재식거리가 코끼리마늘(Allium ampeloprasum L.)의 생육과 수량에 미치는 영향

윤철구,김기현,안기수,정재현,박영욱,권영희,이상영 한국자원식물학회 2015 한국자원식물학회지 Vol.28 No.4

코끼리마늘의 적정 재식거리를 구명하고자 휴폭을 120 ㎝로하고 재식거리를 주간20 ㎝ × 조간 20 ㎝, 주간 20 ㎝ × 조간15 ㎝ 및 주간 20 ㎝ × 조간 10 ㎝로 달리 조절하여 생육과 수량을 조사한 결과, 출현기는 11월 중․하순이었고 출현소요일수는약 30일 정도 소요되었으며, 개화소요 일수는 모든 처리에서221일이 소요되었다. 지상부 생육은 초장 및 엽 생육은 재식거리 간 차이를 보이지 않았고, 화경장은 재식거리가 좁을수록 줄어드는 경향을 보였다. 지하부 생육 조사결과 구중은 재식거리가 좁을수록 적어지는 경향을 보였고, 구형지수는 재식거리가좁을수록 타원형의 형태를 보였다. 인편수와 자구수 또한 재식거리가 좁을수록 많아지는 경향을 보였다. 코끼리마늘의 재식거리별 수량은 조간 20 ㎝ × 주간 20 ㎝ 1,811 ㎏/10a, 조간 20 ㎝ × 주간 15 ㎝ 2,375 ㎏/10a 및 조간 20 ㎝ × 주간 10 ㎝에서2,838 ㎏/10a를 보였지만 상품화율 조사결과 재식거리 조간 20 ㎝ × 주간 15 ㎝에서 1,593 ㎏/10a로 가장 높은 경향을 보였다 This study investigated the effect of planting density on growth and yield of elephant garlic. Three planting densities of 20 × 20, 20 × 15, and 20 × 10 ㎝ were tested with the furrow width fixed at 120 ㎝ for the evaluation of elephant galic growth and yield. The average date of emergence was middle and late November, requiring about 30 days for the all emergence. For the flowering, 221 days after sowing were required in all the treatments. Plant height and leaf growth were not significantly different according to the planting density. Flower stalk was shorter when planting density was narrow. The L/D ratio was decreased to form oval shape when planting density was narrow. The yield of elephant garlic was 1,811 ㎏ /10a in planting density 20 × 20 ㎝, 2,375 ㎏/10a in 20 × 15 ㎝, and 2,838 ㎏/10a in 20 × 10 ㎝ plot. The marketable garlic ratio was highest as 1,593 ㎏/10a in planting density of 20 × 15 ㎝.

[조명] 조명기구 제조업계 기술 선도기업 ‘미미라이팅’

윤철구 한국조명·전기설비학회 2017 조명.전기설비 Vol.31 No.3

유기질비료 시용방법이 백수오 수량 및 생육에 미치는 영향

윤철구,김기현,김인재,이희두,홍성택,홍의연,김영국,장재기 한국약용작물학회 2017 한국약용작물학술대회 발표집 Vol.2017 No.09

대형블럭옹벽 (REB)공법 설계 및 시공

윤철구 한국지반신소재학회 2015 한국토목섬유학회 학술발표회 Vol.2015 No.10

토양수분 함량이 삼백초 생육에 미치는 영향

윤철구,김기현,이경자,김영호,홍성택,김영국 한국약용작물학회 2018 한국약용작물학술대회 발표집 Vol.2018 No.10

Background : There are studies on the planting distance, sowing periods, and over wintering method of Saururus chinesis, but lesson the necessary soil moisture content for rhizome growth. This study examines the effects of soil moisture content on the growth of Saururus chinesis. Method and Results : The radicles of Saururus chinesis were harvested in the beginning of March and cut into three joints. The planting densities were determined as 40 ㎝ × 10 ㎝, 40 ㎝ × 20 ㎝ and 40 ㎝ × 30 ㎝, and the soil moisture content was adjusted through continuous flooding treatment, wetting (0 ~ -10 kPa), and field moisture capacity (-20 ~ -50 kPa). As a result of investigating the ground growth of Saururus chinesis, the growth through continuous flooding was best with the planting distance of 40 ㎝ × 20 ㎝ that yielded a plant height of 7.4 ㎝, stem diameter of 5.2 ㎜, and leaf number of 5.5. The growth through field capacity (-20 ~ -50 kPa) was poorest at the planting distance of 40 ㎝ ×10 ㎝. The transpiration rate, indicating the breathing of leaves, was highest at 1.4 s ㎝-1 through continuous flooding at 40 ㎝ × 30 ㎝, and decreased to 0.5 s ㎝-1 with the field capacity of (-20 ~ -50 kPa) 40 ㎝ × 20 ㎝. The investigation on the leaves showed that the leaf weight was heaviest at 23.1 g/plant through continuous flooding of 40 ㎝ × 30 ㎝ that also showed a wider leaf area and rich chlorophyll. At continuous flooding of 40 × 10 ㎝, the leaf weight was as light as 9.5 g/plant, showing no consistency among treatments. The investigation on the underground growth showed the best results through continuous flooding with a planting distance of 40 × 10 ㎝ where the root length was 50.7 ㎝, root diameter 6.7 ㎜, and fresh root weight of 45.3 g/plant, which decreased to 24.4 g/plant with field capacity (-20 ~ -50 kPa). The investigation on the polyphenol content as a functional component showed the richest content in the leaf of the plant at 752.5 ㎎/100g through continuous flooding, and lowest at 661.0 ㎎/100g with field capacity. With the field capacity (-20 ~ -50 kPa) it was the highest at 262.0 ㎎/100g. Conclusion : It was the most advantageous for mass Saururus chinensis radical production with continuous flooding treatment for soil moisture and a planting distance of 40 × 10 ㎝.

전기에너지를 이용한 동결육의 급속 해동 기술

윤철구,박지용 한국식품과학회 1996 식품과학과 산업 Vol.29 No.3

비닐절개에 의한 엽초유인이 한지형마늘 생육 및 수량에 미치는 영향

윤철구,김인재,이재선,김기현,남상영,김태중 韓國國際農業開發學會 2013 韓國國際農業開發學會誌 Vol.25 No.4

To investigate the effect of leaf sheath training by P.E film incise on the plant growth and yields in northern type garlic, three treatments including the general training (Control), the P.E film incise training and the all-at-once removal training were conducted. The plant height was the best in the all-at-once removal training at the early growth stage, but there seemed to be little difference in the late growth characteristics. The growth of leaf sheath was not different at the early of April, but lower at the latter period in the all-at-once removal training. The changes of chlorophyll contents were severe, particularly, the SPAD values were 46.0 to 62.5 in the all-at-once removal training, on the other hand, that values were 3.0 in general training. The soil temperature difference between the general training and the P.E film incise training treatments (12) were heavier than that of the all-at-once removal training (14), and the soil moisture difference was little in the P.E film incise training. In the general training and the P.E film incise training, the bulb weights were somewhat higher. The index of bulb shape was 0.85 in the general training, but 0.82 in the all-at-once removal training. The products amount per 10a (751kg) increased by 9% in the P.E film incise training. 한지형 마늘의 엽초유인 방법에 따른 마늘 엽 생육과 수량 에 미치는 영향을 구명하고자 관행유인, 비닐절개유인, 일시제 거유인 등 3처리를 두어 실험을 실시한 결과, 초장은 생육 초 기 일시제거유인에서 좋았으나, 생육 후기로 갈수록 차이가 없 었으며, 엽초경은 4월 상순까지는 비슷한 생육을 보였으나, 생 육후기로 갈수록 일시제거유인에서 저조하였다. 엽록소 함량 은 비닐 일시제거 유인에서 SPAD값이 46.0~62.5로 변화폭이 컸던 반면, 관행유인은 3.0(SPAD값)으로 변화폭이 적었다. 엽 초유인 방법별 토양온도는 관행 및 비닐절개 유인에서 최고· 최저 온도차가 비닐 일시제거유인에서는 14oC로 온도의 변화 폭이 컸다. 구중은 관행 및 비닐 절개 유인에서 무거웠으며, 1,000당 투하노동력은 비닐절개구와 비닐 일시제거구에서 관 행 66.5시간/2인 대비 각각 17.3%와 18.3%의 점감효과가 있 었고, 1,000당 수량은 비닐절개 유인이 751 kg로 관행유인 686 kg에 비해 9% 증수되었다.

2,4-D 處理가 'Harcot' 살구와 '美白' 복숭아의 果實 成熟과 品質에 미치는 影響

윤철구,김영호,임상철,김학현,이철희,최관순,김선규 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

Effect of 2,4- D application on the fruit maturity and quality of 'Harcot' apricot and 'Mibaek' peach was examined. Leaf area of 'Harcot' apricot was not affected by 2,4-D while that of 'Mibaek' peach was increased by 35mg · L-1 2,4-D. Application of 2,4-D at 35mgㆍL-1 increased the fruit weight of both species, and that of 'Harcot' was doubled. Soluble solids content of 'Harcot' was decreased by 2,4-D while that of 'Mibaek' was not affected. Fruit maturity of 'Harcot' and 'Mibaek' was enhanced for respective 4 and 1 day by 2,4-D application. Percent fruit cracking of 'Harcot' apricot was decreased by 35mg · L-1 2,4-D.

황정 엽수가 종근 수량 및 품질에 미치는 영향

윤철구,김기현,이경자,김영호,홍성택,김영국 한국약용작물학회 2018 한국약용작물학술대회 발표집 Vol.2018 No.05

Background : Polygonatum is a perennial herbaceous crop that is further classified into P. falcatum A. Gray (wild vegetation of Jeju, Japan), P. sibiricum F. Delaroche (wild vegetation of Korea north, China, Russia, and Mongol), and P. stenophyllum MAx (wild vegetation of South of Danyang), with the herbal name of Rhizoma polygonati. Polygonatum is harvested after 5 - 6 years since planting, and the quality of the radicle is a major factor determining the quantity of harvest. This study presents the morphological characteristics to predict the later quantity of radicles when planting polygonatum, and develops the methods for the prediction. Methods and Results : This study investigated the ground-level growth and the quantity of radicles in underground in 5-years-old, 4-leaf, 5-leaf, and 6- or more leaved polygonatum planted in the Chungbuk Agricultural Research and Extension Services. According to the investigation on the ground-level growth by the number of leaves, the 5-leaved plant showed the best plant length and nodal leaf number; 171 ㎝ and 24/stock, respectively. On the other hand, the leaf number and leaf weight were as heavy as 85 leaves and 58.3 g/stock, respectively, in 6-leaved plants or plants with more leaves. The leaf area was as wide as 15.6 ㎠ with 5-leaved plant, and the chlorophyll was also high. The investigation on the underground growth showed the best results in 6-leaved plants or plants with more leaves: the root length was 23.8 ㎝, number of radicle node was 5.7, and root weight was 291 g. The quantity was highest at 2,148 ㎏/10 a with 6-leaved plants or plants with more leaves, and at the lowest at 907 ㎏/10 a in 4-leaved plants. The profit analysis showed a profit of 3,859,000 won/5 years in 6-leaved plants or plants with more leaves, which 86% higher than the 4-leaved plants. Conclusion : If plants with6-leaf or more leaves at the ground level are selected and used as radicles for new polygonatum packaging, the quantity of radicles has increased by 59% and the profit increased by 86%, compared to 4-leaved plants.

녹비작물 토양환원이 백수오 생육 및 품질에 미치는 영향

윤철구,김기현,김인재,홍성택,홍의연,김영국 한국약용작물학회 2017 한국약용작물학회지 Vol.25 No.2

Background:The study aimed to obtain data on the effects of cultivation and soil reduction of green manure crop on the quantity and quality of organically cultivated Cynanchum wilfordii Hemsley.Methods and Results:The experiment comprised four treatments: control, hairy vetch, barley, and hairy vetch + barley (3 : 2). The plant height in the hairy vetch treatment (86.3㎝) was significantly different from that in the other treatments, whereas the stem diameter leaf area, and special product analysis division (SPAD) value did not differ across the treatments. The largest soil reduction of green manure crop was recorded in the barley treatment (440 ㎏/10 a), whereas the smallest was recorded in the single treatment with hairy vetch (80 ㎏/10 a). The hairy vetch + barley (60 : 40) treatment showed 63% more soil microorganisms than control. Radical scavenging activity estimation revealed that the total polyphenol content was highest (1,740 ㎎/㎏), and the 2,2-diphenyl-1-picrylhydrazyl (DPPH) was 92.6% in the barley treatment. The 2,2’-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) activation was highest in the control (51.1%), and the root yield was the highest in the barley treatment (310 ㎏/10 a).Conclusions:The root yield, total polyphenol content, and antioxidant activity of Cynanchum wilfordii (Maxim.) Hemsley increased in presence of the green manure crop barley.