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손재근 한국관광정보학회 2002 觀光情報硏究 Vol.- No.11
As a living condition improves, people's spare time increase day by day and methods of employing own leisure time are getting various. According to this, the demand of satisfaction with desire for leisure is also highly increasing. For people, satisfaction with this desire is regarded as means which can tell the quality of one's life. However, even though we now live in the time of citizen's welfare tourism, recreation condominiums are still insufficient to satisfy people's desire, they are the best for family size and they have various subsidiary facilities for leisure like recreation town. According to general people's preference, among many accomodations recreation condominiums are most popular. Present condominium policies which are rather nonintervene and indifferent must be changed to be intervene and supportable, so everybody can use them. There are yet many problems about recreation condominiums such as deficiency in supply of them, expensive fee, regional concentration, and dissatisfaction with service and using them. To solve these problems and make them close people, following policies from the result of research are considered. First, the prejudice that they are luxurious leisure facilities has to be changed and policy support is required. Second, government budget must cover SOC investment to outskirts of them. Third, to construction and management of them, financial support mest be guaranteed by policies. Forth, many people have to be encouraged to use them. As mentioned above, for growth of condominiums and settlement of citizen's welfare tourism, we have to popularize condominiums, relieve many restrictions, and also financial support of state level is required, In the past we just enlarged a market scale, but now self-growing atmosphere in needed. We have to interest many medium enterprises in this business and establish a differential marketing strategy, so we can expect success in the business.
벼 약배양에서 배지조성이 Callus 및 식물체분화에 미치는 영향
孫再根,吳秉根,李壽寬 韓國作物學會 1985 Korean journal of crop science Vol.30 No.3
벼 약배양에 있어서 기본배지 및 배지내 첨가물질이 callus유기와 식물체분화에 미치는 영향을 구명하기 위하여 시험한 결과는 다음과 같다. 1. callus 유기 및 식물체분화는 N6기본배지에서 가장 높았으며 Indica형 품종보다는 Japonica형 품종에서 그 효율이 더욱 높게 나타났다. 2. 약치상후 callus유기는 기본배지의 종류에 관계없이 20~40일 사이에 90% 이상이 유기되었다. 3. 식물체분화는 callus유기배지의 영향을 크게 받으며 Miller 배지에서 유기된 callus의 식물체분화는 N6나 MS배지에 비하여 저조하였다. 4. N6배지내에 포함된 질소원중 (NH4 )2 SO4 의 함량을 31.5mM로 조절하였을 때 callus 및 식물체분화율이 향상되었다. 5. 생장조정제 첨가에 있어 2,4-D단독 처리보다는 NAA 2mg/ 에 Kinetin 1mg/ 를 혼용 처리하였을 때 callus유기 뿐 아니라 식물체분화율도 향상되었다. 6. Indica형 품종의 callus유기에 대한 DL-Ala-nine 첨가효과는 약을 저온처리하였을 때 높게 나타났다. Effects of media and its components on callus induction and plant regeneration were studied to increase the cultural efficiency in rice anther culture. The N6 basic medium gave better results in callus induction than those of MS or Miller. The medium used for callus induction affects the plant regeneration. The frequency of plant regeneration from callus grown on Miller basic medium was lower than those of N6 or MS. Most of calli derived from anthers, above 90%, were induced from 20 days to 40 days after anther inoculation. The cultural efficiency of modified N6 basic medium which was composed of 31.5mM KNO3 and 1.75mM(NH4 )2 SO4 as nitrogen sources was higher than those of N6 basic medium. Combination of NAA and Kinetin showed better results than that of 2, 4-D only in cultural efficiency. Effect of DL-alanine on callus induction in Indica variety, IR40, showed better response in the anthers pretreated for 6 days at 12~circC .
孫再根,李相哲 韓國作物學會 1997 Korean journal of crop science Vol.42 No.3
벼 품종의 오존 저항성 판단을 위한 시험에서 오존의 처리농도는 0.3 ppm이 0.1 ppm보다 뚜렷한 결과를 보였고, 처리시간은 2∼4시간이 알맞은 것으로 나타났다. 묘대일수에 따른 저항성 정도는 파종후 3주까지는 생육이 진전될수록 높아지는 경향이었으나 3∼5주간에는 큰 차이가 없었다. 인디카와 통일형 품종들이 자포니카 품종보다 저항성이 높은 경향이었고, 자포니카 품종 중에서 장안벼외 7 품종은 높은 저항성을 나타내었다. 벼의 생육시기에 따른 피해엽율은 간척벼는 유묘기에서 밀양 2003외 4 품종은 최고 분열기에서 가장 높게 나타났고 임실율은 수잉기 처리에서 가장 낮았다. The response of seventy-five rice cultivars to ozone (O3 ) were tested in the open-top chamber with ozone producing and monitoring system to determine the varietal difference of resistance to O3 stress. Ozone was produced by electrostatic discharge in oxygen and was monitored by UV absorption ozone analyzer. Difference in response of rice to ozone was more clearly appeared on rice plants treated for 2 to 4 hours at 0.3 ppm concentration of O3 . Varietal resistance of rice to ozone was more distinctly classified at 21- to 35-day seedlings compared with 14-day rice plants. Most of indica and Tongil(indica~times japonica) type rice cultivars were more resistant than that of japonica cultivars based on the leaf injury to O3 . Eight Korean cultivars belong to japonica groups showed highly resistant reaction to O3 . Ozone exposure during booting stage caused lower grain fertility than exposures during seedling, maximum tillering and heading stages of rice.