• Korean Journal of Medicinal Crop Science
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• v.21 no.1
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• pp.49-53
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• 2013

This study was performed to evaluate the adaptability of farm field soil transplanting and habitat growth in inland and seashore areas of Artemisia capillaris in South Korea. In habitat, Artemisia capillaris was distributed both in the inland and seashore area as hemicryptophyte, and it grows individually on the slope of the open sunlight. The inland and seashore soils of habitat was the slightly acid and weakly alkaline, respectively. Plant height was 55.6 cm, and it was higher in inland than that of the seashore area. The stem and branch number was less in inland than that of the seashore area. Flowering period was mid-August, and flower of inland blossomed early 1 ~ 3 days than that of the seashore area. The flowering and fruiting rate was slightly lower in inland than that of the seashore area. After transplanting of Artemisia capillaris, plant height was 71.7 cm, and it was higher 16.1 cm than that of the habitat. The stem and branch number was more than that of the habitat, and flower blossomed early 3 ~ 4 days than that of the habitat. Transplanting survival rate was 85.1%, it was slightly higher in inland than that of the seashore area.

• Journal of Forest and Environmental Science
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• v.26 no.2
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• pp.95-102
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• 2010

Jatropha curcas is an oil bearing species with multiple uses and considerable economic potential as a biofuel plant. Plant flowering and breeding characteristics are important for us to understand the reproduction of plant populations. The present study describes the floral biology and flowering phenology of J. curcas which is a prerequisite for hybridization program for genetic improvement through conventional breeding. The plant produces flowers in dichasial inflorescences. Normally, the flowers are unisexual, and male and female flowers are produced in the same inflorescence. Only a few male flowers are produced in an inflorescence, and fruits are produced only through pollination between different flowers from the same or different plants. This study includes a description of the inflorescence, flower anatomy of both male and female flowers, female : male ratio, pollen : ovule ratio, flowering phenology, pollen viability, stigma receptivity, comparison of selfing methods and a comparison of geitonogamy and xenogamy. This information may be useful in J. curcas breeding programmes.

• Korean Journal of Plant Resources
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• v.19 no.2
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• pp.223-226
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• 2006

This study was conducted to select proper varieties of cucumber by comparing growth and yield in retarding cultivation under hydroponic culture. Number of leaves appeared to be the highest Chungjangoi and the lowest in Heukjinjuoi. Heukjinjuoi showed higher vegetative growth rate. Heukjinjuoi showed the highest number of female flowers while Chungjangoi the lowest. The ratio of female flower was the highest in Heukjinjuoi and the lowest in Chungjangoi. Abortion of female flower appeared to be the highest in Heukjinjuoi and the lowest with 0% in Chungjangoi. There was no significant difference in yield between treatments of removal and not-removal of lateral buds.

• Horticultural Science & Technology
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• v.29 no.6
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• pp.641-644
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• 2011

A new standard red color gerbera (Gerbera hybrida Hort.) 'Red Auction' was developed from a cross of '01-120-195' and 'Misty red' followed by seedling and line selections at the Flower Research Institute, Gyeongsangnam-do Agricultural Research & Extension Services (ARES) in 2008. Characteristics trials were conducted three times from 2006 to 2008. 'Red Auction' has semi-double type in good harmony with red color (RHS 45-A) ray floret and a good stable flower shape and strong peduncle. Its vase life was 11.3 days. The average yield of 'Red Auction' was 48.8 flowers per plant a year in greenhouse yield trials carried out from 2006 to 2008. This cultivar registered for commercialization in 2010.

• Horticultural Science & Technology
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• v.29 no.1
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• pp.77-80
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• 2011

A new bi-color mini gerbera (Gerbera hybrida Hort.) 'Sun Cap' was developed from a cross of '99-ga-2' and '99-na-3-1' followed by seedling and line selections at the Flower Research Institute, Gyeongnam Agricultural Research and Extension Services (ARES) in 2007. Characteristic tests were conducted three times from 2004 to 2007. 'Sun Cap' has single type in good harmony with bi-color (Red/Yellow, RHS 45-B/9-A) ray floret and green center. It has good stable flower shape and strong peduncle. Its vase life was 13.5 days. The average yield of 'Sun Cap' was 102.6 flowers per plant a year in greenhouse. Yield trials were carried out from 2004 to 2007. This cultivar was registered for commercialization in 2009. 'Sun Cap' would be cultured under greenhouse condition in Korea.

• Journal of Radiation Industry
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• v.6 no.2
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• pp.147-152
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• 2012

Anthocyanins are major plant pigment and produced through phenylpropanoid pathway. In this study, anthocyanin biosynthesis mechanisms of chrysanthemum flowers were studied using 'Argus' and flower color mutant 'ARTI-purple' which were induced by 40 Gy gamma irradiation ($Co^{60}$). And, three chrysanthemums, 'Ford', 'Yeonja' and 'Orando' were additionally used as the check varieties to understand the relationship between flower color and expression patterns of genes. The expression patterns of the anthocyanin biosynthetic genes were matched with the flower color of the check varieties. High anthocyanin concentration of 'Orando' showed the high expression of anthocyanin biosynthetic genes. In the white flower of 'Ford', expressions of CHI, DFR and ANS were not identified. Despite different flower color, 'Argus' and 'ARTI-purple' showed different expression patterns compared with the check varieties. From the dot blot analysis, we screened the seven genes showing the different expressions between 'Argus' and 'ARTI-purple'.

• FLOWER RESEARCH JOURNAL
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• v.16 no.3
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• pp.218-221
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• 2008

A new cultivar of Rosa hybrida 'Wooami Salmon' was developed by crossing 'Silver 87' and 'Lambada' at Gumi Floricultural Experiment Station in 2001. Characteristics trials were conducted three times from 2003 to 2006. This cultivar showed pale salmon flower color (RHS, Orange group 27-B) and standard type with good flower shape. The flower diameter is 10.8cm and the number of petals per flower is 46. Vase life of 'Wooami Salmon' could be as long as 12.8 days. The yearly mean yields of 'Wooami Salmon' was $129stems/m^2$. 'Wooami Salmon' has good quality of cut flower and strong vigor in plant growth. This cultivar is appropriate for both soil and solution(hydroponics) cultures.

• Journal of Bio-Environment Control
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• v.15 no.3
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• pp.283-288
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• 2006

Characteristics of the rootstock formation and flower bud differentiation according to sowing time for production of the high quality rootstock in Chicory (Cichorium intybus L.) was investigated. The flower bud initiation was on the 17th of July after sowing in April, the 2nd of July after sowing in May, the 30th of July after sowing in June and the 1st of October after sowing in July. But they didn't differentiate after sowing in August and September. The days required from germination to flower bud initiation and accumulated temperature depended on the weather. If the outside air temperature was high, the days required were less, If the outside air temperature was low, the days required were greater, the accumulated temperature was similar to the days required in this experement, too. The rootstock sown from April to July wasn't good enough to be use because the flower bud differentiation was generated before harvestable weight. the weight of rootstock was sown in September wasn't heavy enough in weight because the outside air temperature was too low for it to grow well. The plant grows slow and steady through out winter. The rootstock sown in August was havestable 200g in 90 days after sowing before the flower bud differentiated. The best sowing time for the production of high quality rootstock of Chico in the climate of Korea is researched to be August.

• Journal of the Korean Institute of Landscape Architecture
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• v.26 no.3
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• pp.258-266
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• 1998

The purpose of this study is to investigate the actual conditions, to find problems, and to present an improvement plan of interior landscape in the subway stationis. Moreoiver, it will presume the possibilties to develop the subway and ways to utilie underground space effectively. The results are summarized as follows A light intensity was recorded 0-100 Lux as the lowest light and 500 Lux below as the highest in 61 subway stations. An average temperature of 12 $^{\circ}C$and an air humidity of 38% were recorded over a 4 month period from January to April, but includes a drastic variaton between -8.5$^{\circ}C$ and 21.5$^{\circ}C$. Soil acidity of pH 7 below and soil moisture of 1-2 wet degree were apeared in subway stations mostly. Plant forms consisted of artificial flower & flower. Plant species were recorded at a total of 54 species and appeared in the order of Araucaria heteropylla, Ophiophogon jaburan, Aspidistra elatior cv. 'Asahi' and Hedera helix. Plant height was, for the most part, below 0.5m. Plant species that was fined of conditions were Palm, Camellia japonica, Araucaria heterophylla as a high plant, dracaena fragrans, dracaena deremensis cv. Wakneckii as a middle plant, and Ophiopogon jaburan, Hedra helix, ytomium falcatum, Aspidistra elatior cv. Asahi as a low plant. It used to water materials such as small pool, small cascade, water cycles and natural materials such as natural rock, small rock, sand, bark and animal materials such as squirrels, birds, goldfish as an object for plants in the subway stations. From these actual conditions, First of all, It must make up physical environments such as light, temperature humidity, soil for plant growth, and is important to chooce suitable indoor plants and draw up systematic management in the subway environments. Also, it change plants frequently and uses variable objects for subway stationi individuatism, Moreover, indoor plants with strong environmental adaptation abities such as shade tolerance, drought tolerance and cold tolerance need to develope variable species possibly. If these improvements occur, utilization and amenity of subway stationis will increase, according to the use of interior landscape.

• Journal of the Korean Society of Tobacco Science
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• v.3 no.1
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• pp.49-57
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• 1981

To obtain genetic information for breeding aromatic tobacco, broad sense heritabilities, phenotypic, and genotypic correlations were obtained for the following characters : days to frowert, plant height, number of leaves, leaf shape and nicotine. Six pure line varieties and the first and second generations of 5 crosses among them were employed in this study. The heritabilities for number of leaves and nicotine were very high in pure line varieties. However, the heritabilities for days to flower and yield were low in six varieties as well as in F2. Genotypic correlations had higher values than phenotypic did. Heritabilities calculated from segregating generations were lower than those from pure varieties, regardless of crosses involved. Positive phenotypic correlations between yield and plant height were observed in all crosses. Same phenomenon was observed with correlations between days to flower and number of leaves. The genotypic and phenotypic variances and covariances entering into the computation of correlations were used to construct the seletion indices for yield. The use and limitation of selection index was also discussed.