• KOREAN JOURNAL OF CROP SCIENCE
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• v.28 no.3
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• pp.386-389
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• 1983

An experiment was conducted to establish the appropriate tranaplanting method of sesame seedlings. Covering of polyethylene film on nursery bed resulted in more adventitious roots and better growth after transplanting. Nursery soil showed the best results when it was mixed with the equal amounts of soil, sand and compost. The most healthy seedlings were raised by spot seeding of 5${\times}$5 cm distance and 4 cm bed-depth. Compared to direct seeding on June 15, sesame seeded on June 10 followed by transplanting on June 30 flowered 4 days earlier and produced more capsules per plant and 18% more seed yields.

• Asian Journal of Turfgrass Science
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• v.17 no.1
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• pp.13-17
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• 2003

This study was conducted to figure out the effect of KOB Soil on creeping bentgrass‘Cobra’, Kentucky bluegrass (KB)‘Midnight’75% + Perennial ryegrass (PR)‘Palmer III’25%. This experiment was conducted from September 1, 2001 to August 31, 2002 at Hwajoulryong in Jeongsun County, Gwangwon-do. Treatments were Sand 80% + Peatmoss 20%, Sand 80% +KOB-Soil (No. 1) 20%, and Sand 80% +KOB-Soil (No. 2) 20%. Treatments with KOB Soils was superior to control fer the leaf length, number of leaf, turf quality and root length in Creeping bengrass and Kentucky bluegrass + Perennial ryegrass.

• Korean Journal of Medicinal Crop Science
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• v.4 no.1
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• pp.38-46
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• 1996

These studies were conducted to know the any differences in growth characteristics and root quality due to flower color and culture periods in Chinese bellflower. White flowered lines had tendency of increasing in growth characters such as stem numbers, capsule numbers and seed yield per plant, plant height, and root characters such as root weight, root length and root diameter even though statistically not significant. No differences were observed in saponin and essential oil contents between them. Three years old plants had more stems and capsules per plants, root weight and root length than two years old plants while no difference in saponin and essential oil contents between them. Saponin content was gradually decreased while essential oil content was clearly lowed in the roots from plants cultured more than 3 years even though no differences in stem and capsule numbers per plant and plant height.

• Journal of Bio-Environment Control
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• v.18 no.4
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• pp.413-419
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• 2009

The appropriate dripper position in perlite bag was investigated for tomato production. Drippers were laid at 5(F5), 15cm (F15) away from the stem base or 5cm at first and then moved to 15cm later (M5-15). Roots were developed more near the stem base in F5, while less in F15. Roots were distributed evenly in M5-15. In vertical distribution of water in perlite bag, water content was higher as it went deeper with the variation by dripper positions. Yield was high in F15 and low in F5. In conclusion the position of dripper is the best at 15cm from the stem base in perlite bag culture in view of root distribution and yield.

• Korean Journal of Weed Science
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• v.17 no.4
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• pp.407-412
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• 1997

Allelopathic activity of methanol extract from medicinal plants was determined based on the inhibition of germination, shoot and root length of Echinochloa crus-galli. The response was depended on the source of extracts and concentrations. Of the 20 test plants tested, Cnidium officinale showed most inhibition according to germination, shoot and root length of E. crus-galli. Based on the plant parts, the root extract of C. officinale had more inhibitory effect on E. crus-galli than the stem+leaf extract. Phytotoxic effects of the root extract on E. crus-galli showed 75% inhibition of seed germination, 95% inhibition of shoot growth, and 100% inhibition of root growth at the concentration of 1g/petridish. Sequential partitioning of root extract with organic solvents with increasing polarity showed that the ethylacetate fraction had the greatest inhibitory effect on E. crus-galli. Germination was not inhibited at any rate of ethylacetate fraction but shoot and root growth, were significantly inhibited even at 2mg/petridish. This indicates that the most toxic phytotoxin present in the root extract may be moderate polar compound.

• Proceedings of the Korean Society of Crop Science Conference
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• 1988.07a
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• pp.12-13
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• 1988

• The Hankook-Saengyark Bo
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• no.247
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• pp.5-5
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• 2001

고품질 작약 가공기술 연구(10분 기계박피후 절단 열풍건조, 약효성분 높아) - 자생 둥글레 분재용 개발 - 작약재배때 이랑 30cm로 높여 생육양호하고 경제성도 뛰어나 - $\ulcorner$귀하의 건강 금산 인삼 약초차가 지켜드립니다$\lrcorner$ - 현대화 재배시설 이용 고품질 인삼생력재배

• The Hankook-Saengyark Bo
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• no.258
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• pp.6-6
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• 2004

더덕넝쿨 사료 가치(단백질$\cdot$칼슘등 영양소 풍부) - 구지뽕나무 종자 발아율 높여(젖은모래 섞어 땅속 20cm 저장$\cdots$ 이듬해 직파 - 할미꽃 등 자생식물서 제초물질 분리 - 헛개나무 대량증식 기술 개발(뿌리잘라 아토닉 1,000배액에 담갔다 심어)

• Proceedings of the Korean Society of Crop Science Conference
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• 1992.05a
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• pp.42-43
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• 1992

• Korean Journal Plant Pathology
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• v.11 no.2
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• pp.132-138
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• 1995

우리나라 사과원에서의 토양병 발생현황과 발생실태를 1991년부터 1993년까지 3년간 조사한 결과, 전체 조사주수의 약 8.1%가 각종의 토양 병원균에 감염되어 있는 것으로 나타났다. 토양병 중 자주날개 무늬병의 발생빈도가 5.1%로 가장 높게 조사되었으며, 흰날개무늬병과 역병의 이병주율은 각각 2.5%와 0.2%로 조사되었다. 자주날개무늬병에 감염된 나무에서는 잎의 황화 및 조기낙엽, 신초생장 억제, 과실 생육 불량 등의 지상부 병징이 관찰되었고, 지하부 뿌리 표면에는 적자색 실모양의 균사나 균사속이 관찰되었다. 감염된 뿌리의 표피는 쉽게 벗겨지고 목질부로부터 잘 이탈되는 특징이 있었다. 흰날개무늬병균에 감염된 나무의 뿌리는 흰색의 균사 혹은 균사막으로 싸여 있으며 이 균사막은 시간이 경과하면 회색 내지 흑색으로 착색되었다. 굵은 뿌리의 표피를 제거하면 목질부에 백색 부채모양의 균사막과 실모양의 균사속을 확인할 수 있었다. 이 병원균은 목질부까지 부패시키므로 병의 증세가 심하게 나타났다. 자주날개무늬병은 새로 개원한 10년 이하의 과원에서 발생이 많았다. 자주날개무늬병은 왜화도가 높은 대목에서 발병율이 높았으나 흰날개무늬병은 대목의 종류에 관계없이 발명되었다. 자주날개무늬병은 식양토 과원에서 발생이 많았으며 흰날개무늬병은 사양토 과원에서 발생이 많았다.