four methods, such as fungicide application, furrow mulching with P.E. black film, and dripping of phosphorus acid at root area and fruit setting area, were combined. They did not show any difference in the early stage. When harvest season was coming, the incidence was developed rapidly and reached to 100% and other treatments couldn’t reduce the disease incidence very much, but furrow mulching with black film influenced the reduction of the disease significantly. Regression equations between the pathogen density and the diseased vine rate, the pathogen density and the diseased fruit rate, and the diseased plant rate and the diseased fruit rate were [diseased vine rate (%) = 40.17 + 5.07 × pathogen density (r²=0.552**)], [diseased fruit rate (%) = 31.24 + 5.15 × pathogen density (r²=0.566**)], and [diseased fruit (%) = -3.30 + 0.90 × diseased vine rate (r²=0.943**)], respectively. This result indicated that fruit infection would be influenced much more by infected vine rather than by pathogen density in soil.
Selection of Tobacco Plants Expressing Chinese Cabbage Myrosinase Gene and Quantification of Myrosinase Gene Expression Level using Quantitative Real-Time PCR Method
Han, Sang-Hoon ; Lee, Dong-Woo ; Kim, Eul-Hwan ; Lee, Mi-Kyoung ; Park, Young-Doo ; Kim, Sung-Hoon ; Yoon, Byoung-Su ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 29~36
Phenylethyl isothiocyanate, a isothiocyanate found in chinese cabbage (Brassica campestris), was reported to have a potent cytotoxicity and to be able to induce apoptosis against HL-60 human leukemic cell line. Sulforaphane (1-isothiocyanato-4-(methylsulfinyl)-butane), is a metabolite of the glucosinolate-glucoraphainin by myrosinase in chinese cabbage. Hence, it would be possible to produce functional chinese cabbages having high sulforaphane contents by means of inducing myrosinase over-expression in the plant. In this study, we developed quantitative real-time PCR detection method for the quantification of myrosinase mRNA level in the transformants. The detection primer set of the method showed high specificity to the target gene and produced 183 base-pairs of PCR amplicon. 26 transformants, Nicotiana tabacum having myrosinase sense or antisense genes, were analysed and quantified successfully. In conclusion, this method would not only facilitate to select the useful transformants but also assay effectively the quantification of expressed myrosinase in the transformants.
Change in the Quality of 'Fuji' Apples by Using Functional MA (modified atmosphere) Film
Park, Hyung-Woo ; Cha, Hwan-Soo ; Kim, Yoon-Ho ; Lee, Seon-Ah ; Yoon, Ji-Yoon ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 37~41
The research was conducted to measure the effect of functional MA (modified atmosphere) film (25, 35, 45 ㎛) of the quality maintenance on ‘Fuji’ apple during storage for 24 weeks at 0℃. Weight loss in film packaging was lower and firmness higher than those of control. Titrate acidities, in control, MA (25 ㎛), MB (35 ㎛) and MC (45 ㎛) were 0.08, 0.15, 0.13, and 0.13% in 24 weeks, respectively. Soluble solid contents in MA and MB was higher value than control and MC. Decay rate in control, MA, MB and MC were 6.8, 2.4, 3.4, 4.7% in 24 weeks, respectively. Total ascorbic acid contents decreased in control and film packaging during 24 weeks. Therefore, it could be suggested that the functional MA (25 ㎛) film is more effective than other film packaging in storage of ‘Fuji’ apple.
Shape Alteration of 'Geumchonjosaeng' Pear Fruit by Removing Calyx
Kang, Sam-Seok ; Cho, Kwang-Sik ; Kim, Yoon-Kyeong ; Jeong, Sang-Bouk ; Song, Jang-Hoon ; Lee, Hee-Jae ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 42~46
The fruit shape of ‘Geumchonjosaeng’ (Pyrus pyrifolia var. culta Nakai) which was released in 2001 is obovate owing to perpetual calyx naturally existed till harvest time. Thus, this experiment was conducted to determine the effect of calyx removal on shape alteration of ‘Geumchonjosaeng’ pear fruit. The calyx was removed manually at 5, 10, 20, 30, 40, and 60 days after floral abscission (DAFA) respectively. Removing calyx during floral abscission period affected fruit shape. The calyx removal at 5 and 10 DAFA produce round type fruit. The fruit that calyx removed at 20 and 30 DAFA form long-round shape with a projecting part at the fruit apex. The extent of protrusion at calyx end increased as the treatment was delayed. The calyx removal at 45 and 60 DAFA was not effective for improving fruit shape of ‘Geumchonjosaeng’ pear. The calyx removal-treated fruits during floral abscission period were smaller than those of other treatments. Thus, it concluded that the existence of calyx affect the fruit shape and growth at the early stage of fruit development.
Effect of Relative Humidity under Various Packaging Treatments on Quality of Grape Fruits during Cold Storage
Hong, Yoon-Pyo ; Lee, Eun-Jin ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 47~53
The influence of relative humidity (RH) under various packaging treatments on weight loss and quality of ‘Kyoho’, ‘Campbell Early’, and ‘Muscat Bailey A (MBA)’ grape fruits was investigated. Fruits were stored at -1∼0℃ under various RH conditions for 50 days. Low-density polyethylene (LDPE) film (0.03 ㎜) with and without pores (5 ㎜ diameter) was used to generate various RH conditions under packaging treatments. Two clusters (400-450 g fresh weight per cluster) were put into a white plastic tray (25 20 ㎝) and covered with LDPE film and then sealed. Control fruits were stored without packaging treatment. RH resulted from various packaging treatments were obtained as following; sealed bag without pores (RH 100%), 10 pores (RH 90-98%), 20 pores (RH 80-90%), 30 pores (RH 70-80%), open-coverage without sealing (RH 63-70%), and as control non-packaging (RH 48-65%). RH conditions greatly affect the weight loss in all grape fruits during cold storage. Cultivars with good storability, such as ‘Kyoho’ and ‘Campbell Early’, were less sensitive to lower RH conditions than ‘MBA’ and showed lower weight loss. However, storage under RH 100%, sealed bag without pores, gave poor quality owing to decay induced by pathogens. Fruits stored at low RH (48-65%) had higher ethylene production, pH, and soluble solid contents but lower anthocyanin content than those at high RH (100%). Based on weight loss data observed through the study, we also could suggest a functional formular to predict weight loss (%) according to storage duration of grape fruits under various RH conditions resulted from packaging treatments of cold storage chamber.
Treatment on Postharvest Quality of 'Kurakatawase' Peach Fruits
Choi, Jeong-Hee ; Lim, Jeong-Ho ; Jeong, Moon-Cheol ; Kim, Dong-Man ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 54~58
This study was conducted to evaluate the efficacy of high CO₂ pre-treatment on quality of ‘Kurakatawase’ peach fruits. High levels of CO₂ (60 and 100%) were applied on fruits at 20℃ for 3 and 6 h. Changes in factors of fruits quality, respiratory rate, ethylene production, decay, soluble solids content (SSC), and titratable acidity of fruits during shelf life at 20℃, were investigated. No significant differences in respiration rate, ethylene production, and hardness were observed between the high CO₂-treated and non-treated fruits during shelf life. Fruits quality parameters such as SSC and titratable acidity were higher in CO₂-treated fruits compared with non-treated fruits. The high CO₂ pre-treatments significantly reduced decay of fruits. Fruits treated with 60% CO₂ for 6 h showed the best score in sweetness and overal palatability. Treatment of 100% CO₂ for over 3 h, which showed inhibiting effect on the decay of fruits, accompanied off-flavor by residual CO₂ in flesh. Pre-treatment of 60% CO₂ for 6 h, therefore, could be used as a good control of postharvest quality of ‘Kurakatawase’ peach fruits without off-flavor.
Seasonal Diagnosis of Nitrogen Status of 'Fuji'/M.26 Apple Leaves Using Chlorophyll Meter
Park, Jin-Myeon ; Park, Jeong-Gwan ; Lee, In-Bog ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 59~62
Portable chlorophyll meter (SPAD－502) could be used as a valuable tool for rapidly and nondestructively assessing foliar nitrogen status for crops, but not well-studied for apple tree in Korea. The objective of this study was to evaluate the ability of portable chlorophyll meter to estimate foliar nitrogen status of ‘Fuji’/M.26 apple tree. For this purpose, we selected 21 representing ‘Fuji’/M.26 apple trees from 4 locations of apple tree orchards and investigated correlations between SPAD reading value and nitrogen content for apple leaves from 2001 to 2003. Significant regression equations were established between foliar nitrogen content obtained through chemical analysis and SPAD reading value from May to August. From seasonal investigations, the best correlation between the SPAD reading value and foliar nitrogen content were obtained from the measurement result in May (P ＜ 0.01, r = 0.87), but the lower correlations in August (P ＜ 0.01, r = 0.67), as affected by differential stage of crop growth. On the other hand, the optimal ranges of SPAD reading value for diagnosis of foliar nitrogen status of ‘Fuji’/M.26 apple tree were 43.7 to 49.4, 46.5 to 50.4, 47.5 to 52.4, and 50.5 to 53.4 in May, June, July, and August, respectively. In conclusion, these data indicate that the SPAD reading using a chlorophyll meter could be used for rapidly, cheaply, and conveniently estimating indirectly foliar nitrogen status of apple tree, although the correlation coefficients between SPAD reading value and foliar nitrogen content tended to be gradually declined with progress of growth stage.
Influence of Chitosan Treatment on the Disease Incidence and Quality Deterioration of Postharvest Grape
Choi, Seong-Jin ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 63~66
Different molecular weights of chitosan, N-deacetylated derivative of chitin acquired from supporting material of Crustacea, were treated on postharvest grape in order to investigate their influence on disease incidence and quality during storage of fruit. Higher molecular weights of chitosan enhanced storability of grape by efficiently delaying reduction of fresh weight, drying and browning of rachis, berry abscission, and also by reducing respiration and decrease in titratable acidity. These effects probably resulted from the limited water and gas permeation through the chitosan coating formed on the surface of fruit. In respect to disease, however, smaller molecular weight of soluble oligo-chitosan was more efficiently reduced disease incidence. Thus, mixed treatment of smaller and hight molecular weight of chitosan is expected to bring simultaneous effect of enhanced storability and reduced disease incidence during storage of grape.
Combining Ability and Correlations for Related to Growth and Flowering Characteristics in
Hybrids by Diallel Cross of Cyclamen persicum
Song, Cheon-Young ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 1, 2007, Pages 67~73
This study was conducted to determine combining ability and correlation among plant height, plant width, leaf length, leaf number, floret height, floret diameter, number of floret and peduncle length in 10 F₁ crosses made from the partial five-parent diallel cross in Cyclamen persicum. The plant height showed high positive correlations with number of floret and peduncle length. The mean squares of general combining ability (GCA) and specific combining ability (SCA) were highly significant for all the investigated characteristics. Variance component values of SCA were greater than those of GCA for all parameters, implying preponderance of non-additive gene actions for these characters. Relatively high GCA effects were obtained from the line of D for plant height and plant width, and the lines of A and D for floret diameter, peduncle length, and number of floret. Crosses of A×B, A×C, A×D, B×E and D×E exhibited high SCA effects on number of floret. The broad sense heritability was generally high as compared with narrow sense one. Particularly, number of floret showed high effects in narrow sense heritability.