국내에서 수집된 버뮤다그래스의 입지환경 및 형태적 특성

배은지,이광수,박남창,이상명,신현철,양근모 한국잔디학회 2011 Weed & Turfgrass Science Vol.25 No.1

This study was conducted to identify the morphological characteristics and variations level by site environment of native bermudagrass (Cynodon spp.) from costal and island region in South Korea. Soil chemical properties and morphological characteristics were investigated. There were significant differences in plant height,leaf width, leaf length, cotton on leaf blade, stolon, and number of seed per spike depending on where they were collected from natural habitat. We have discovered a variety of variation among the investigated traits in Korean native bermudagrass ecotypes. There were broad leaf and fine leaf types of native bermudgarass in S. Korea. Adaptability was in very high on inadequate environment in bermudagrass with broad leaf types, it has also been suggested that management worth in terms of use. These results may provide basic information for bermudagrass breeding development and the collected types during this investigation would be worth being preserved as genetic resources for further breeding purposes. 본 연구는 국내 해안 및 도서지역에 자생하고 있는 버뮤다그래스를 지역별로 수집하여 입지환경에 따른 형태적변이 정도를 알아보고자 수행되었다. 이들 입지환경, 토양의 화학성과 형태적 특성을 조사하였다. 수집된 자생지에따라 초장, 엽폭, 엽장, 잎털, 포복경 및 화수당 종자수 등에서 큰 변이를 보여 조사 형질 간에 다양한 변이를 보이는 것을 확인할 수 있었다. 광엽과 세엽 특성의 버뮤다그래스가 존재하고 있었으며, 광엽형의 버뮤다그래스의 경우 열악한 환경에서의 적응성이 매우 높아 중·저관리의잔디면에 이용 가치가 높을 것으로 생각된다. 상기 입지환경과 형태적 특성 조사 결과 및 수집된 유전자원들은앞으로 유전자원으로서 보존 가치가 높으며, 유용유전자를 보존할 수 있는 체계가 마련되어야 할 것으로 판단된다.

한반도에 자생하는 한국잔디류(Zoysia spp.)의 분포 및 형태적 특성

배은지,박남창,이광수,이상명,최준수,양근모 한국잔디학회 2010 Weed & Turfgrass Science Vol.24 No.2

This study focuses on investigating morphological characteristics and variations level in native zoysiagrasses from costal regions and islands in South Korea. In addition, this were collected to conserve germplasm for the breeding of zoysiagrass. One hundred fifty-nine of native zoysiagrasses were collected from 16 different cities and districts. There were morphological evaluations, including plant height, leaf width, leaf length, leaf angle,seed length(SL), seed width(SW), SL/SW ratio and number of seed per spike in native zoysiagrasses. Type of Z. japonica, Z. sinica, Z. macrostachya and Z. matrella showed significant variations in plant height, leaf length, leaf angle and number of seed per spike depending on where they were collected from. On the other hand, little variation were found in leaf width, seed length, seed width and SL/SW ratio. We have discovered a variety of variations among the investigated traits in hybrid zoysiagrass. These results can be used as basic information for development of zoysiagrass breeding.

직업적응훈련이 장애인의 인지능력에 미치는 효과에 관한 연구

배은지,이문정 대구대학교 특수교육재활과학연구소 2005 再活科學硏究 Vol.23 No.2

The purpose of this study was to evaluate the effects of work adjustment training for improving cognitive abilities of individuals with disabilities. The degree of changing on cognitive abilities was tested on the effects of changes between before and after that the work adjustment training program for individuals with disabilities. The results were utilized as measurement tools for the improvement of work adjustment training for individuals with disabilities. The followings was the findings obtained through date analysis in this paper. First, as the result of t-test, this verified that work adjustment program has positive effects on increasing the attention, discrimination, reasoning, perception and cooperation of students with disabilities. Second, it was found to significantly affect a sub-factor of attention (middle score of the reaction time), a sub-factor of reasoning (the number of correct answer), a sub-factor of discrimination and perception (the accuracy). Also, a sub-factor of coordination (total average time, error time, percentage error time, and ideal range time) were found to significantly like that. On the other hand, it was not found significantly to influence on a sub-factor of attention (the correct), a sub-factor of reasoning (performance speed), a sub-factor of perception and discrimination (perception speed). 본 연구의 목적은 직업적응훈련이 장애인의 인지능력에 미치는 효과를 알아보고자 대구대학교 재활과학대학 직업재활 임상실습실 훈련생들을 대상으로 직업적응훈련프로그램 실시전과 실시후 인지능력의 변화정도를 파악하였으며, 그 결과는 다음과 같다. 첫째, 인지능력 요인 변화에 있어서 직업에서 요구되는 중요한 인지요인인 주의집중력, 변별력, 추리력, 지각력, 협응능력은 긍정적인 변화가 있는 것으로 나타나 직업훈련프로그램이 인지능력 향상에 긍정적인 영향을 미치고 있다. 둘째, 주의집중력의 하위요인인 반응시간의 중앙값과 변별력, 지각력의 하위요인인 정확도, 추리력의 하위요인인 정답수, 협응능력의 하위요인인 총 평균시간 및 평균오류시간, 퍼센트 오류시간, 이상적 범위시간은 유의미한 차이가 나타났으나 그 외의 주의집중력의 하위요인인 정답과 변별력, 지각력의 하위요인인 인지속도, 추리력의 하위요인인 수행시간에서는 통계적으로 유의미한 차이가 나타나지 않아 일부 하위요인은 직업적응훈련프로그램의 효과가 없는 것으로 나타났다.

한국잔디의 재배기간 중 생육과 무기성분 함량 변화

배은지,이광수,박용배,이상명,양근모,허무룡 한국잔디학회 2013 Weed & Turfgrass Science Vol.2 No.1

This research will be utilized as a base line data by researching on growth and the accumulation of inorganic nutrients during the cultivation period of zoysiagrass and also to establish a cultivation strategy of zoysiagrass. It involves the management such as fertilizer and mowing which ultimately led to the difference of growth and accumulation of inorganic nutrients. The accumulation of inorganic nutrients after mowing, the amount of accumulation was small when compared to the amount lost for the shoot, rhizome and root. Difference in the accumulation of inorganic nutrients, but as for K, Ca and Mg accumulation it shows similar aspects to N accumulation. The orders of inorganic nutrients in zoysiagrass were N > K > P > Ca > Mg. The characteristics of inorganic nutrients absorption of such zoysiagrass acts as the foundation of cultivation, and in the aspect of making decisions on the fertilization amount and soil management, it is closely related to the requirement on nutrients. In order to increase the productivity based on the zoysiagrass's growth and density rate improvement, accumulation of inorganic nutrients per growth period needs to be analyzed, and supplying nutrients in an efficient method suitable to the growth period is advisable, so such basic research was necessary. 본 연구는 한국잔디의 재배기간 동안 생육 및 무기성분축적량을 조사하여 한국잔디의 재배전략을 수립하는데 기초자료로 활용하고자 수행하였다. 한국잔디의 경우 다른작물과 달리 시비와 잔디깎기 등과 같은 관리에 따라 생장 및 무기양분 축적에 차이가 있었다. 잔디깎기로 인해부위별로 무기양분이 손실되는 양에 비해 축적되는 양이적었다. 무기양분 축적 차이는 있었으나 K, Ca, Mg은 N과 비슷한 양상을 보였으며, 무기양분의 축적 순서는 N >K >P >Ca >Mg 이었다. 이와 같은 한국잔디의 무기양분축적 및 흡수특성은 재배의 기초로서 시비량의 결정이나토양관리 면에서 각 무기양분에 대한 요구성과 서로 밀접한 관계가 있다. 한국잔디의 생육 및 밀도율 향상에 따른생산량을 늘리기 위해서는 생육시기별 무기양분 축적 파악을 통해 생육시기에 맞추어서 효율적으로 양분을 공급하는 것이 바람직하므로 그에 따른 기초 연구가 필요할것으로 판단되었다.

입지환경에 따른 자생 중엽형 한국잔디의 형태적 변이 및 특성

배은지,이광수,한은희,박용배,이상명,허무룡 한국잔디학회 2013 Weed & Turfgrass Science Vol.2 No.2

It is important for genetic resources to collect and identify in native medium-leaf type zoysiagrasses species distributed in Korea. This study was conducted to investigate morphological variation and characteristics of native medium-leaf type zoysiagrasses from coastal, island and inland regions in Korea. Among them, 75 collected lines was confirmed to have various morphological variations, accessions were classified into 2 main based group coastal and inland regions by morphological characteristics and site environment. Group I included Z. sinica type, this group showed 3.7 mm in leaf width, 29 in number of seed per spikelet and 5.0 mm in seed length. Group II included Z. japonica type, this group showed 4.4 mm in leaf width, 42 in number of seed per spikelet and 3.5 mm in seed length. There is a need for additional research on growth characteristics and the molecular level for the introgressive hybridization between species which confirmed that cross-pollination is possible due to protogyny. The individuals showing variations should be preserved as valuable genetic resources for the expansion of variations in zoysiagrasses, and the results of this investigation on the genetic resources collected will be highly valuable in breeding high quality turfgrass.

들잔디 재배지에서 규산질비료 살포 효과

배은지,김충열,윤준혁,이광수,박용배,Bae, Eun-Ji,Kim, Chung-Yeol,Yoon, Jun Hyuck,Lee, Kwang-Soo,Park, Yong-Bae 한국잡초학회 한국잔디학회 2018 Weed & Turfgrass Science Vol.7 No.3

들잔디의 품질과 줄기 밀도 향상을 위한 적정 규산질비료 시비량을 구명하기 위하여 본 연구가 수행되었다. 2012년부터 2014년까지 3년간 들잔디 재배지 포장시험을 수행하였다. 지상부와 지상 포복경의 생체중과 건물중, 지상부 줄기 개수, 지상 포복경 길이 등은 규산질비료 100, 200과 $400kg\;10a^{-1}$로 시비량이 증가함에 따라 수치가 증가하였다. 그러나 규산질비료 시비량 200과 $400kg\;10a^{-1}$ 처리구간에는 통계적으로 유의적인 차이를 보이지 않았다. 규산질비료 시비량이 증가할수록 토양 내 pH, EC, 토양 내 유효규산 함량이 높아지는 경향을 보였다. 들잔디 생육 증가 및 토양의 화학성을 고려한 적정 규산질비료 살포량은 $200kg\;10a^{-1}$로 판단되었다. This study was conducted to find out the optimum silicate fertilization for improving the quality and density of zoysiagrass (Zoysia japonica Steud.), the growth of zoysiagrass and changes in chemical properties of soil in field experiments treated with different levels of silicate fertilizer during 3 years from 2012 to 2014. An increase in the silicate fertilizer from 100, 200, to $400kg\;10a^{-1}$ led to a significant increase in the fresh and dry weight of shoots and stolons, the number of shoots and length of stolon, but were not significantly different between 200 and $400kg\;10a^{-1}$. Moreover, soil pH, EC and the contents of available $SiO_2$ were increased as the rate of silicate fertilizer application increased. Thus, these results demonstrated that the silicate fertilizer rate for maximum growth of zoysiagrass was $200kg\;10a^{-1}$ in consideration of improving growth of zoysiagrass and the chemical property of the soil.

혈액액비 시비에 따른 몇 가지 채소묘의 생육반응

배은지,김병운,김미진,권송희,최지환,나해영 인간식물환경학회 2015 인간식물환경학회지 Vol.18 No.1

These experiments were performed to investigate the effects of the fertilization of vegetable seedlings with blood fertilizer on the seedlings’ growth and quality. Tomatoes, hot peppers, and leaf mustard seeds were sown in artificial soil with the conventional fertilizer, without fertilizer, and with blood fertilizer to analyze the changes in the growth of vegetable seedlings. When tomato was sowed in the artificial soil with the conventional fertilizer, the following highest values in the plant height, fresh weight, and leaf width were obtained: 20.56 cm, 51.16 g, and 6.12 cm, respectively. However, the total numbers of the leaves were 14.98, 9.24, and 18.15 in the artificial soil with the conventional fertilizer, the artificial soil without fertilizer, and the artificial soil with the blood fertilizer, respectively. The hot pepper seedlings sown in the artificial soil with the conventional fertilizer grew best in terms of their height (9.13 cm), fresh weight (30.26 g), and leaf width (2.21 cm). The greatest number of hot pepper leaves was obtained from the soil with the blood fertilizer (8.21), compared with the hot pepper seedlings sown in the artificial soil with the conventional fertilizer (7.92) and those sown in the artificial soil without fertilizer (5.12). The leaf mustard showed the highest overall results from the artificial soil with the conventional fertilizer, and showed insignificant results from the soil with the blood fertilizer. Overall, the best seedlings were obtained from the artificial soil with the conventional fertilizer, but the effect of the blood fertilizer treatment was the best in terms of the number of leaves of the hot pepper and tomato. This study suggested that environmental pollution caused by slaughterhouse waste can be reduced by using the blood of livestock as a fertilizer, instead of the conventional fertilizer, to produce environment-friendly organic seedlings.

백워드 설계를 적용한 국어과 교육과정 재구성 방안 연구 - IB 교육과정의 단원 설계를 중심으로 -

배은지 한국어교육학회 2020 국어교육 Vol.0 No.169

In this study, I proposed a plan to reconstruct the Korean language curriculum based on the IB's unit design in order to realize the competency-based curriculum at the teacher level and to encourage active teacher-level reconstruction of Korean language curriculum. IB's unit design encourage active teacher-level reconstruction of curriculum by respecting teachers' autonomy and professionalism. It also has the advantage of systematically connecting objectives and assessments and optimizing learning content based on a backward design model. Therefore, this study developed capacity-based curriculum reorganization plan at the teacher level using the IB's unit design and applied it to the 2015 curriculum. This has the following advantages. First, capacity-based curriculum at the teacher level can be realized by having the criteria reconstructed based on competency. Second, teacher-level curriculum reconstruction is activated by providing a systematic curriculum reorganization framework. Third, unit design based on the backward design ensures optimal learning content and consistency of objectives and assessments.

Silicon Significantly Alleviates the Growth Inhibitory Effects of NaCl in Salt-sensitive ‘Perfection’ and ‘Midnight’ Kentucky Bluegrass (Poa pratensis L.)

배은지,이광수,허무룡,임채신 한국원예학회 2012 Horticulture, Environment, and Biotechnology Vol.53 No.6

The study was conducted to clarify the effects of silicon on the salt-sensitive ‘Perfection’ and ‘Midnight’Kentucky bluegrass (Poa pratensis L.). The 400 mM NaCl treatment reduced shoot length, fresh and dry weight of shoot and root as well as relative water content and chlorophyll and carotenoid content in both cultivars. The NaCl caused an increase in electrolyte leakage, malondialdehyde concentration and H2O2 in both cultivars. This physiological interferences and visually noticeable disturbances in Kentucky bluegrass were significantly alleviated by the addition of silicon after salt stress. In ‘Perfection’, for example, 0.1 mM silicon application after NaCl treatment significantly increased in the shoot length by 48%, the fresh weight of the shoot by 72%, the relative water content by 61%, and the total chlorophyll content by 57%. Compared to the NaCl-only treatment, significant reduction in the electrolyte leakage and the concentration of malondialdehyde and H2O2 were observed in silicon treatment.

뽕나무 숯 처리가 Kentucky Bluegrass의 염해에 따른 생육과 생리적 반응에 미치는 영향

배은지,정성우,박남창,이광수,신현철,허무룡 한국잔디학회 2011 Weed & Turfgrass Science Vol.25 No.1

This research was conducted to determine the effect of the pre-treatment of mulberry charcoal on the salt tolerance response in Kentucky bluegrass ‘Perfection’. As this results, 400 mM NaCl treatment reduced turf growth such a fresh and dry weight, and induced physiological damages like decreased chlorophyll content and increased electrolyte leakage. The pre-treatment of mulberry charcoal, however, mitigated those growth and physiological responses associated with NaCl stress, regardless of the concentrations of charcoal solution. Furthermore, it was observed that higher K ion concentration by mulberry charcoal pre-treatment reduced Na ion in shoot. This research suggests to be a possibility of planting turf grasses in reclaimed land or higher salt accumulated area using a mulberry charcoal treatment. 본 시험은 뽕나무 숯이 염해의 내성에 미치는 영향에대해 알아보고자 한지형 잔디인 Kentucky bluegrass를 공시하여 수행하였다. 잔디의 생체중과 건물중 등의 생육은NaCl 400 mM의 처리에 의해 크게 억제되었으며 NaCl처리에 의해 엽록소 농도의 저하와 전해질의 누출상승 등생리적 장해를 초래하였다. 이러한 생육의 억제와 생리적장해는 뽕나무 숯의 전처리에 의해 크게 경감될 수 있었다. 뽕나무 숯의 전처리는 K이온의 흡수를 도와 Na이온을 체외로 배출시키는 것을 확인하였다. 본 시험의 결과뽕나무 숯의 처리는 염해에 약한 잔디류의 간척지 및 염류가 높은 토양에서 식생조성이 가능 할 것으로 사료되었다.