• 제목/요약/키워드: stem extension

검색결과 281건 처리시간 0.028초

Genetic Characteristics and Anthocyanin Content of Basil(Ocimum basilicum L.)

  • Jae Eun Kim;Song Mun Kim;Ki Yeon Lee;Kyung Dae Kim;Jae Hee Lee;Eun Ha Jang;Jin Gwan Ham
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2022년도 추계학술대회
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    • pp.318-318
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    • 2022
  • Basil(Ocimum basilicum L.) is an annual herb that grows wild in hot and humid regions such as tropical Asia and Africa. This study was carried out for resource discovery, propagation, and DB construction of aromatic plants. In order to evaluate the genetic characteristics, 28 kinds of basil seeds were supplied from the Center for Genetic Resources. For basil characteristics, planting date, plant height, growth shape, leaf length, leaf shape, petiole color, petiole, stem color, flower color, after harvest, Ml length including roots, flower length, stem thickness and biological weight were measured. For anthocyanin analysis, only basil with purple color was selected, anthocyanins were extracted with 60% ethanol containing 1% citric acid, a standard quantitative curve was prepared with cyanidin-3-glucoside, and absorbance was measured at 525 nm. Basil planting started around June 16, and the flowering period lasted for a total of 18 days from July 19 to August 5. On August 6, when flowering was completed, morphological characteristics including flower color were measured at the site by an object. The measured basil plant length was 26.6-59.6 cm, leaf length 2.0-7.9 cm, leaf width 0.7-5.2 cm, and petiole 1.3-3.9 cm. The growth pattern of basil was generally straight, medium in shape. The color of the leaves was observed evenly by mixed green, purple, purple and green, and the recesses in the shape of the leaf were also conspicuously observed. A total of three basil flower colors were observed: white, light pink(149P 10P/84), and purple(37V 2.5RP 4/12). During the second growth survey after harvest, the total length including the basil roots is 26.7-52.0 cm, the flower length is 8.2-29.3cm, the stem thickness is 7.1-15.9mm, the number of stem nodes is 3-12 nodes, and the total weight of the basil was measured to be about 218-1540 g. There are a total of 16 types of basil expressed in purple, and the anthocyanin content was measured to be 73.74 ~ 380.72 mg/100g.

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적심시기가 감초의 생육 및 품질에 미치는 영향 (Effect of Topping Time on Growth and Quality in Glycyrrhiza uralensis)

  • 남상영;김인재;최성열;김영호;송인규;이광재;박재호;김태중
    • 한국자원식물학회지
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    • 제24권2호
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    • pp.189-194
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    • 2011
  • 본 연구는 적심이 감초의 생육 및 수량에 미치는 영향을 구명코자 2008년부터 2009년까지 2년간 충북농업기술원에서 수행하였다. 적심 처리시기에 따라 6월 30일(JUN), 7월 30일(JUL), 8월 30일(AUG), 무적심(대조구) 등 4처리를 하였으며, 적심량은 줄기 길이의 20%를 제거하였다. 본 연구의 결과는 다음과 같이 요약할 수 있다. (1) 초장과 분지수는 적심처리구보다 대조구에서 우수하였으며, 경엽중은 적심시기가 빠를수록 무거웠다. (2) 초장과 줄기 직경은 적심 시기에 따른 영향을 받지 않았다. (3) 지표면의 포복경 생장에는 일정한 경향이 없었다. (4) 본 실험에서 적심이 뿌리 생장을 유도하고, 조기 적심이 뿌리 생육을 촉진하였다. (5) 근중은 대조구 2년생 238 kg/10a에 비해 JUN 처리구와 JUL 처리구에서 각각 11~30% 증가하였으며, 3년생은 대조구 432 kg/10a에 비해 6~11% 증가하였다.

감초 생육 및 품질에 미치는 재배 토성의 영향 (Effects of Cultural Soil Texture on Growth and Quality of Glycyrrhiza uralensis Fischer)

  • 남상영;김인재;최성열;김민자;김영호;송인규;이광재;박재호;김태중
    • 한국국제농업개발학회지
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    • 제23권5호
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    • pp.531-536
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    • 2011
  • 재배토성이 감초 생육 및 품질에 미치는 영향을 구명코자 2009년부터 2년간 시험을 수행한 결과를 요약하면 다음과 같다. 1. 재배년생별 생육중 경엽은 1년생, 포복경 2년생, 근은 2년생에서 양호한 경향을 보였으며, 토성에 따라서 경엽중은 사양토에서 무거웠고, 초장, 분지수, 경태는 사질식양토에서 우수하였다. 2. 포복경의 길이, 수, 무게 등 생육은 사질식양토 > 사양토 > 양질사토 순으로 좋았다. 3. 주근과 지근의 생육은 양질사토에서 길었으며, 주근경, 지근경은 사양토에서 굵었다. 지근수는 사질식양토에서 다소 많았다. 4. 근 수량은 주근, 지근 등에서 사양토 > 사질식양토 > 양질 사토 순으로 많으며, 1년생과 2년생 근 상품 수량은 사양토에서 양질사토 204 kg/10a 대비 57%, 2년생은 71% 각각 증수하였다. 5. 글리시리진(glycyrrhizinic acid)의 함량은 1년생은 사질식 양토에서 1.62%, 2년생은 사양토에서 1.58%로 가장 높았다.

Occurrence of Stem Rot of Disporum smilacinum Caused by Sclerotium rolfsii in Korea

  • Kwon, Jin-Hyeuk;Jee, Hyeong-Jin
    • The Plant Pathology Journal
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    • 제23권3호
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    • pp.212-214
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    • 2007
  • In 2005 and 2007, a basal stem rot of Disporum smilacinum caused by Sclerotium rolfsii occurred sporadically in a herb farm at Hamyang, Korea. The symptom initiated with water-soaking lesion and progressed into stem rot and wilt of a whole plant. Severely infected plants were blighted and died eventually. White mycelial mats appeared on the lesion at early stage and a number of sclerotia were formed on the stem near the soil line. The sclerotia were globoid in shape, 1-3 mm in size and white to brown in color. The optimum temperature for the growth and sclerotia formation was 30 on PDA and the hyphal width was measured $3-8{\mu}m$. The typical clamp connections were observed in the hyphae of the fungus grown on PDA. On the basis of symptom, mycological characteristics and pathogenicity to the host plant, this fungus was identified as Sclerotium rolfsii Saccardo. This is the first report on the stem rot of D. smilacinum caused by S. rolfsii in Korea.

Sclerotium rolfsii에 의한 초석잠 흰비단병 (Stem Rot of Stachys sieboldii Caused by Sclerotium rolfsii in Korea)

  • 권진혁;강동완;이성태;최옥희;신순선
    • 식물병연구
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    • 제17권3호
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    • pp.399-401
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    • 2011
  • 경남 산청군 신등면 농가포장에 재배중인 초석잠에서 Sclerotium rolfsii에 의한 흰비단병이 발생되었다. 병징은 줄기와 잎이 수침상으로 물러지고 썩으면서 서서히 시들어 말라 죽었다. 병반부와 지제부의 토양 표면에 흰색의 곰팡이가 발생하고 갈색의 작은 둥근 균핵을 많이 형성하였다. 균핵의 크기는 1-3 mm이며 균사의 폭은 4-9 ${\mu}m$였다. 균사특유의 clamp connection이 관찰되었다. 균사생육과 균핵형성 적온은 $30^{\circ}C$이었다. 이와 같이 초석잠에서 발생한 병징과 병원균의 균학적 특징을 근거로 하여 이 병을 S. rolfsii Saccardo에 의한 초석잠 흰비단병으로 명명하고자 제안한다.

Identification and Characterization of the Causal Organism of Gummy Stem Blight in the Muskmelon (Cucumis melo L.)

  • Choi, In-Young;Choi, Jang-Nam;Choi, Dong-Chil;Sharma, Praveen Kumar;Lee, Wang-Hyu
    • Mycobiology
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    • 제38권3호
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    • pp.166-170
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    • 2010
  • Gummy stem blight is a major foliar disease of muskmelon (Cucumis melo L.). In this study, morphological characteristics and rDNA internal transcribed spacer (ITS) sequences were analyzed to identify the causal organism of this disease. Morphological examination of the Jeonbuk isolate revealed that the percentage of monoseptal conidia ranged from 0% to 10%, and the average length $\times$ width of the conidia was 70 ($\pm$ 0.96) $\times$ 32.0 ($\pm$ 0.15) ${\mu}m$ on potato dextrose agar. The BLAST analysis showed nucleotide gaps of 1/494, 2/492, and 1/478 with identities of 485/492 (98%), 492/494 (99%), 491/494 (99%), and 476/478 (99%). The similarity in sequence identity between the rDNA ITS region of the Jeonbuk isolate and other Didymella bryoniae from BLAST searches of GenBank was 100% and was 95.0% within the group. Nucleotide sequences of the rDNA ITS region from pure culture ranged from 98.2% to 99.8%. Phylogenetic analysis with related species of D. bryoniae revealed that D. bryoniae is a monophyletic group distinguishable from other Didymella spp., including Ascochyta pinodes, Mycosphaerella pinodes, M. zeae-maydis, D. pinodes, D. applanata, D. exigua, D. rabiei, D. lentis, D. fabae, and D. vitalbina. Phylogenetic analysis, based on rDNA ITS sequence, clearly distinguished D. bryoniae and Didymella spp. from the 10 other species studied. This study identified the Jeonbuk isolate to be D. bryoniae.

Sclerotium rolfsii에 의한 고구마 흰비단병 (Stem Rot of Sweet Potato (Ipomoea batatas) Caused by Sclerotium rolfsii in Korea)

  • 김주희;김신철;정성수;최규환;김두연;심홍식;이왕휴
    • 식물병연구
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    • 제19권2호
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    • pp.118-120
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    • 2013
  • 2007년부터 2009년까지 전북 익산지역의 고구마 육묘장에서 봄에 Sclerotium rolfsii에 의한 고구마 흰비단병이 발생하였다. 초기증상은 황화되어 시들고 감염된 조직 주변과 지제부에 흰색의 균사체가 형성되었다. 육묘시기에는 병에 매우 약하여 감염되면 고사된다. 병원균은 배지 위에서 흰색균사가 빠르게 자라고 7일 후 균핵을 형성하였다. 균핵은 처음에 흰색에서 시간이 경과됨에 따라 갈색으로 변하였다. 따라서 고구마에서 발생한 병징, 병원균의 균학적 특징과 병원성을 검정한 결과, 이 병을 S. rolfsii Saccardo에 의한 고구마 흰비단병으로 동정하였다.

백·분홍색 절화장미 '수려' 육성 (A New Rose Cultivar 'Suryeo' with White-pink Flower Color)

  • 김주형;김시동;김승덕;김태중;노창우;민경범;백기엽
    • 원예과학기술지
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    • 제29권2호
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    • pp.160-163
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    • 2011
  • 충북농업기술원에서 육성한 장미 '수려'는 절화용 장미로 황적색 스탠다드 계통의 장미 품종인 'Konfetti' 품종을 모친으로, 분홍색의 화색을 가진 스탠다드 계통의 'Laser' 품종을 화분친으로 하여 2003년에 인공 교배한 후 계통선발 및 3차 특성 검정을 거쳐 2007년에 최종 선발하여 '수려(Suryeo)'로 명명하였으며 2009년에 품종보호권이 등록되었다. 수려는 백색과 분홍색(Red-purple Group N57B)이 혼합된 스탠다드형 장미로 연간 절화수량은 149(본/$m^2$/년)이고 꽃잎수는 64매, 개화소요일수는 48일, 절화수명은 12일 정도이다. 절화장은 78cm이며 꽃무게는 50g이었다. 특히 수세가 강건하며 흰가루병에 강한 특성이 있다.

Stem Rot of Tomato Caused by Sclerotium rolfsii in Korea

  • Kwon, Jin-Hyeuk;Park, Chang-Seuk
    • Mycobiology
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    • 제30권4호
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    • pp.244-246
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    • 2002
  • A destructive stem rot of tomato(Lycopersicon esculentum) occurred sporadically some farmers' fields in Jinju City, Gyeongnam province in Korea. The infected plants also showed stem, crown rot or whole plant blight. White mycelium spread over stems of infected plants and formed sclerotia on the old lesions nearby soil surface. The fungus showed maximum mycelial growth around $30^{\circ}C$. The fungus formed white colony on PDA, usually with many narrow mycelial strands in the aerial mycelium and the width were $4.0{\sim}9.8{\mu}m$. The typical clamp connections were formed on the mycelium. Numerous sclerotia was formed on PDA at $30^{\circ}C$. The shape of sclerotia was globoid and $1.0{\sim}3.0$ mm in size. The fungus was isolated repeatedly from the infected tissues and the pathogenicity was confirmed to tomato and identified as Sclerotium rolfsii. This is the first report on the stem rot of tomato caused by S. rolfsii in Korea.

Stem Rot of Strawberry Caused by Sclerotium rolfsii in Korea

  • Kwon, Jin-Hyeuk;Shen, Shun-Shan;Park, Chang-Seuk
    • The Plant Pathology Journal
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    • 제20권2호
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    • pp.103-105
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    • 2004
  • A destructive stem rot of strawberry (Fragaria x ananassa cv. Akihime) sporadically occurred in farmers' fields in Daegok-myon, Jinju city, Gyeongnam province in Korea. The infected plants showed stem and crown rot, with occasional blighting of the whole plant. White mycelia appeared on stems of infected clones and sclerotia formed on the old lesions near soil surface. The fungus formed white colony on PDA and showed maximum mycelial growth and sclerotial formation at $30^{\circ}C$. The fungus usually have many narrow hyphal strands, 2.6-10.0 $\mu\textrm{m}$ in width, in the aerial mycelium. Typical clamp connections were formed on the mycelium. Sclerotia were spherical and 1.0-2.4 mm in size. The fungus was repeatedly isolated from infected tissues and identified as Sclerotium rolfsii. Its patho-genicity was confirmed when inoculated onto straw-berry. This is the first report on the stem rot of strawberry caused by S. rolfsii in Korea.