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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
Effect of Irrigation Level on Plant Growth and Bulb Yield during Bulb Development Stage of Garlic Plants
Nam, Sang-Sik ; Choi, In-Hu ; Bae, Sang-Kyung ; Bang, Jin-Ki ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 169~173
This study was conducted to investigate the response of garlic growth and yield to irrigation water. The garlic seeds using the southern ecotype garlic cultivar, ‘Namdo’. The cloves were planted on the polyethylene film-mulched plots at a planting density of 18 × 11 ㎝ in a greenhouse in September 2002 and harvested in May 2003. The irrigation levels during the experimental period were 30, 20, 10 ㎜ and no-irrigation. In April 30th, plant height and leaf area were 90-96 ㎝ and 415-492 ㎝²/plant under irrigated condition, while 82 ㎝ and 392 ㎝²/plant under water stressed condition, respectively, suggesting that leaf growth was largely inhibited by water deficiency. The distribution rate of large size of garlic bulbs (abov 45 ㎜ diameter) ranges 58.9-76.5% under irrigation, but 39.4% under water-stressed condition. The yield of garlic bulbs was not significant among the 30, 20, and 10 ㎜ irrigation level which was 1,344, 1,239 and 1,157 ㎏/10a, respectively. Overall, this study suggests that the yield of garlic bulbs was significantly decreased under no-irrigation condition.
Efficient and Economical DNA Extraction Method for
Hybrid Seeds of Chili Pepper (Capsicum annuum L.)
Jang, In-Ok ; Park, Hyo-Guen ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 174~180
The study was performed to develop an efficient, convenient and economical DNA extraction method for the determination of the genetic purity of F₁ hybrid seeds essential for seeds production in chili pepper (Capsicum anmuum L.). The RAPD method has been developed and comes into use as a means of testing the genetic purity of chili pepper seeds. For the improvement of speed, easy access and cost efficiency, the DNA extracting method was greatly improved by using NaOH. There was no difference among the RAPD profiles of DNA extracted by CTAB method, Yu method, and NaOH method. NaOH was effective for amplifying DNA at the range of 0.3 - 0.7 N. The ×100, ×200, and ×1,000 dilution of DNA by Tris was not different for amplifying the specific DNA but DNA was not amplified at the ×10 dilution. When DNA extracted by NaOH method was diluted by distilled water, it could also be amplified. While CTAB or Yu method took at least 18 hours, required various complicated devices and was difficult to perform, NaOH method took less than 1 hour and made easy access possible. In conclusion, NaOH method was found applicable for testing the purity of F₁ seeds.
Development of Non-destructive Herbicide Bioassay Method Applicable in Segregating Populations of Transgenic Tomatoes
Ahn, Soon-Young ; Jang, In-Ok ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 181~184
This study was conducted to develop a non-destructive herbicide bioassay method to confirm the transgenic tomatoes in segregation populations. In order to find the proper concentration of bialaphos solution that discriminates resistance and susceptible, the filter papers were soaked in different concentrations of bialaphos solution (10, 25, 50, 75, and 100 ㎎ ℓ⁻¹). The proper concentration of bialaphos solution was found out to be 25 ㎎ ℓ⁻¹. One hundred leaflets were placed in acryl boxes moistened with filter papers that were soaked in a bialaphos solution (25 ㎎ ℓ⁻¹) for the screening of herbicide resistance. In addition, to determine the effect of leaf stage of seedlings, at the one, three, and five true-leaf stage were separately tested in the same manner. In the segregating population, non-destructive method results were matched exactly with 0.3% bialaphos application in a greenhouse.
Stable Expression of Anti-cancer Monoclonal Antibody in Transgenic Plants through Subsequent Generation
Song, Mi-Ra ; Ko, Ki-Sung ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 185~190
Recent plant biotechnology and advanced molecular immunology have established plant biopharming system as an alternative way to produce immunotherapeutic monoclonal antibodies. This plant production system is considered to have several advantages in safety and economical issues compared to other production systems. In this study, we confirmed stable gene insertion and expression of anti-cancer monoclonal antibody (mAb CO17-1A) in transgenic plants through subsequent generation. T₃ and T₄ generation of transgenic seeds were obtained by self-fertilization of homozygous transgenic line of T₂ and T₃ generation, respectively. T₃ and T₄ seedlings showed 100% of germination and survival rate in MS media containing kanamycin whereas non-transgenic seedlings did not survive. PCR analysis showed that stable gene insertion of heavy and light chains of mAb CO17-1A in T₃ and T₄ transgenic plants. Immunoblot with densitometric analysis confirmed stable expression of mAb CO17-1A in both T₃ and T₄ transgenic plants. These results suggested that transgenes and expression of anti-cancer mAb CO17-1A are stably transferred and expressed in transgenic plants through subsequent generation by self fertilization, which is applicable to generate seed bank of homozygous transgenic line.
Influence of 1-Methylcyclopropene Treatment Time on the Fruit Quality in the 'Fuji' Apple (Malus domestica)
Lim, Byung-Seon ; Oh, Soh-Young ; Lee, Jae-Wook ; Hwang, Yong-Soo ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 191~195
The effect of 1-methylcyclopropene (1-MCP) treatment on the storage quality of ‘Fuji’ apples were analyzed as related to the time of treatment. Fruits were treated with 1㎕ㆍℓ⁻¹ 1-MCP for 24 hours at 13℃, before storage and after one month of storage at 0℃ and stored at 2 storage temperature (0℃, 100℃). Both ethylene production and respiration rates in fruit treated with 1-MCP were significantly lower than those of untreated ones throughout the storage period. Flesh firmness and acidity remained at higher levels in treated fruit. Levels of ethanol and acetaldehyde were low in treated fruit after 4 months of storage at 10℃. 1-MCP treatments were effective in maintaining fruit quality regardless of treatment time.
A Report on Current Management of Major Apple Pests Based on Census Data from Farmers
Lee, Soon-Won ; Lee, Dong-Hyuk ; Choi, Kyung-Hee ; Kim, Dong-A ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 196~203
In recent, apple production system has been changed with implementation of integrated pest management (IPM) in addition to diverse apple varieties and their cultivation. A survey with a questionnaire to investigate major apple pests and their control tactics was carried out on Jan. 2004 from apple growers. The survey indicated that major apple diseases included bitter rot, marssonina blotch, white rot, and alternaria blotch and that major apple insect and mite pests included spider mite, fruit moth, hemipteran bug, fruit piercing moth, leafminer, and aphid. On the other hand, valsa canker, moldy core, sooty blotch, and flyspeck Were classified as minor apple diseases while leafrollers and bark beetles were classified as minor insect pests. Significant number (41%) of apple growers answered timing of the spider mite control at 1-2 mites per leaf. Almost half (46%) answered that they made decision to control lepidopteran pest according to the monitoring data obtained from sex pheromone trap. A question to ask diary note recording pest control practice indicated that 54% answered simple description while 34% described management practices in detail. More than half (61%) of apple growers were able to use computer for information acquisition or storage. Much more number (73%) of apple growers used speed sprayers for application of pesticide. In addition, 33% answered having motor sprayer with average application amount of about 360 ℓ/10a. Apple growers believed any unsatisfactory control was due to low field application amount (48%), spatial complexity of the canopy (28%) or lower efficacy of the chemical itself (20%). Yearly average application frequency of pesticides was 10.5 in 2003 which was fewer by 4.6 than the survey result of 10 years ago in 1993. Application frequencies of fungicide, insecticide, and miticide were 10.2, 7.6, and 2.8, respectively. Most frequent fungicides included Iminoctadinetriacetate, Tebuconazole, Fluazinam, Myclobutanil + Mancozeb, Iminoctadinetriacetate + Difenoconazole, Thiophanate-methyl, Dithianon, Kresoxim-methyl, and Azoxystrobin. Insecticides included Chilrpyrifos, phosphamidon, Dichiorvos, Methidation, and Tebufenozide, while Machine oil, Azocyclotin, Etoxazole, Propargite, and Spirodiclofen were frequently used to control mite pest.
Changes in Sugar Composition and Related Enzyme Activities during Fruit Development in Peach Cultivars
Kim, Sung-Jong ; Park, Hye-Young ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 204~211
The purpose of this research was to assess the sugar accumulation and related enzyme activities of peach fruit during fruit development. Fruit growth and development patterns of ‘Kanoiwa Hakuto’ (an early maturing cultivar), ‘Nagazawa Hakuho’ (a medium maturing cultivar), ‘Yumyeong’ (a late maturing cultivar) and ‘Changhowon Hwangdo’ (a very late maturing cultivar) were similar. In all cultivars, soluble solid content (SSC) increased rapidly as the fruit matured. The contrast, titratable acidity increased gradually until pit hardening stage, and then decreased as the fruit matured. Total soluble sugar content in fruit increased with fruit maturation. The change was almost sigmoid and mainly due to the change in sucrose which was the predominant soluble sugar in mature fruits, although initially glucose and fructose were the predominant soluble sugars in immature stage. Activity of sucrose synthase (SS) was high in young fruit and decreased as the fruit matured. That of SS increased again to high level with fruit maturation in all cultivars. On the other hand, sucrose-phosphate synthase activity was low throughout fruit maturation. Thus SS might account for the most portion of sucrose synthesis. Acid invertase (AI) activity was high at the initial fruit growth, and decreased to low level at ripening. Since AI activity was high at the early developmental stage, content of reducing sugars such as glucose and fructose were higher than sucrose content. There was the negative correlation between total starch and total soluble sugar. Sucrose was positively correlated with SSC in all the cultivars, while glucose, fructose and sorbitol showed negative correlations with SSC.
Effect of Storage Temperature on the Core Breakdown of 'Wonhwang' and 'Niitaka' Pear Fruits
Lim, Byung-Seon ; Hwang, Yong-Soo ; Chun, Jong-Pil ; Jung, Hae-Woong ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 212~216
The effect of low temperature on the incidence of core breakdown in ‘Wonhwang’ and ‘Niitaka’ pear (Pyrus pyrifolia) fruits during storage was investigated. The severity of core breakdown disorder, ethanol, and mineral content were evaluated. After 2 months of storage, core breakdown as a postharvest physiology disorder appeared in 33.3% of ‘Wonhwang’ pear fruits at 0℃, while 81.5% at preconditioning temperature and 100% at 5℃. Similar tendencies were observed in ‘Niitaka’ pear fruits. The ethanol content of the fruit stored at 5℃ was higher than any other treatments. Ca contents in healthy fruit flesh were higher than those with physiological disorder. Otherwise, N contents was low. Results showed that incidence and severity of core breakdown of ‘Wonhwang’ and ‘Niitaka’ pear fruits could be reduced by low temperature storage at 0℃.
Interspecific Cross Compatibility among Plum, Apricot and Plumcot
Jun, Ji-Hae ; Chung, Kyeong-Ho ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 217~222
Interspecific crossing among plum (Prunus salicina Lindl.), apricot (Prunus armeniaca L.) and plumcot (Plums × P. armeniaca L.) has been studied since 2000 to breed new plumcot cultivars and to obtain basic data for stone fruits breeding at the National Horticultural Research Institute. Interspecific cross pollinations of plum × apricot showed much higher fruit set than those of apricot × plum. Low percentage of fruit set in the combination of plumcot x plum and plumcot × plumcot was observed. However, the interspecific crosses of plumcot with apricot were compatible. For the stable fruit set of plumcot cultivars, co-planting with apricot as a pollinizer was necessary. Of plumcot cultivars, ‘Beniasama’ and ‘Red pricot’ are pollen-sterile, while ‘New Castle Gold’ and ‘Plum apricot’ are fertile although their pollen grains showed low germination rate. In the case of interspecific crosses between plum and apricot, the percentages of fruit set were higher in female parents with shorter pistils than ones with longer pistils.
Cell Wall Characteristics of Pithiness Tissues in 'Niitaka' Pears during Storage
Shim, Hoon-Ki ; Seo, Jeong-Hak ; Moon, Seung-Joo ; Han, Chang-Hoon ; Matsumoto, Kazuhiro ; Hwang, Yong-Soo ; Chun, Jong-Pil ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 223~229
We examined physiological and chemical characteristics of pithiness disorder occurred in stored ‘Niitaka’ pears (Pyrus pyrifolia Nakai). Pithiness disorders were increased as low temperature storage time passes and those were prominent in the fruits of full ripe which increased disorder up to 80% for 4 months of storage. Anatomical changes observed by stereomicroscope in damaged tissues showed an extent of cell collapse and cavity formation. The weights of disordered fruits were lower than those of unaffected ones when compared with fruit size. Analysis of pithiness tissues showed almost 40% of firmness drop when we compared to sound tissue. The amount of water-, trans-l,2-cyclohexanediamine-N,N,N',N'-tetra-acetic acid (CDTA)-, and sodium carbonate-soluble pectic polysaccharides and 4% KOH soluble hemicellulosic fraction increased as pithiness disorder extended. But the depolymerizations of high molecular-mass cell wall pectic-and hemicellulosic polysaccharides were not prominent in the disordered tissues while a slight difference was found between unaffected and disordered fruits. Results indicated that the depolymerization of cell wall components were not the major cause of pithiness disorder during low temperature storage in ‘Niitaka’ pears.
Comparison of Sugar Compositions and Quality Parameters during Berry Ripening between Grape Cultivars
Matsumoto, Kazuhiro ; Kim, Byung-Ki ; Oahn, Vu Thi Kim ; Seo, Jeong-Hak ; Yoon, Hong-Ki ; Park, Mun-Kyun ; Hwang, Yong-Soo ; Chun, Jong-Pil ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 230~234
Berry quality, coloration and sugar accumulation pattern were examined in 6 varieties of grape (Vitis labruscana B.) during ripening after verasion. Considerable drops of berry firmness (＜10 N) and titratable acidity (＜0.5%) were found at ripening stage, while the content of soluble solids was significantly increased along with the ripening process. Total levels of anthocyanin content among the cultivars were different, the concentration of anthocyanin sharply increased coinciding with the sugar accumulation in berries showing high correlation (r=0.956, P＜0.01) with maturity index (brix/acid) regardless of cultivars. L value of berry skin decreased after veraison. Correlations between color index for red grape (CIRG) and sugar/acid ratio were found in cultivars including ‘Campbell Early’ (r=0.802, P＜0.05), ‘Kyoho’ (r=0.853, P＜0.01), and ‘Heukguseul’ (r=0.832, P＜0.05). Sugar analysis of extractable juice by HPLC revealed that cultivars such as ‘Delaware’, ‘Campbell Early’, ‘Kyoho’, ‘Heukguseul’, and ‘MBA’ belonged to reducing sugar accumulating group at maturity and ‘Sheridan’ showed sucrose accumulation one. The rapid accumulation of glucose at ripening in former cultivars resulted in the increase of glucose/fructose ratio. These characteristic pattern of sugar accumulation may have a potential for the development as objective ripening index.
Selection and Identification of Actinomyces, and its Biological Control Effect against the Bacterial Blossom Blight Infected in Kiwifruits
Cho, Jung-Il ; Cho, Ja-Yong ; Park, Yong-Seo ; Yang, Seung-Yul ; Heo, Buk-Gu ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 235~240
We have isolated two hundred and fifty bacterial strains and examined into the antagonistic activity against Pseudomonas syringae pv. syringae causing the pathogenic bacterial blossom blight of kiwifruits. We screened and isolated the best antagonistic strain designated as the strain #110 showing 73.0% antagonistic activity against P. pv. syringae. The strain #110 was identified as Streptomyces sp. #110 based on its morphological, physiological, biochemical and chemotaxonomic characteristics. By the bacterialization of cultural broth and heated filtrates of cultural broth, Streptomyces sp. #110 showed almost all of antagonistic activity against the bacterial blossom blight.
Effect of the Season of Drought Stress on the Free Sugar Concentration and Sugar-Related Enzyme Activity in Fruit Juice of Early-Maturing Satsuma Mandarin
Chae, Chi-Won ; Song, Kwan-Jeong ; Moon, Doo-Khil ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 241~247
Sixteen uniform potted 7-year-old ‘Okitsu Wase’ satsuma mandarin (Citrus unshiu Marc.) grafted on trifoliate orange stock in a glass house were randomly assigned to four groups; conventional soil water supply at level of Ψmax of -0.3~-0.4 ㎫ during the whole period from July 21 (fruit diameter about 30㎜) through Nov. 20 (WW), mild drought stress at level of Ψmax of -0.6~-0.7 ㎫ during the whole period (DD), drought stress during 50 days from July 21 through Sept. 10 (DW), and drought stress during 50 days from Oct. 1 through Nov. 20 (WD). Drought stress inhibited the fruit growth, but the growth became most vigorous in response to supply of water after drought, resulting in the largest fruit in DW. The concentration of fructose and glucose in fruit juice was increased by drought stress, and the difference between fruits with and without stress did not changed during the prolonged drought, but disappeared in response to supply of water after drought. The concentration of sucrose was also increased by drought, but the difference between fruits with and without stress steadily increased during the prolonged drought and maintained even under the condition without drought. The activity of sucrose synthase (SS) and sucrose phosphate synthase (SPS) was increased by drought, and the pattern of change was similar to that of fructose or glucose rather than that of sucrose. It was suggested that the increase in the activity of SS by drought represents the increase in sink strength, the increase in the concentration of hexoses accounts for the degree of active osmoregulation, and the accumulation of sucrose is the accumulated results of the increased sink strength.
Breeding of a New Bright Pink Gerbera 'Pink Light' with Strong Peduncle and High Yielding for Cut Flower
Chung, Yong-Mo ; Hwang, Ju-Chean ; Chin, Young-Don ; Cho, Yong-Cho ; Kwon, Oh-Chang ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 248~251
A new pink gerbera (Gerbera hybrida Hort.) ‘Pink Light’ was developed from a cross ‘Grandeur’ and ‘Nova Zembla’ followed by seedling and line selections at the Flower Breeding Research Institute, Gyeongnam Agricultural Research and Extension Services in 2005. Characteristic tests were conducted three times from 2003 to 2004. ‘Pink Light’ has semi-double type middle flower in good harmony with bright pink (RHS 62-B) ray floret and green center. It has good stable flower shape and strong peduncle, and its vase life was 13.2 days. The average yield of ‘Pink Light’ was 50.6 flowers per plant a year in greenhouse yield trials carried out from 2003 to 2004. This cultivar registered for commercialization in 2005. ‘Pink Light’ would be cultured under greenhouse condition in Korea.
Evaluation of Economical Efficiency on C-channel and Ebb & Flow System
Kang, Seung-Won ; Pak, Chun-Ho ; Cho, Yong-Sung ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 252~258
Economical efficiency for production of high quality-potted plants was analyzed by types of irrigation system such as conventional fertigation, ebb & flow, and C-channel as subirrigation systems. After cost structure was analyzed, payback period of capital, internal rate return (IRR), and effects of reduced labor cost were estimated. The gross cost of cyclamen-producing farmers using hydroponic systems in automated greenhouses (10a) was about 100 million won. Of the gross cost, installation and operation costs occupied 74% and 25%, respectively. In the C-channel subirrigation system, gross cost was 120 million won approximately. Installation and operation costs occupied 70% and 30%, respectively. Payback period of capital was 4 years for fertigated irrigation and C-channel subirrigation system, whereas it was 5 years for ebb & flow. IRR of ebb & flow and C-channel subirrigation systems was higher than the interest rates of 4.82%, indicating economic efficiency.
Materials and Pattern Types of Flower Containers Used for Korean Traditional Flower Arts According to the Ages
Hong, Hoon-Ki ; Lee, Jeong-Sik ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 259~267
To discover the main features and changes of Korean traditional flower art, it was imperative to research 533 articles. These articles included wall paintings, diagrams, sculptures, literary articles, and photographs. The flower container shape usage was followed as Ho (meaning crock like), 44%; Beong (meaning vase like), 29%; Ban (meaning basin like) and Bal (meaning bowl like), 11% each. In the Three Kingdoms, the Ho and Ban were used the same proportionally. The Ban was used more frequently than the Beong and Ho in the Goryeo era; however, the Ho was used more than the Ban in the Joseon dynasty and through the rule of the Japanese imperialism ages. In the investigation of the shape of the containers, the smooth curve line was used more often than the angle line shape. Of the 607 traditional arrangements noted during that time, 81% of the time one material was used. Two materials were used 11% of the time, and seldom was three or more materials used. Ornamental trees and shrubs were used more than annuals and perennials in horticultural classification. The frequency of species usage, in order, was the lotus, tree peony, peach, garden peony, and chrysanthemum. The use of lotus was represented most in the Three Kingdoms and Goryeo eras. In the Joseon dynasty, the use of large quantities of tree peonies, along with a few peaches and lotuses, meant riches and honors. Under the rule of Japanese imperialism ages the use of chrysanthemum was widely incorporated.
Effect of Horticultural Therapy Based upon Reality Therapy on the Reduction of Depression, the Change in Parental Sense of Competence, and Stress Coping Types of Elementary Student's Mother
Hwang, Hyun-Jung ; Lee, Young-Ae ; Song, Jong-Eun ; Son, Ki-Cheol ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 268~276
The purpose of this study is to research the effects of horticultural therapy programs in which reality therapy is applied on the reduction of depression, methods for coping with stress, and parent efficacy of internal factors of mothers as related to the growth of children. The number of the subjects was a test group and a control group consisting of 10 and 14 mothers, respectively. A horticultural therapy program in which reality therapy was applied was performed in the treatment group 15 times in total (two times per week) from April 17 to June 8, 2006. The horticultural therapy program consists of the want-doing-evaluation-plan steps based on the consultation step of reality therapy. The program consists of preferred ones based on the degree of an interest in horticultural activities and sub-programs appropriate to each step. The assessment tools of this study were parental sense of competence, a self-rating depression scale, and the ways of coping checklist. When changes after the horticultural therapy were compared with pre-therapy status in each test group, there were notable differences in relieving depression, improving the methods for coping with stress focusing on problems, and improvement of competence as parents, which is a sub-factor of parent efficacy in the treatment group. However, there were no differences in anxiety as parents and interest as parents, which are sub-factors of parent efficacy, nor in methods for coping with stress focused on emotions. As a result of this study, horticultural therapy based on reality therapy turned out to be very effective on relieving depression, improving methods for coping with stress focused on problems and competence as parents of elementary school student’s mother, however, in order to improve total parent efficacy, it was suggested that a new program based upon interaction between parents and their children and other factors related to parent-efficacy would be required.
Effect of Horticultural Therapy Using Pressed Flower Based Upon Logotherapy on the Improvement of the Purpose in Life and Ego Identity of Middle-aged Women
Lee, Young-Ae ; Hwang, Hyun-Jung ; Song, Jong-Eun ; Son, Ki-Cheol ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 277~290
Both the practice of horticultural therapy using pressed flowers based upon logotherapy and the practice of conventional horticultural therapy using pressed flowers were compared to investigate the effectiveness on the improvement of the purpose in life, ego-identity, and self-esteem of middle-aged women. The participants of this study was low-income, middle-aged women whose ages ranged from 40 to 59 resident in 00 city. The control group, treatment group Ⅰ, and treatment group Ⅱ consisted of 15, 12, and 13 people, respectively. Study was performed from May 23rt 2006 to August 10th 2006. In treatment group Ⅰ conventional horticultural therapy using pressed flowers was applied while horticultural therapy using pressed flowers based upon logotherapy was applied in treatment group Ⅱ once a week and 12 times programs in total. A purpose in life (PIL) test, ego-identity scale, and self-esteem scale were used as tools of this study and pre- and post assessments were made. When changes after horticultural therapy were compared with pre-therapy status in each test group, no differences in PIL, ego identity and self-esteem were made in the control group. In both treatment group Ⅰ and Ⅱ, significant differences were made in overall PIL and ego identity, self-esteem. However, as the changes of sub-categories of PIL and ego identity were compared between treatment group Ⅰ and Ⅱ, treatment group Ⅱ showed more significant improvement in goal achievement and self sufficiency among PIL items, than those of treatment group Ⅰ. Among ego identity, the improvement of goal orientation was more effective in group Ⅰ whereas that of self-acceptance was more effective in group Ⅱ. Through comparing the differences between pre and post horticultural therapy in each three group, there were significant differences in life goal, future aspiration, and self-sufficiency belonged to the sub-categories of PIL and overall PIL. Notable improvement was made in the life goal in treatment groups Ⅰ and Ⅱ as compared to the control group. Additionally, treatment group Ⅱ showed higher improvement in overall PIL as well as future aspiration and self-sufficiency than those in treatment group Ⅰ. In accordance with the differences in ego identity between pre and post horticultural therapy, overall ego-identity as well as self-acceptance and awareness of self-exstence in both treatment groups were improved as compared to that of control group. In the case of self-esteem, there was no significant differneces between treatment group Ⅰ and Ⅱ but both groups showed improvement in average as compared to control group. These results suggest that both the conventional horticultural therapy using pressed flowers and the one based upon logotherapy have effects on the improvement of PIL, ego identity, and self-esteem and that the latter is profoundly effective in the improvement of PIL.
A New Asiatic Lily 'Sabi' with Deep Yellow Flower for Bedding
Rhee, Hye-Kyung ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 291~294
A new Asiatic lily (Lilium spp.) cultivar ‘Sabi’ was released in 1998. The cross was made in 1992 between Asiatic lily ‘Sunray’, spotted and yellow color, and ‘Foxtrot’, unspotted orange color for bedding lily flower with no spot. ‘A94-36’ lily line was selected in 1994. Multiplication of bulb, and characteristic tests were conducted in Suwon from 1995 to 1997. The evaluation of regional characteristics as ‘Wonkyo CI-6’ was investigated at 1998 in Suwon and Iksan. The flowering time of ‘Sabi’ is the beginning of June. It has no fragrance and deep yellow color (RRS, Y13B). The width of flower is 13㎝. The length and width of outer petal is 6.9 ㎝ and 2.4 ㎝, respectively. There is no spot in petal. Also, the plant height of ‘Sabi’ is about 30.1 ㎝. It is needed to control Botrytis disease in wet summer season.
Analysis of Research and Development Papers of Lettuce in Korea
Jang, Suk-Woo ; Lee, Eung-Ho ; Kim, Won-Bae ;
Korean Journal of Horticultural Science and Technology, volume 25, issue 3, 2007, Pages 295~303
Lettuce (Lactuca sativa L.) was introduced in AD 6 ~ 7 C in Korea, was developed, loved a series of Korean food cultures, especially “Ssam” which means cooked rice with vegetable and meat. It was produced and consumed all year round as a source of important vegetable. It is produced 241,323 ton at 8,088 ha in 2004 year, increased annually both production and consumption, also have a blight possibility of export to abroad. Trend of Korea lettuce production have 84% of leaf lettuce, next to crisp head lettuce is 15% and romaine or others is 1%. Knowing the current research and development of lettuce, we investigated 398 papers of journal and report which was published in Korea. The breeding and seed production research parts is 5.2%, cultivation and physiology is 62.9%, tissue culture and transgenic plants is 4.7%, post harvest and content of components parts is 10.3%, pest parts is 11.7%, and management and others is 5.2%. Mainly, the trend of lettuce research until now was biased at cultivation and physiology parts. The breeding and seed production, tissue culture and trasngenic plants, post harvest and content of components research parts were insufficient as a result of research activities. So we can considered that the prospect of future research of lettuce will be more concentrated on the insufficient parts like as; genetic and breeding, using biotechnology, post harvest and processing research parts.