The effect of transplant age on vegetable growth characteristic in a cylindrical paper pot system

수찬,김시홍,김재경,Jae-Yun Heo,Ngoc Thang Vu,Ki Young Choi,김일섭,Dong Cheol Jang 한국원예학회 2021 Horticulture, Environment, and Biotechnology Vol.62 No.3

This study aimed to estimate the seedling performance of cylindrical paper pot (CPP) seedlings and to determine the optimaltransplanting age of CPP seedlings based on seedling vigor. The studied vegetables were cucumber, tomato, paprika,and two varieties of cabbage, and the younger seedlings were obtained by shortening their raising period by 10 and 20 dayswith CPP. At the same transplanting age, the size of CPP seedlings was smaller pre-transplant but increased to a similarlevel to the plug seedlings soon after transplanting. The growth curves of leaf area and dry weight of younger CPP seedlingsexhibited a steeper rise trend. The seedling vigor indicators, relative growth rate (RGR), net assimilation rate (NAR), weresignifi cantly increased in younger CPP seedlings of all vegetables, which were 10 or 20 days younger than plug seedlings. Thecompactness (CP) and seedling health index (SHI) of cucumber, and the leaf area ratio (LAR) and specifi c leaf area (SLA) ofcabbage were signifi cantly increased when shortened by 10 and 20 days, while the CP and SHI of paprika were signifi cantlydecreased when shortened by 20 days. Our results suggest that CPP may prevent the seedlings from overstretching and canprovide a wild range of transplanting age choices to produce vigorous seedlings. Further, the seedling vigor indicators weresuccessfully used to determine the transplanting age of CPP seedlings. The optimal transplanting age of CPP seedlingsof tomato, paprika, and cabbage was 10 days younger than plug seedlings, whereas cucumber transplanting age could bedecreased by either 10 or 20 days.

Control of Stretching of Tomato (Lycopersicon esculentum Mill.) on Cylindrical Paper Pot Seedling Using High-Salinity Potassium Fertilizers

Chan Xu(수찬),Si Hong Kim(김시홍),Dae Hoon Kim(김대훈),Jae Kyung Kim(김재경),Jae Yun Heo(허재윤),Ngoc Thang Vu(넉탕부),Ki Young Choi(최기영),Il Seop Kim(김일섭),Dong Cheol Jang(장동철) (사)한국생물환경조절학회 2020 생물환경조절학회지 Vol.29 No.4

본 연구는 원통형 종이포트를 활용한 토마토 육묘시, 염스트레스를 활용하여 고온기 도장 억제가능성을 검토하기 위하여 수행되었다. 시험구는 K₂SO₄, KCl과 KH₂PO₄을 각 5, 10 dS·m<SUP>-1</SUP>로 처리하였고, 또한, 토마토 모종에 고염도의 칼륨을 처리하여 수분 및 저온스트레스 환경에서의 적응성 및 생존성을 조사하였다. 조사결과, 처리 농도가 높아질수록 지상·지하부 건물중, 옆면적, 순동화율 (NAR)이 감소하고, 경경과 충실도는 증가하였다. 수분 스트레스 처리 이후, 대조구는 심한 위조현상을 보였지만, KCl처리구는 양호하였다. 상대수분함량은 대조구에서 23%, KCl처리구에서 8% 감소 하였다. 또한, 대조구에 비하여 KCl 처리구는 저장시(9, 12 및 15°C) 모종의 손상 비율이 낮았다. 이와 같은 결과로 보아, KCl과 같은 고농도의 칼륨 처리가 원통형 종이포트 토마토 육묘의 도장 억제에 효과적이며 환경 스트레스 내성을 향상시키는 것으로 판단된다. This study was conducted to examine the potential of inducing salinity stress on cylindrical paper pot tomato seedlings to inhibit overgrowth. Potassium fertilizers, sulfate of potash (K₂SO₄), muriate of potash (KCl), and monopotassium phosphate (KH₂PO₄), were prepared as two solutions of (5 and 10) dS·m<SUP>-1</SUP> salinity level, respectively, to investigate the influence on tomato (Lycopersicon esculentum Mill.) seedling growth. We also investigated the adaptability and survivability of treated tomato seedlings with high-salinity potassium (10 dS·m<SUP>-1</SUP> KCl) to harsh environmental conditions (water deficit, low temperature, and storage conditions). Repeated addition of high-salinity level KCl, K₂SO₄, or KH₂PO₄ markedly decreased the dry matter of shoot and root, leaf area, and net assimilate rates (NAR) but increased the stem diameter of seedlings. Among the three sources, the relative growth rate of plant height (RGRH) was most sensitive to KCl addition; increasing salinity levels of KCl solution decreased the RGRH of seedlings. The compactness, which directly reflects the stocky growth index, increased in KCl or KH₂PO₄ treatments. After a week’s water deficit, severely wilted seedlings were observed in control seedlings (untreated with KCl), but no wilted seedlings were observed in the KCl treated seedlings, and the relative water content (RWC) of the untreated seedlings significantly decreased by 23 %, while that of the pretreated seedlings only decreased by 8 %. The increase in ion leakage of KCl treated seedlings at low temperatures was less than that of untreated seedlings. Furthermore, there was far lower damage proportion on pretreated seedlings at (9, 12, and 15)°C storage temperatures after 20 days, compared with on unpretreated seedlings. Our results suggest that high-salinity potassium fertilizer, especially KCl, is effective in preventing tomato seedling overgrowth, while it also improves tolerance.

Effects of Different Application Approaches with Diniconazole on the Inhibition of Stem Elongation and the Stimulation of Root Development of Cylindrical Paper Pot Seedling

Dong Cheol Jang(장동철),Chan Xu(수찬),Si Hong Kim(김시홍),Dae Hoon Kim(김대훈),Jae Kyung Kim(김재경),Jae Yun Heo(허재윤),Ngoc Thang Vu(넉탕부),Ki Young Choi(최기영),Il Seop Kim(김일섭) (사)한국생물환경조절학회 2020 시설원예‧식물공장 Vol.29 No.4

본 연구는 원통형 종이포트 토마토 육묘시 Diniconazole의 처리방법이 도장억제 및 근권발달에 미치는 영향을 검토하기 위하여 수행되었다. 그 결과, 엽면적, LAR, 초장, 충실도, 생체중, RGR 및 R/S 에서 시험구간 유의한 차이를 보였다. 동일한 농도를 처리했을 경우, 근권부와 지상부의 흡수도 차이로 인해 저면관수가 엽면살포에 비해 도장억제에 효과적이었다. 저면관수는 엽면시비의 10분의 1의 농도만으로도, 20~30%정도의 동일한 도장억제 효과를 얻을 수 있었다. 디니코나졸 처리에의한 근권부 반응이 흥미로웠는데, 저면관수시 총근장, 근권부피, 평균 근경 및 근단수가 증가하였다. 특히, 0.3mm 이하의 초미세근이 감소하고 0.3~0.6mm의 세근이 증가하였다. 따라서 원통형 종이포트 육묘시 저면관수를 하는 것이 기존 엽면시비에 비해 사용량이 적으면서도 도장억제 및 근권부 활착률을 높힐 수 있을 것으로 판단된다. This study was conducted to compare the effects of foliar spray and sub-irrigation of the triazole fungicide diniconazole on the regulation of stem elongation and to investigate the stimulation of root system development during the seedling stage. Comparing the two application approaches, there were significant differences in the leaf area, leaf area ratio (LAR), plant height, compactness, fresh shoot and root production, relative growth rate (RGR), and root to shoot ratio (R/S). At the same application concentration, the sub-irrigation showed a better retarding effect on growth than the foliar spray, because the PGR activity of diniconazole in root absorption was higher than that in shoot absorption. For reaching a target of 20% to 30% inhibition rate of stem length, foliar application concentration of diniconazole exceeded 10 , however, only approximately 1 was required in the sub-irrigation application. The root system of tomato seedlings responded strongly to diniconazole application. Total root length, root volume, root average diameter, and the number of root tips increased when diniconazole was sub-irrigation application at 1 . A reduction in fine roots (diameter range of 0 to 0.3 mm) and an increase in the roots with a diameter range of 0.3 to 0.6 mm was observed, and this may contribute to the increase in average diameter. The increase in root average diameter may be positive because root penetration increases with root diameter. Our results suggested that sub-irrigation maximized the PGR activity of diniconazole to enhance the retarding effect. And it also possible to enhance the tomato seedling root system by diniconazole stimulating with a lower concentration.

Cetylpyridium bromide의 존재하에서 산 염기 지시약의 해리상수

문수찬 부산대학교 1977 論文集: 自然科學篇 Vol.23 No.-

第4級 암모늄鹽과 有機리간드 및 酸性指示藥과의 反應 : 제4급 암모늄염과 유기리간드 및 산성지시약과의 반응

문수찬 부산대학교 1972 論文集: 自然科學篇 Vol.14 No.-

N.N-dimethylformamide 속에서 지방산의 알카리금속염의 이온평형

문수찬 釜山大學校 敎養課程部 1972 論文集(교양과정부) Vol. No.

용매추출 - 구형파폴라로그라피에 의한 물중의 미량 구리, 납, 카드뮴 및 아연의 정량

문수찬 부산대학교 1973 論文集: 自然科學篇 Vol.15 No.-

第4級 알킬암모늄鹽의 存在下에서 zincone에 依한 銅의 吸光光度定量 : 제4급 알킬암모늄염의 존재하에서 zincone에 의한 동의 흡광광도정량

문수찬 부산대학교 1972 論文集: 自然科學篇 Vol.14 No.-

페놀프타레인의 복색 반응속도에 미치는 cetylpyridium bromide 및 그 counter-ion의 영향

문수찬 부산대학교 1976 論文集: 自然科學篇 Vol.22 No.-

한문 글쓰기의 특성과 교육 방안 연구

배수찬 ( Su Chan Bae ) 한국작문학회 2005 작문연구 Vol.0 No.1

이 연구는 한문 글쓰기의 언어 운용 양상과 그에 나타난 세계관의 차이를 구체적으로 밝혀서 오늘날의 문법 및 언어 교육에 유용한 방안을 마련하고자 하였다. 그러기 위해서 당대의 어문 독해 자료인 한문에 대한 실증적이고 현상학적인 검토를 진행하였고, 그 결과를 근대 언어로 옮겨 내었다. 그 결과로 단어, 품사, 성분, 문장으로 이루어지는 근대적 글쓰기의 전제들을 비판해 보았다. 이들은 모두 문법에 해당되는 것들인데, 문법이란 한문 글쓰기가 중심이던 전근대에는 실제로 존재하지도 않았던 개념이다. 과거에는 문법이 없이도 얼마든지 글쓰기가 이루어지고 있었으며, 문법이 없다는 사실 자체가 인식되지도 않고 있었다. 이러한 ``한문식 글쓰기``는 오늘날의 작문교육에 거의 활용되지 않고 있다. 어법과 문장 구성 단위의 강조는 근대적인 음성 언어 모델이 언어의 중심이 되면서 새롭게 부각된 현상이며, 결코 보편적인 것이라고 보기 어렵다. 근대의 한계를 극복하는 고급의 언어 활동과 작문교육을 위해서는 이러한 관념에 얽매일 것이 아니라 창의적이고 확산적인 작문이 가능한 새로운 글쓰기의 도입이 요망된다. This thesis aims to clarify the mode of operating language system and world view of Chinese writing so that we can get ready the methodology useful enough to apply to grammar and language education these days. To attain this object, I studied Chinese writing which was the material of traditional language education positively and phenomenologically, and then translated the result of the study into contemporary terms. I criticized the propositions of modern writing which were composed under the modern linguistical terms as such:word, part of speech, component, sentence. This terms fell under the range of grammar, but grammar is only an idea which didn`t exist traditional society upon which the Chinese writing dominated. This society almost didn`t recognize grammatic knowledge, but writing activities were done without any difficulty resulting from the lack of this grammatic knowledge. The Chinese writing isn`t almost utilized in contemporary writing education. The emphasis on the grammar and unit of component of sentence is not universal but a casual occurrence which arose because of the dominance of the phonetics of a language these days. To overcome the limit of modern writing and to establish advanced language activities and writing education, we must not resticted by these modern linguistical rules, but introduce the new writing which can bring creative and diffusive writing to fruits.