• Title/Summary/Keyword: 종자 수

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Reproductive Capacity of the Genus Lespedeza (II) (싸리류(類)의 재생(再生) 능력(能力) (II))

  • Han, Young Chang
    • Journal of Korean Society of Forest Science
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    • v.35 no.1
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    • pp.15-18
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    • 1977
  • In order to investigate reproductive capacity of genus Lespedeza 5 spp.; L. bicolor, L. maximowiczii, L. japonica var. intermedia, L. angustifolioides, and L. cyrtobotrya, their hights, diameter at the ground level, and the number of sprouts were compared with each other at the end of October during investigating years from 1970 to 1976. For measuring of invested items, 6 stocks which the one-year aged stem were cut above ground were randomly planted per square meter with six replications at the spring of 1970. After hights, diameter, and the number of sprouts were measured at the end of October every year, the stem were cut above ground at the end of November from 1970 to 1976. The results are as follows: 1. The reproductive of the stems showed statistiaclly significant differences at 1% level by species and stock ages. L. bicolor showed the best reproductive capacity of them. 2. The sprouting ability was revealed that L. maximowiczii showed the best of them. 3. The reproductive capacity of stem, diameter, and number of sprouts increased with aging of stock up to 5 years on the investigated 5 species.

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Establish of Optimum Cultivation Temperature for the Production of Peanut Sprouts (고품질 땅콩나물 생산을 위한 최적 재배수온 조건 확립)

  • Lee, Gyu-Bin;Park, Eun-Ji;Heo, You;Son, Beung-Gu;Choi, Young-Whan;Lee, Yong-Jae;Park, Young-Hoon;Suh, Jeong-Min;Kang, Jum-Soon
    • Journal of Environmental Science International
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    • v.24 no.6
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    • pp.763-767
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    • 2015
  • The present study was conducted to development mass production methods for peanut sprouts that is considered as a field of blue ocean among the agricultural products. 'Jopyeong' was the best as a major cultivar for peanut sprouts production. The manual for the production of high-quality peanut sprouts is as following. Germination temperature appropriate for production of high-quality peanut sprouts was $27^{\circ}C$. Peanut sprouts at the growth stage of 8th day, and older plants with advanced growth showed deteriorated merchantable and eating quality. Resveratrol compound was not found in the seeds, but its highest amount was detected from 9-day old sprouts. The best water temperature applicable to high quality peanut sprout production was $25^{\circ}C$. The growth of peanut sprout was inhibited by the high temperatures above $35^{\circ}C$ and low temperatures below $15^{\circ}C$.

New Columnar Apple Variety 'Tinkerbell' for Pollenizer (사과 무측지성 수분수용 신품종 '팅커벨')

  • Kwon, Soon-Il;Kwon, Young Soon;Park, Jong-Taek;Kim, Mok-Jong;Kim, Jeong-Hee
    • Journal of Bio-Environment Control
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    • v.25 no.3
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    • pp.173-176
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    • 2016
  • This research was performed to breed new columnar-typed apple variety for pollinator in apple orchard. We cross-fertilized 'Hongro' that was an ovary parent and 'Maypole' a pollen parent in 2003. We gathered seeds in 2003 and sowed after breaking of dormancy in 2004. Seedlings was been growth and development till flowering. After fruit setting, We investigated characteristics of growth and fruit including mating compatibility from 2010 to 2012, then finally selected '03-2-95' named 'Tinkerbell' in 2012, registered as new variety on Korea Seed & Variety Service in 2015. The full bloom stage of 'Tinkerbell' was later 2 days then of 'Maypole'. Tree habit of 'Tinkerbell' was alike to of 'Maypole', for example weak tree vigor, columnar type. But there were many different characteristics between 'Tinkerbell' and 'Maypole'. Fruit shape of 'Tinkerbell' was ovoid whereas of 'Maypole' was ellipsoid. Fruit of 'Tinkerbell' was bigger, smoother skin, no waxy bloom than of 'Maypole'. Fruit of 'Tinkerbell' was more delicious than of 'Maypole' because of having higher soluble sugar content and lower titratable acidity. 'Tinkerbell' was excellent pollinator in apple orchard. Because of having high fruit setting rate with major apple varieties and a narrow tree width that was advantageous as pollinator in apple high density system.

A new natural habitat of Abeliophyllum distichum Nakai (미선나무(Abeliophyllum distichum Nakai)의 새로운 자생지 보고)

  • Kim, Dong-Kap;Kim, Joo-Hwan
    • Korean Journal of Plant Taxonomy
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    • v.38 no.4
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    • pp.573-582
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    • 2008
  • We report a newly found natural habitat of Abeliophyllum distichum in mountainous slope range of Yeongdong-gun, Chungbuk Province. Abeliophyllum distichum Nakai is one of the Korean monotypic endemic species. Natural growth habitats of this species have been recorded from seven sites up to now, and all of the natural habitats are located in middle (Chungbuk Prov.) and middle west (Jeonbuk Prov.) parts of South Korea. Among the previously recorded seven natural habitats, six sites have been designated as Korean national monuments and protected with in situ conservation. New natural habitat of A. distichum is located on northwest slope of stiff hillock area beside the small stream, Seolgye-ri, Yeongdong-eup, Yeongdong-gun, Chungbuk Province. Total growing area is nearly $3,000 m^2$. It is 10-25 cm in soil depth and pH 5.0-6.5 in soil acidity in that area. And many of A. distichum are clustered with 2-5 individuals extended by stoloniferous asexual reproduction. And the total numbers of A. distichum are about 700 individuals with only typical white flowers, and the ratio between pin type and thrum type is 37% and 63%, respectively. The huge population of A. distichum is growing with Quercus mongolica-Fraxinus rhynchophylla association in a mixed forest, and it shows high affinity with Stephanandra incisa, Ligustrum obtusifolium, Euonymus alatus for. ciliatodentatus, and Smilax sieboldi.

Analysis of Management Efficiency for Abalone Seed Producer based on DEA Approach (DEA를 이용한 전복종자 생산업체의 경영효율성 분석)

  • Oh, Ye-Jin;Lee, Nam-Su;Kim, Dae-Young
    • The Journal of Fisheries Business Administration
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    • v.51 no.1
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    • pp.37-52
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    • 2020
  • The production of abalone seed has grown and been specialized since the 2000s with the growth of the abalone farming industry. Despite the increase in the production of abalone seeds, the sales volume of abalone seeds remained flat and competition among producers increased. This paper will analyze the management efficiency of abalone seed production fishery to diagnose the management status and improve the abalone seed production efficiency. In addition, this study is the result of the basic research on the abalone seed industry and it is meaningful to prepare a platform for further research since the management status survey and the management efficiency survey of abalone seed production fishery have not been conducted until now. The data on the farmed fish prices of abalone seeds were collected from surveys of sample fish as part of the fish seed observation project conducted by the Fisheries Outlook Center (FOC) of Korea Maritime and Fisheries Development Institute (KMI). Management efficiency analysis utilizes DEA (Data Envelopment Analysis) model. The DEA model was analyzed by classifying into CCR (Super-CCR), BCC, and SBM (Super-SBM) models according to the assumptions taking into account the characteristics of the industry. The slack considered in the SBM model was judged as possible decreases in input variables and increase in output variables. The average efficiency from the CCR model was analyzed to be 69%. The BCC model was classified into input and output orientations, and the average efficiency was 79% and 75%, respectively. There were seven production fisheries with an SE value of 1 or more, which remained unchanged in terms of size and could be benchmarked. The average efficiency of the SBM model was 59% for CRS and 66% for VRS. Under the VRS assumptions, the variable increase/decrease efficiency analysis shows that labor costs can be reduced by 37.3%, facility capacity by 18.8%, and operating costs by 8.5%. In order to improve management efficiency, Wando needs to reduce labor and management costs. In Jindo region, sales increase as well as labor cost reduction is urgent. In other regions, reduced facilities and increased sales are recommended.

Breeding of a New Saxifraga fortunei Hybrid 'Pinkle' with Dark Pink-Colored Petals as a Pot Flower (분화용 진한 핑크색 바위떡풀 신품종 '핑클' 육성)

  • Suh, Jong-Taek;Hong, Soo-Young;Yoo, Dong-Lim;Nam, Chun-Woo;Ryu, Seung-Yeol;Lee, Eung-Ho
    • Korean Journal of Plant Resources
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    • v.25 no.1
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    • pp.152-155
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    • 2012
  • A new Saxifraga fortunei 'Pinkle' was bred by crossing 'Juno' with 'Hongoan', both with light pink (RP-N66A)-colored petals. The selection of promising lines and characterization of flowers were conducted from 2004 to 2008 year in greenhouses of the Highland Agriculture Research Center, NICS, RDA. The flowering of 'Pinkle' starts on October 7 and lasted for 27 days. The number of flowers per plant is 99.7 with many flowering habits. The flower show mixed dark pink (R-P N66C) colors at opening. The flower have 5.0 petals, each have the size is 2.9 cm in width and 3.2 cm in length. Mean plant height is 15.8 cm and number of leaves are 44.3 ea. 'Pinkle' can be used as a pot flower. Fifty percent shading of the sunlight is recommended and soft rot disease occurs caused by over-irrigation. 'Pinkle' was registered as a new cultivar in Korea Seed and Variety Service in April 2011.

Characteristics of Agronomy Traits to Transgenic Rice Selected by Molecular Breeding Method (분자육종기법에 의해 선발된 형질전환 벼 계통의 작물학적 특성)

  • Lee, Hyun-Suk;Kang, Hyun-Goo;Park, Young-Hie;Jung, Hee-Young;Kim, Chang-Kil;Han, Jeung-Sul;Sohn, Jae-Keun;Kim, Kyung-Min;Park, Gyu-Hwan
    • Korean Journal of Plant Resources
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    • v.21 no.5
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    • pp.388-394
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    • 2008
  • This study was carried out to develop new cultivars using the $T_5$ generation of transformed rice by PCR analysis with DNA marker in each generation $(from\;T_3\;to\;T_5)$. In the previous study, we successfully developed the transgenic rice plants over-expressing the Arabidopsis $H^+/Ca^{2+}$ antiporter CAX 1 (accession no. U57411) gene. The calcium concentration in brown rice of transgenic plants was higher than that of donor plants, Iipum, and was selected 3 lines out of 25 lines at cultured GMO field. The major agronomic traits such as culm length, panicle length and panicle number of 3 lines at transgenic plants $(T_5)$ were similar to wild type. Also these lines appeared to have disease resistance to rice blast, cold resistance as compared with donor types. The grain shape was similar to donor plant, however, the 1000 grain weight of brown rice was different from transgenic plants. These finding would be used for basic data of new variety registration.

Numerical taxonomic study of the genus Sorbaria (Ser.) A. Braun in Asch. (Rosaceae) (쉬땅나무속(장미과)의 수리분류학적 연구)

  • SONG, Jun-Ho;HONG, Suk-Pyo
    • Korean Journal of Plant Taxonomy
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    • v.48 no.3
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    • pp.230-247
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    • 2018
  • We conducted principal component analyses using the quantitative characteristics of the genus Sorbaria to investigate and explore morphological variation and diagnostic characteristics. The genus Sorbaria was divided into two groups based on erect or pendulous inflorescence, the existence of hairs on the ovary and follicle surfaces, the number of stamens, and the shape of the sepal. As a result of our investigation and of a morphometric analysis, these two groups could be also classified using quantitative characteristics, in this case the number of leaflets, the size of the leaflets, the width of the inflorescence, the size of the sepal, the petal, and the follicles and seeds. In the Sorbifolia group (S. grandiflora and S. sorbifolia complex), the size of lateral leaflets, number of veins, gland and stellate density on the abaxial surface of leaflets, and the petal and follicle size were found to be useful identification characteristics. The terminal and lateral leaflet size and the gland and stellate density on the abaxial surface of the leaflets were found to be characters of taxonomic value for the Kirilowii group (S. arborea complex, S. kirilowii, and S. tomentosa complex). The results of the numerical analysis conducted here can provide valuable information to those reconsidering and delimiting a taxonomic revision of the genus Sorbaria.

Classification of the Edible Plants on the Market in Busan (시장에 유통되는 식용식물의 분류)

  • 문성기;정순해;최철만
    • Journal of Life Science
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    • v.13 no.6
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    • pp.764-774
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    • 2003
  • The edible plants sold at the market in Busan were classified into 8 divisions, 11 classes, 46 orders, 67 families, 156 genera, 183 species and 45 varieties, and a total of 228 kinds of plants were included in them. Among the 228 kinds of edible plants, Angiospermae were the highest number of 202 kinds (88.60%), and next came Fungi of 9 kinds (3.95%), Phaeophyta of 5 kinds (2.19%), Rhodophyta of 4 kinds (1.75%), Pteridophyta of 3 kinds (1.32%) Gymnospermae of 2 kinds (0.88%), Chlorophyta of 2 kinds (0.88%), and Lichenes of 1 kind (0.44%) in order In the taxon of family, Cruciferae, Rosaceae, Leguminoceae, Cucurbitaceae, Umbelliferae, Compositae, Liliaceae, and Gramineae include many species. In the taxon of genus, Brassica(14 species), Prunus(9), Lactuca(9), Allium(7), Citrus(5), Cucumis(4), Cichorium(4) in order contain many species. Among tile edible plants, Chamjuknamu(Cedrela sinensis) is wrongly named Gajuknamu(Ailanthns altissima). And there are others which are called in a wrong way: Endive is wrongly called Chicory, Saeneutaribeoseot, Saesongi and Padeudeknamul(Japanese hornwort), Chamnamul. Gyul and Milgam, Geumgam and Gamgyul, Banana and Pacho, Paprika and Pimang(Pimento) are the names of the same plants. The number of the kinds of edible plants is different in each season. Fall has the most edible plants, and it is followed by spring, summer and winter. The edible parts of plants which are sold at the market are leaves, young sprouts, fruits, grains, roots, stems and petioles.

Effect of Priming and Light Quality on Seed Germintion in Three Campanulan Plants (Priming과 파종후(播種後) 광질처리(光質處理)에 따른 도라지, 더덕, 만삼의 발아율(發芽率))

  • Kang, Jin-Ho;Park, Jin-Seo;Kim, Dong-Il
    • Korean Journal of Medicinal Crop Science
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    • v.5 no.2
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    • pp.139-146
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    • 1997
  • Priming has been used to establish a better standing in practice as controling the seed moisture content after sowing. The experiment was done to measure the effect of priming (material ; concentration ; period) and light quality (red ; white ; dark) after sowing on seed germination and radicle elongation of Campanulaceae (Platycodon grandiflorum ; Codonopsis lanceolata ; C. pilosula) to give an information on their earlier standing establishment. The germination test was carried out with 12 hours irradiation for 9 days after priming treatment. In the darkness, the mean germination rate of all the species was decreased in the order to P. grandiflorum, C. pilosula, C. lanceolata. Their germination and radicle elongation became more inclined when primed with $Ca(CO_3)_2$ or with 50 to 150mM than with $KNO_3$ or no priming although there was no difference between priming periods. Under irradiation during their seed germination, however, the former order was changed to P. grandiflorum, C. lanceolata, C. pilosula because light quality treatment given after priming reduced the rate of C. pilosula but enhanced that of C. lanceolata. Although light quality forced after priming did not affect the mean germination rate of P. grandiflorum, it increased earlier or alltime germination of C. lanceolata or C. pilosula, respectively. White light after priming repressed germinations of C. lanceolata and C. pilosulai but increased earlier germinatin of P. grandiflorum, meaning that seed germination and radicle elongation of Campanulaceae could be determined by light quality treated after priming.

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