• 제목/요약/키워드: Horticultural Plant

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고구마 뿌리혹선충 저항성 토마토 품종 스크리닝 (Screening of Tomato Cultivars Resistant to Root-knot Nematode, Meloidogyne incognita)

  • 김형환;조명래;강택준;정재아;한유경
    • 식물병연구
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    • 제16권3호
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    • pp.294-298
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    • 2010
  • 고구마 뿌리혹선충(Meloidogyne incognita)에 대한 저항 성품종을 스크리닝하고자 32개 완숙 토마토 품종, 11개 방울 토마토 품종 및 8개 대목 토마토 품종을 대상으로 포트 검정을 통해 조사하였다. 완숙 토마토 32 품종중에서 저항성인 품종은 홈런킹이었고, 중간 저항성 품종은 레전드썸머, 레전드, 선명, 핑크탑, Top3, 델리스, 타샤, 릴리앙스 등 8 품종이었다. 방울 토마토 11 품종중에서는 레드체리가 저항성 품종이었고, 텐텐, 디저트, 레드스타, 베리킹, 아리가또 등이 중간 저항성 품종이었다. 8개의 대목 토마토 품종중에서는 부킹하계, 스페셜이 저항성 품종이었고, B-블로킹, 솔류션, 동반자, 그린파워가 등이 중간 저항성 품종이었다.

Kinematic and Kinetic Analysis of Upper Limb Motions During Horticultural Activities

  • Lee, A-Young;Park, Sin-Ae;Kim, Jai-Jeong;So, Jae-Moo;Son, Ki-Cheol
    • 원예과학기술지
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    • 제34권6호
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    • pp.940-958
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    • 2016
  • The objective of this study was to analyze the kinematic and kinetic characteristics of two horticultural activities: seed sowing and planting plant. Thirty-one male university students (aged $26.2{\pm}2.0years$) participated in this study. Kinematic factors (movement times, peak velocity, joint angles, and grasp patterns) were assessed using a three-dimensional motion analysis system while the subjects performed the horticultural activities. Kinetic factors (muscle activation of eight upper-limb muscles: the anterior deltoid, serratus anterior, upper trapezius, infraspinatus, latissimus dorsi, biceps brachii, brachioradialis, and flexor carpi radialis) were assessed using surface electromyography. The acts of seed sowing and planting plant were comprised of five tasks which included six types of phases: reaching, grasping, back transporting, forward transporting, watering, and releasing. The movement times, peak velocity, joint angles, and grasp patterns were significantly different across the tasks involved in the horticultural activities. All eight muscles of the upper limbs were utilized during the horticultural activities, and the muscle activation of the serratus anterior was the highest compared to that of the other muscles tested. The kinematic and kinetic characteristics of these horticultural activities showed similar characteristics to reaching and grasping rehabilitation training and daily living activities. The present study provides reference data for common horticultural activities using a kinematic and kinetic analysis.

Production of Pigments and $\alpha$-Tocopherol by Cell Cultures in Safflower (Carthamus tinctorius L.)

  • Gao, Wen-Yuan;Seon, Jeong-Hoon;Son, Sung-Ho;Maurice Moloney;Paek, Kee-Yeoup
    • Journal of Plant Biotechnology
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    • 제1권2호
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    • pp.69-77
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    • 1999
  • Safflower is an important medicinal plant that has been used in China, Korea and Japan for thousands of years. The red and yellow pigments obtained from the petals of safflower can invigorate blood, release stagnation and promote menstruation. In addition, these pigments are used safely in processed foods and soft drinks as naturally harmless rotor additives. On the other hand, the seed of safflower contains 30-40% oil with higher level of mono- and poly-unsaturated fatfy acid profiles and elevated levels of $\alpha$-tocopherol. In this paper, we describe advances in the production of pigments and $\alpha$-tocopherol by cell culture in safflower.

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Occurrence of Tomato spotted wilt virus in Chrysanthemum (Dendranthema grandiflorum) in Korea

  • Chung Bong-Nam;Pak Ha-Seung;Jung Jae-A;Kim Jeong-Soo
    • The Plant Pathology Journal
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    • 제22권3호
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    • pp.230-234
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    • 2006
  • Tomato spotted wilt virus (TSWV) has been identified in commercial chrysanthemum cultivars in Korea. Nucleotide sequences of the N gene of TSWV-ch14 isolated from infected chrysanthemum were determined and deposited in GenBank under accession no. DQ453158. The symptoms consisted of dark colored leaf necrosis, black streaks along the stem, wilting of plant parts in 'Sinma'; and chlorotic spots, necrosis of axillary shoots and withering of leaves in 'Hwarang'. Electron micrographs of leaf preparation of Nicotiana rustica infected with TSWV-ch14 contained spherical particles around 85 nm in diameter. TSWV was identified from chrysanthemum by sequence determination of N nucleocapsid protein and virion observation by transmission electron microscope. This is the first reported observation on TSWV in chrysanthemum in Korea.

Development of Single-tube Multiplex Immunocapture RT-PCR Assay for Simultaneous Detection of Two Pepper Tobamoviruses

  • Kim, Jae-Hyun;Choi, Gug-Seoun;Kim, Jeong-Soo;Lee, Sin-Ho;Choi, Jang-Kyung;Ryu, Ki-Ryun
    • The Plant Pathology Journal
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    • 제22권2호
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    • pp.164-167
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    • 2006
  • An immunocapture reverse transcription-polymerase chain reaction (IC/RT-PCR) was developed for simultaneous detection of two pepper-infecting RNA viruses, Pepper mud mottle virus (PMMoV) and Tobacco mild green mosaic virus (TMGMV). The assay could be performed in a single tube for simultaneous and sensitive detection of these tobamoviruses. This detection system revealed thousand-fold increase in detection sensitivity compare to ELISA. This method could save time and reagent cost compare to common RT-PCR which needs several reactions and several procedures of viral RNA extractions for the same number of samples.

Inheritance and expression of transgene in SOD2-Transgenic petunia descendants and their morphological traits

  • Lee, Su-Young;Han, Bong-Hee;Cho, A-Young
    • Journal of Plant Biotechnology
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    • 제36권3호
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    • pp.289-293
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    • 2009
  • This study was conducted to determine the inheritance and expression of transgene in descendants ($T_1\;to\;T_2$ generation) of SOD2-transgenic petunia by PCR and RT-PCR analysis. The trangene was segregated as Mendelian inheritance pattern (3:1 or 1:0) in most of $T_1\;and\;T_2$ generation lines. Transgenic homozygous lines were obtained in T2 generation. It was identified that the transgene expressed stably in examined all plants of 6 $T_2$ lines. The representative morphological traits (plant height, flower diameter, and flower color) of $T_2$ plants were compared with those of non-transgenic plants.

새만금 전작.원예단지 후보지구 토양의 화학적 특성 (Chemical Properties of Soil in the Proposed Horticultural Complexes of Saemangeum Reclaimed Tideland)

  • 손재권;최진규;조재영
    • 한국농공학회논문집
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    • 제51권4호
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    • pp.67-73
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    • 2009
  • Chemical properties of soil in the proposed horticultural complexes of Saemangeun reclaimed tideland were studied for sustainable development of the newly reclaimed land resources. The soil texture of Gwanghwal, Gyehwa, Mangyeong and Okgu complex area were sandy loam. The pH and ESP (exchangeable sodium percentage) were 7.42 to 7.82 and 61.05 to 73.62 %, respectively. Compared to general agricultural land in Korea, the soil organic matter and other plant nutrients were low. The concentrations of heavy metals in the soil were found to be acceptable except several sites where they doesn't meet the warning standard of agricultural land contamination. Continuous monitoring and interception of external pollutants are suggested for water-soil-plant system conservation.

First Report on Poinsettia mosaic virus in Korea

  • Chung, B.N.;Lee, E.K.;Jeong, M.I.;Kim, H.R.
    • The Plant Pathology Journal
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    • 제20권3호
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    • pp.220-223
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    • 2004
  • Most plants of commercial poinsettia cultivars grown from cuttings develop mosaic and chlorotic dot symptoms on leaves. Reverse transcription-polymerase chain reaction (RT-PCR) test showed that they were infected with Poinsettia mosaic virus (PnMV). In a survey of commercially grown poinsettias conducted in Korea, PnMV was detected in ten of ten poinsettia cultivars sampled and in 100% of 178 samples tested. The virus has isometric particles and about 29 nm in diameter. Crystalline virus particles were observed in cytoplasm of cells of diseased plants by transmission electron microscopy. Nucleotide sequence of coat protein gene of PnMV- Kl showed 97.3% homology with that of a German isolate. This is the first report on PnMV in Korea.

Chrysanthemum stunt viroid in Dendranthema grandiflorum

  • Chung, Bong-Nam;Park, Gug-Seoun;Kim, Hyun-Ran;Kim, Jeong-Soo
    • The Plant Pathology Journal
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    • 제17권4호
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    • pp.194-200
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    • 2001
  • Chrysanthemum stunt viroid (CSVd) ws identified in chrysanthemum cv. Chunkwang showing symptoms of stunt with leaf distortion (K1) and stunt with chlorosis of leaves (K2) collected from the main cultivation area of Masan, Kyongnam province in Korea. The specific RNAs related with the diseased chrysanthemums were detected. Full-length 354 bp CSVd cDNAs were amplified from infected tissue by reverse transcription and polymerase chain reaction using a pair of primers specific for CSVd sequence. The amplified cDNA products were analyzed by agarose gel electrophoresis and the specific cDNAs were cloned. Nucleotide sequences of the two CSVd isolates K1 and K2 varied. Phylogenetic analysis of the nucleotide sequences of CSVd isolates indicated that K1 was closely related with J2 and Am 2 isolates. K1 and K2 were transmitted by grafting to Dendranthema grandiflorum cv. Mistletoe, Gynura aurantiaca, and Lycopersicon esculentum cv. Rutgers. This is the first report of CSVd in D. grandiflorum in Korea.

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