• Korean Journal of Plant Resources
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• v.9 no.2
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• pp.157-163
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• 1996

This study was carried out to control the decrease of yield and the deterioration of quality of Angelica gigas roots by bolting. This phenomenon resulted from lignificartion and dwarfishness of roots because of bolting formed for inflorescence and fruition. Seedlings were grown for 60,90 and 120 days in nursery of the green house, and transplanted in main field to compare with traditional seedling that grew for 1 year. Growth of the petiole length compare with length and leaf width of aerial parts in nursery showed a remarkably progress, and root characters as root length, root diameter and root weight grew more vigorously in the order of nursery periods. Bolting was not entirely formed in plots transplanted the seedlings which grown for short-time; 60, 90 and 120days, but showed the high bolting rate, 64.3%,in traditional seedling plots. Yield was higher in plots that transplanted short-time growing seedlings than that transplanted traditional seedlings, and among 3 kinds of nursery periods yields were high in the order of nursery periods. For the increase of yield and decrease of bolting rate, it was needed to transplant small seedlings of 3-4g/plant which grew in nursery for 90-120 days.

• Child Health Nursing Research
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• v.20 no.4
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• pp.304-313
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• 2014

Purpose: This study was done to identify the level of knowledge, attitude and performance ability in CardioPulmonary Resuscitation (CPR) and provided data for the development of an education program to improve CPR performance ability of nursery teachers. Methods: The participants were 220 nursery teachers working in daycare centers in A city located in G province. Data were collected during July, 2013. Results: The mean scores were 45.88 of 100 for knowledge, 3.69 of 5 for attitude, 2.65 of 5 for performance ability. There were significant differences in knowledge and performance ability according to education experience. There were positive correlations between knowledge and performance ability, and between attitude and performance ability. Factors affecting CPR performance ability were knowledge (${\beta}=.133$), attitude (${\beta}=.327$), and education in CPR (${\beta}=.343$). These factors explained 29.4% of the variance in CPR performance ability. Conclusion: Results indicate that nursery teachers' knowledge, attitude and CPR performance ability were not sufficient enough to perform accurate CPR in an emergency. Therefore, to improve performance ability of nursery teachers to carry out CPR in a cardiac arrest emergency of a child, educational strategies that focus on increasing knowledge and attitude need to be developed.

• Journal of Korean Society of Forest Science
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• v.107 no.1
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• pp.16-24
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• 2018

This study was investigated to select superior population and clones of Salix gracilistyla for promoting woody biomass resources through creating of short rotation coppices (SRC). Plant materials were collected from seven different population groups of S. gracilistyla and planted at two different nursery sites in Chuncheon and Yongin. Height and root collar diameter showed statistically significant differeces among population, nursery, and annual growth for three years (p<0.01). Aboveground biomass was harvested to investigate dry weight after 3 years from planting, the Youngwol population showed the highest yield as $4.8kg\;DW\;plant^{-1}$ in Chuncheon nursery which was more than double yield compared to the other nursery planted plants. However, Hongcheon and Wonju populations as $3.3kg\;plant^{-1}$, showed the best yield in Yongin nursery. In addition, there was a significant difference between collected populations and nurseries. But there was statistically significant different interaction between population (Pop) and nursery (Nur) (F value = 3.51, p<0.01). Therefore, the superior populations selected by this experiment could be cultivated as an excellent variety for woody biomass resources through the clonal test.

• Journal of Korean Society of Forest Science
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• v.104 no.1
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• pp.43-49
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• 2015

The production of high quality seedlings is a very important phase in silvicultural systems for successful reforestation or restoration. The purpose of this study was to quantitatively measure both growth performances and nutrient responses of Fraxinus rhynchophylla, Pinus densiflora, and Pinus koraiensis seedlings, which are commercially planted in Korea, according to the different types of soil improvement treatments. We applied soil brought (hereafter 'brought'), subsoil inversion (hereafter 'subsoil'), and mixture of brought soil with soil on nursery bed (hereafter 'mixing') in a permanent national nursery. Silt and clay contents were the highest at the subsoil treatment and organic material, soil nitrogen and phosphorus concentrations were the lowest at the brought treatment. The growth of F. rhynchophylla was the lowest at the subsoil treatment, but there were no significant differences among treatments. There were significant differences in only root nutrient concentrations of F. rhynchophylla among treatments: nitrogen, phosphorus, and potassium concentrations were the lowest at the subsoil or brought treatment. Mixing treatment increased N contents with deduction of N concentrations ('dilution') because of more dry weight increase compared with the amount of N uptake. This study suggested mix of brought soil with soil on a nursery bed in a permanently used nursery can economically be an effective technique to improve soil quality.

• The Korean Journal of Soil Zoology
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• v.6 no.1_2
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• pp.37-44
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• 2001

Scarabaeids and white grubs were investigated at Halla arboretum and nursery in Jeju province in 1999 and 2001. Scarabaeid pests were surveyed from 14 tree species of 12 families at Halla arboretum in Jeju in March, 1999 and from 55 species of 27 families in March and September, 2001 and from Taxus cuspidata at nursery in Seoguipo in March, 1999 and 18 tree species of 9 families at the same nursery in March and September, 2001. Six species of white grubs and scarabaeids were collected from Halla arboretum. At Halla arboretum, Holotrichia niponensis was collected from 28 tree species of 21 families, H. diomphalia from 27 tree species of 20 families, and an unidentified white grub from 27 tree species of 19 families. Maladera orientalis was collected from 4 tree species of 4 families and Aphodius sp. and Adoretus tenuimaculatus from Punica granatum and Carpinus sieboldiana. At Halla nursery in Seoguipo, H. niponensis were collected from 9 tree species of 6 families and H. diomphalia from 10 tree species of 6 families. White grub of Minela testaceopes was collected from Ternsstraemia japonica. H. niponensis, H. diomphalia and an unidentified white grub were dominant species out of collected white grubs and scarabaeids and these were collected from Cinamomum camphrora. H. niponensis was the most serious pest on T. cuspidata.

• Korean Journal of Plant Resources
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• v.23 no.1
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• pp.19-24
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• 2010

This study was conducted to clarify effects on the germination, survival rate of seedlings, growth and variation induction of variants in gamma rays irradiated seed of lilac pink (Dianthus superbus var. longicalycinus) and nursery spiraea (Caryopteris incana). Seed germination and its germination rate were delayed over 90 Gy for lilac pink and 80 Gy for nursery psiraea. Fifty percent lethal time (LT50) level for lilac pink and nursery psiraea were 150 Gy and 100 Gy, respectively. Lilac pink and nursery psiraea were grown dwarf over 120 Gy treatment. We have produced 17 variants of lilac pink in $M_1$ generation, and selected the promising 4 variants in $M_2$ generation. We have also made 7 variants of nursery psiraea in $M_1$ generation, and selected the favorable 8 variants in $M_2$ generation.

• Korean Journal of Comparative Education
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• v.27 no.4
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• pp.285-310
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• 2017

This study reviews recent changes in parenting support policy in Japan, and examines the roles and functions of day-nursery as the base for parenting support in the local community. The purpose of this study is to provide implications for the direction of the parenting support policy and child-care facilities for the local communities in South Korea. The analysis concentrates on the official national reports such as the Declining Birthrate White Paper and Japan's National Guidelines for Care and Education at Day Nursery by the Japanese Cabinet Office. The study finds that the Japanese government has introduced comprehensive medium and long-term policies for all the members of the community with recognizing the changes in the domestic and foreign child-rearing environments and social needs. These policies have also helped to improve the social awareness of parenting. The role of the day-care center has been raised as a significant part of the support for child-rearing in the local community due to the revision of the Child Welfare Act for nursery school teachers in 2001 and the official announcement of Japan's National Guidelines for Care and Education at Day Nursery in 2008. The study also concludes that the social responsibility of the nursery center has been strengthened by being utilized as a public resource for the community. From the findings, we can elicit the conclusions and implications that the roles and functions of child care centers as a significant base for parenting support in the local communities need to be considered. We also listen to the voices of stakeholders such as parents and staff of child care centers. Last but not least, we would understand the social role and importance of bringing up children by cooperation of the community members, and promote the role of child care centers as a central place providing and communicating information on child-rearing in the local communities.

• Proceedings of the Korean Society of Crop Science Conference
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• 2018.10a
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• pp.71-71
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• 2018

• Korean Journal of Agricultural Science
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• v.4 no.1
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• pp.94-104
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• 1977

In order to investigate the effects of mechanical transplanting on the rice, four rice varieties including Jo-saing Tongil were planted in case nursering bed for three times with 10 days interval beginning from April 16. Fourty days old seedlings were transplanted with rice-transplanter, and growth habits of seedlings in bed and rice plants in main field and yield were examined and summerized as follows: 1. The plant height and number of leaves of the 40 days old seedling in case nursery bed were appeared to be less than those of seedlings grown in ordinary nursery bed. In case nursery, the plant height and number of leaves of seedlings grown in case nursery were apparently higher than those of seedlings grown in upland case nursery. 2. The root of 40 days old seedlings were cut to investigate the rooting ability of seedlings, and the rooting ability of the seedlings grown in the case nursery bed were apparently lower in the rooting ability compared with the seedlings grown in ordinary nursery bed. The rooting ability of the seedlings grown in the lowland case nursery was higher than that of the seedlings grown in the upland case nursery. 3. The tip of leaves of the varieties derived from Indica type were becoming yellow and yellow-red in color 25 to 30 days after planted in the case nursery bed. Those varieties was almost stopped growth. 4. The seedlings transplanted by transplanter had shown more than five to seven days of delay in rooting, compared with the seedlings transplanted by ordinary method. The heading dates was delayed five to seven days when transplanter was used, even though the delay of heading dates was a little different depending on the varieties. 5. The yields of unhulled rice were a little lower than that of Yusin variety which was hand planted. When mechanically transplanted, the yield of Tongil variety was highest in the plot where seedlings were transplanted on May 26. When transplanted on June 15, Milyang#15 was highest in yield, indicating the importance of varietal selection in mechanical transplantation. 6. The rice transplanter could transplant from 73 to 108 seedlings per $3.3m^2$. If the seeds of rice were evenly planted in the bed, the two-row rice transplanter could be used five to six times more effectively with less than one percent of missing plant compared with the hand transplanting. This suggests that rice transplanter could be utilized in the mono cropping area. 7. Since the time of transplantings in the double-cropping area is rather limitted, mechanical transplantation might be possible without reducings yield providing better adapted varieties and improved case-nursery techniques.

• The Korean Nurse
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• v.13 no.5 s.73
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• pp.92-92
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• 1974