• 한국양묘협회지
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• s.11
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• pp.20-28
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• 1983

• Korean Journal of Medicinal Crop Science
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• v.4 no.4
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• pp.271-276
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• 1996

This studies were conducted to basic information on growth characteristics and root yield in progeny the derived from different bolting years and to establish optimum seed production time in Angelica gigas. Plant height of early and mid-growing stages had decreased with each year increase in bolting year, but showed no significance in late growing stage at different bolting years. Root charac­teristics including root length, root diameter and dry root weight was slightly good and it had high root/ shoot ratio in third year seed production. respectively. Bolting rate showed that first year seed 38.1%, second year seed 10.4% and third year seed 1.2%, respectively. Therefore, optimum seed production time revealed third year seed for reduce bolting rate. Root yield at different bolting years showed average 1,690kg per hectare as fresh root weight on first year seed, 2,860kg on second year and 2,940kg on third year seed, respectively. A significant positive correlation was appeared between bolting rate and plant height in mid-growing stage. On the other hard, there was highly significant negative correlation between bolting rate and root yield.

• Current Research on Agriculture and Life Sciences
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• v.20
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• pp.9-18
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• 2002

A total of 31 C. chinense lines selected from 2000 screening were tested again for resistance to P. capsid but resistance was not found in tile lines. A total of 26 selections from Korean land races tested 2001 spring were tested again for resistance to P. capsici, KC180, KC230, KC195 and KC194 showed moderate resistance to P. capsid. However, it was apparent on the basis of horticultural characteristics that KC180 and KC230 had been naturally crossed with AC2258 and CM334, respectively. CM334 and AC2248 seed lots that were increased in different years were taken out and tested for resistance to improve their genetic purity because the resistant genetic resources have been showing some off-types in tile population. Off-types began to be found in 1992 seed lots and tile proportion and degree of tile offs was increasing with time up to 2001. Plants true to the type in 1992 seed lots were selected and their inbred seeds were mass produced in a net cage in the greenhouse. AC2258 included in the experiment together was uniform. In 1995 seed lots of CM334, plants with resistance to P. capsici and low or no number of lateral branching at cotyledonary axil, although they were off from tile original CM334, were found and selection was applied to breed lines fixed in tile characters.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.29 no.1
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• pp.62-66
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• 1984

One row of pollen parent to two rows of seed parent (1:2), 2:4 and solid (1:2) planting patterns (PP) were compared in seed parent densities of 3,500, 5,000 and 6,500 plants per 10 ares to determine effects of PP and plant density on growths of seed and pollen plants, and seed yield of seed parent of modified single cross corn hybrid. Planting pattern did not significantly affect agronomic characteristics of seed plant except ear number per 100 plants and seed yield which were greater in solid and 1:2 PP than in 2:4 PP. Significant PP x plant density interaction did not exist for agronomic characteristics of seed parent. In the seed parent, plant height and 100 kernel weight were not affected by plant density, but ear height, ear number per 100 plants, and kernel number per ear were linearly decreased with increased plant densities. Seed yield ranged from 330 to 460 kg per 10 ares and overall yield response to plant density was quadratic. Tassel length and spikelet number per tassel of the pollen parent were significantly affected by PP and plant density. Significant PP x plant density interaction existed for tassel length and spikelet number per tassel. Tassel length and spikelet number per tassel were greater in 1:2 and 2:4 PP compared to solid PP and were greatly reduced with increased plant densities in solid and 1:2 PP. The results indicated that 1:2 or 2:4 PP at around 5,000 plants per 10 ares for seed parent would be suitable for seed production of modified single cross com hybrid.

• TTA Journal
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• s.102
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• pp.21-24
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• 2005

우리 국민 10명 중 6명 이상은 '유비쿼터스'가 무엇을 의미하는가를 인지하고 있으며, u사회가 5~10년 내에 현실화될 것으로 내다보고 있다고 한다. 그만큼 우리가 살고있는 현재 e사회는 빠르게 u사회로 변화 발전해 가고 있다. 유비쿼터스로의 발전과정에서 주목받는 기술이 바로 전파식별(RFID)이며, RFID 기술에 주목하는 것은 다가올 디지털 융합, 유비쿼터스 시대의 첨병 역활을 할 것이기 때문이다. 또한 유비쿼터스 세상은 새로운 기술표준을 요구하고 있다. 통합과 호환성이 필요하기 때문이다. 이번 특집은 대규모 수요를 견인할 수 있는 국가적 프로젝트인 '모바일 RFID'의 산업 및 시장 활성화를 위한 표준화, 기술개발 동향 등을 중심으로 현황과 전망에 대해 관련 표준화를 주도하는 '모바일RFID포럼'의 채종석 운영위원장으로부터 들어본다(편집자주).

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2004.05a
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• pp.137-140
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• 2004

채종원관리를 효율적으로 관리하기 위하여 시설되는 저 규격도로는 대부분 비포장상태로 이용되는 경우 많다. 이는 강우에 의한 침식붕괴로 하류의 산림식생환경 및 수질환경 오염으로 연결될 위험성이 내포되어 있어 적절한 방법으로 사전에 방지할 필요가 있다. 본 연구에서는 환경과 친화적인 재료를 최대한 이용하여 개발된 목배수로를 내구성 강화를 검토하였던바 섬유질 포의 조절과 고무질의 성능 조절에 의한 검토로 현장에의 적용이 가능하였다.

• 건강소식
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• v.13 no.4 s.125
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• pp.33-35
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• 1989

• 한국양묘협회지
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• s.22
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• pp.7-14
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• 1994

• 한국양묘협회지
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• s.4
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• pp.53-57
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• 1976

• 어항어장
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• s.11
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• pp.70-75
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• 1990