• Research Article

    세잎쥐손이풀(Geranium wilfordii Maxim.) 에탄올 추출물이 지방생성 및 지방합성에 미치는 영향

    Effects of Geranium wilfordii Maxim. Ethanol Extract of on Adipogenesis and Lipogenesis

    Tae Woo Kim, Kyoung Kon Kim, Jae Cheon Im, Hye Rim Lee, Jung Min Kim

    김태우, 김경곤, 임재천, 이혜림, 김정민

    In this study, the anti-obesity effect of Geranium wilfordii Maxim. extract was studied using 3T3-L1 cells. Geranium wilfordii Maxim. was extracted with … + READ MORE
    In this study, the anti-obesity effect of Geranium wilfordii Maxim. extract was studied using 3T3-L1 cells. Geranium wilfordii Maxim. was extracted with water (NG-GT-T1L), 10% ethanol (NG-GT-T2L), 30% ethanol (NG-GT-T3L), 50% ethanol (NG-GT-T4L), 70% ethanol (NG-GT-T5L), and the effects on cell viability, lipid accumulation, triglyceride content, and protein expression in 3T3-L1 cells were confirmed. It was confirmed that NG-GT-T3L extract was superior to other extract conditions in reducing lipid accumulation and triglyceride content in the concentration range that did not show cytotoxicity. In addition, it was confirmed to suppress adipogenesis and lipogenesis by reducing the expression of peroxisome proliferator-activated receptor-gamma (PPARγ) and CCAAT/enhancer binding protein-α(C/EBPα) proteins that regulate adipogenesis, decreasing the expression of fatty acid synthetase (FAS) and stearoyl CoA desaturase-1 (SCD-1) proteins that regulate lipogenesis, and increasing the expression of AMP-activated protein kinase (AMPK) protein. From these research results, Geranium wilfordii Maxim. NG-GT-T3L extract is believed to have anti-obesity reduction effects through suppressing lipid accumulation and triglyceride accumulation and regulating adipogenesis and lipogenesis-related proteins. - COLLAPSE
    1 August 2024
  • Research Article

    Comparison of Extraction Efficacy for Endoparasitic Nematodes Pratylenchus vulnus from Roots

    내부기생성선충 Pratylenchus vulnus 분리 효율 비교

    Sungchan Huh, Namsook Park, Jaeyong Chun, Myoungseung Jeon, Heonil Kang, Insoo Choi

    허성찬, 박남숙, 전재용, 전명승, 강헌일, 최인수

    To speed up the extract of endoparasitic nematodes from roots, four extraction methods with or without root-grinding were compared; 1) immersion, 2) … + READ MORE
    To speed up the extract of endoparasitic nematodes from roots, four extraction methods with or without root-grinding were compared; 1) immersion, 2) immersion + Air, 3) Oostenbrink dish, and 4) Mistifier. The experiments were conducted for nine days by using perilla roots infested with Pratylenchus vulnus. Root-lesion nematodes continuously extracted from perilla roots during the experiments and as much as 3-10% in 9th days. The total number of nematodes extracted from 2 g of perilla root in nine days were varied among methods (379-1,824 nematodes); the most nematodes were extracted by root grinding + immersion + air (1,824) and the root-grinding + mistifier method (1,349) (p = 0.05). In the first two days of extraction, root-grinding + mistifier extracted the most nematodes (725 nematodes), followed by root-grinding + immersion + Air (555 nematodes), and root-grinding + Oostenbrink dish (421 nematodes). Root-grinding effected as much as 16-108% more nematodes extraction when compared to without root-grinding (p = 0.01). - COLLAPSE
    1 August 2024
  • Research Article

    Analysis of Traditional Knowledge Data Types Related to Plants in Seoraksan and Hallasan Biosphere Reserves

    설악산과 한라산 생물권보전지역의 식물 관련 전통지식 자료 유형 분석

    Il Won Lee, Kee Dae Kim

    이일원, 김기대

    To conduct ethnobotanical study that grow wild in biosphere reserves or are traded in nearby traditional markets, we collected and analyzed traditional … + READ MORE
    To conduct ethnobotanical study that grow wild in biosphere reserves or are traded in nearby traditional markets, we collected and analyzed traditional knowledge information on vascular plants that live in Mt. Seorak and Mt. Halla. As a result, the ethnobotanical plants investigated in Mt. Seorak consisted of 102 families and 489 taxa. The ethnobotanical plants investigated in Mt. Halla consisted of 118 families and 374 taxa. Both ethnobotanical plants from Mt. Seorak and Mt. Halla were most widely used for oriental medicine and treatment, and leaves were the most used organ. Differences in diversity by family of ethnobotanical plants inhabiting Mt. Seorak and Mt. Halla showed significant differences only in other use. The ethnobotanical plants traded at the traditional market near Mt. Seorak consists of 59 species in 34 families and 56 genera. The ethnobotanical plants traded at the traditional market near Mt. Halla consists of 102 species in 49 families and 94 genera. All ethnobotanical plants traded in traditional markets were most often used for oriental medicine and treatment, and stems were used most often in the traditional market near Mt. Seorak, and leaves were used most often in the traditional market near Mt. Halla. - COLLAPSE
    1 August 2024
  • Research Article

    A Flora of Vascular Plants in Biryongsan Mt. and Baebawhisan Mt. (Gyeongsangbuk-do)

    비룡산과 배바위산 일대(경상북도)의 관속식물상

    Ho Yeon Kang, Seon Jeong, Jae Young Kim, Hyeong Jun Jo, Gyu Young Chung

    강호연, 정선, 김재영, 조형준, 정규영

    This study was carried out to clarify the distribution of vascular plants in Biryongsan Mt. (1,129 m) and Baebawhisan Mt. (967 m) … + READ MORE
    This study was carried out to clarify the distribution of vascular plants in Biryongsan Mt. (1,129 m) and Baebawhisan Mt. (967 m) (a.s.l., 36° 55´~37° 06´ N, 129° 03´~29° 09´ E), Gyeongsangbuk-do. The surveys were conducted 13 times from April 2019 to August 2022. The vascular plants of Biryongsan Mt. and Baebawhisan Mt. was consisted a total of 570 taxa based on the voucher specimens; 108 families, 334 genera, 506 species, 17 subspecies, 44 varieties, 3 forms. Among them, the Korean endemic plants were 12 taxa. The of number of threatened and near threatened plants, as National Red List of Vascular Plants in Korea designated by the Korean National Arboretum, were 8 taxa, comprising 1 endangered (EN), 3 vulnerable (VU), and 4 near threatened (LC) species. The number of floristic target plants designated by the Ministry of Environment was 104 taxa, including 10 of level IV and 28 of level III. The naturalized plants in this area were 42 taxa. Among 570 taxa, there were 403 edible plants, 461 medicinal plants, 221 industrial plants, 306 ornamental plants, and 17 taxa with unknown usefulness respectively. - COLLAPSE
    1 August 2024
  • Research Article

    Breeding of New Ever-bearing Strawberry ‘Jinha’ with High Soluble Solid Content

    당도가 높은 사계성 딸기 ‘진하’ 육성

    Jong Nam Lee, Jong Taek Suh, Su Jeong Kim, Ki Deog Kim, Hye Jin Kim, Mi Za Choi, Bok Rye Yun, Hwang Bae Shon, Yul Ho Kim, Su Young Hong

    이종남, 서종택, 김수정, 김기덕, 김혜진, 최미자, 윤복례, 손황배, 김율호, 홍수영

    ‘Jinha’ is a new strawberry (Fragaria x ananassa Duch.) cultivar, which was released by the Highland Agriculture Research Institute in 2019. … + READ MORE
    ‘Jinha’ is a new strawberry (Fragaria x ananassa Duch.) cultivar, which was released by the Highland Agriculture Research Institute in 2019. The ‘Jinha’ cultivar originates from a 2011 cross between ‘Albion’ and ‘Goha,’ both of which exhibited excellent ever-bearing characteristics, including continuous flowering and large fruits under long-day and high temperature conditions. This new cultivar was initially named ‘Saebong No. 11’ after examining its characteristics and productivity during summer cultivation between 2012 and 2016. After regional adaptability tests, ‘Jinha’ was selected from ‘Saebong No. 11’ as an elite cultivar. The general characteristics of ‘Jinha’ include intermediate, elliptic leaves, and medium growth. The fruits are conical and of a red color. The plant height of ‘Jinha’ is simiar to that of the control variety, ‘Flamenco’, but it has a lot of number of leaves. The cluster length of ‘Jinha’ was 35.5 ㎝, 10.8 ㎝ longer than 24.7 ㎝ of the control variety. The number of flower clusters of ‘Jinha’ appeared 14.4, which was 4.1 more than that of ‘Flamenco’. The average fruit weight of ‘Jinha’ was 10.1 g, which was 0.8 g heavier than that of ‘Flamenco’. The soluble solid content of ‘Jinha’ was 10.2 ˚Brix, which was 2.0 ˚Brix higher than that of ‘Flamenco’. The marketable yield of ‘Jinha’ was 25,931 ㎏·㏊−1, 440% more than that of ‘Flamenco’ with 5,900 ㎏·㏊−1. Therefore, the new cultivar of ever-bearing strawberry ‘Jinha’ is expected to be very popular in the export or bakery market because it is high soluble solid content and good shape. - COLLAPSE
    1 August 2024
  • Research Article

    Effects of Different Altitudes and Cultivation Methods on Growth and Flowering Characteristics of Elsholtzia splendens

    재배지대와 유형이 꽃향유의 생육 및 개화 특성에 미치는 영향

    Young Min Choi, Jin Jae Lee, Dong Chun Cheong, Hong Ki Kim, Hee Kyung Song, Seung Yoon Lee, So Ra Choi, Hyun Ah Han, Han Na Chu

    최영민, 이진재, 정동춘, 김홍기, 송희경, 이승윤, 최소라, 한현아, 추한나

    This study was conducted to find the flowering and growth characteristics according to the different altitudes (plains and mid-mountain regions) and cultivation … + READ MORE
    This study was conducted to find the flowering and growth characteristics according to the different altitudes (plains and mid-mountain regions) and cultivation methods (field and plastic houses cultivation) of Elsholtzia splendens. Experimental regions located at 12 meters and 500 meters above sea level were selected for the plains and the mid-mountain, respectively, and the same method was applied for cultivation management by different altitudes and cultivation methods. In the mid-mountain region, flower bud emergence (2-3 days), flowering (9 days), and full bloom (6-7 days) stages of Elsholtzia splendens were earlier than in the plains, and field cultivation was earlier than plastic house cultivation. The plant height, the main stem diameter, and the number of branches tended to increase gradually after an initial rapid growth at 59 to 69 days after planting date. The days of duration of sunshine (less than 8 hours) from the rainy season (June 20) to the period when vegetative growth increases gradually (59 to 69 days after planting) was 22 to 29 days and 26 to 35 days in the plains and the mid-mountain regions respectively, and this period was estimated time of transition from vegetative growth to reproductive growth. The spikes growth of Elsholtzia splendens by cultivation altitudes was higher in the mid-mountain region than in the plains, and there were no statistically significant differences in growth characteristics except for the main stem diameter, the number of branches, and the dry matter. Also, the amount of flowering and growth was higher in the plastic house cultivation compared to the field cultivation. As a result, some differences in flowering amount were observed when cultivating Elsholtzia splendens for landscaping purposes, but it was considered possible to cultivate in both plains and mid-mountain regions. This study therefore provides ecological information for understanding the relationship between weather characteristics and growth of Elsholtzia splendens. - COLLAPSE
    1 August 2024
  • Research Article

    The Effects of Virus and Viroid Infections on the Growth and Fruit Quality of ‘Hongro’ Apples

    사과 바이러스와 바이로이드 감염이 ‘홍로’ 사과의 수체 및 과실 특성에 미치는 영향

    Sang-Yun Cho, Hyun Ran Kim, Kang Hee Cho, Se Hee Kim, Byeonghyeon Yun, Sewon Oh, Ji Hae Jun

    조상윤, 김현란, 조강희, 김세희, 윤병현, 오세원, 전지혜

    This study was undertaken to elucidate the effects of virus and viroid infections on the growth of trees and the attributes of … + READ MORE
    This study was undertaken to elucidate the effects of virus and viroid infections on the growth of trees and the attributes of fruit quality in ‘Hongro’ apples. Trials were initiated using virus-infected, viroid-infected, combined virus/viroid-infected, and uninfected apple trees in an experimental apple orchard at the National Institute of Horticultural and Herbal Science in 2019. The growth of each tree was measured annually and compared between virus-free and virus/viroid-infected trees. Fruits were harvested from all apple trees, and selected attributes of fruit quality, including yield, weight, firmness, titratable acidity, and anthocyanin content, were determined in September 2021-2022. The results revealed significant differences among virus-free trees and those infected with either virus, viroid, or a combination of virus and viroid. Infection with viral and viroid diseases led to reductions in tree height (14.0%), trunk area (23.1%), fruit yield (65.0%), fruit weight (34.4%), and anthocyanin content (39.8%), while increasing fruit firmness (33.2%) and titratable acidity (39.8%), respectively. We anticipate that our research findings will also be beneficial for apple virus and viroid disease control, as well as apple cultivation management. - COLLAPSE
    1 August 2024
  • Research Article

    Screening of Valuable Naked Oat (Avena sativa L.) Germplasms through Comparison of Agronomic Traits

    주요 농업형질 비교를 통한 쌀귀리 유용 유전자원 탐색

    Jin-Cheon Park, Chang-Hyun Lee, Young-Mi Yoon, Yu-Young Lee, Myoung-Jae Shin, On-Sook Hur

    박진천, 이창현, 윤영미, 이유영, 신명재, 허온숙

    Naked oat is particularly vulnerable to cold weather among cereal crops, and frequent lodging due to their long culm length. Also it … + READ MORE
    Naked oat is particularly vulnerable to cold weather among cereal crops, and frequent lodging due to their long culm length. Also it is difficult to cultivate in double cropping system with rice because of late maturity in Korea. In this study, we charaterized 71 naked oat germplasms including two control varieties with agronomic traits, to select superior resources and use them for the improvement of exsiting varieties. The maturity date was May 26th for ‘Joyang’ and June 1st for ‘Daeyang’, and there were 5 resources including IT302003, which was earlier than Daeyang. In the case of culm length, the distribution ranged from 62 to 124 ㎝, and there were 13 resources, including IT209241, that were shorter than ‘Joyang’ (84 ㎝) and ‘Daeyang’ (83 ㎝). In correlation analysis of agronomic traits, the highest positive correlation (r=0.89) was observed between days to heading and days to maturity. In addition, culm length and spike length (r=0.72) and days to heading (r=0.50) showed a positive correlation. However, Barley yellow dwarf virus(BYDV) and grain yield (r=-0.30), lodging tolerance and liter weight (r=-0.37) showed a negative correlation. Cluster analysis, resources with similar traits such as liter weight, husk ratio, days to heading, and days to maturing were subclassified. Through this analysis, 6 resources, including IT302002 (X345-1-B4-20-1), which had short culm length, early maturity, and cold tolerance compared to ‘Joyang’ and ‘Daeyang’, were selected. Among the selected excellent resources, the avenanthramide content of the four resources was IT302002 (325.18 ㎍/g), K000010 (557.3㎍/g), K253299 (447.33 ㎍/g), and K253301 (440.49 ㎍/g), respectively, which was higher than ‘Daeyang’ (301.97 ㎍/g). These excellent resources will be used as breeding materials for the development of new varieties in the future. - COLLAPSE
    1 August 2024
  • Research Article

    Breeding of White Colored Cymbidium spp. ‘Wedding Day’ for Cut Flower

    절화특성이 우수한 백색 심비디움 ‘웨딩데이’ 육성

    Yae Jin Kim, Pil Man Park, O Hyeon Kwon, Hye Ryun An, Hyun young Song, Kyung Ran Do, Pue Hee Park

    김예진, 박필만, 권오현, 안혜련, 송현영, 도경란, 박부희

    Cymbidium (C.) spp. 'Wedding Day' was developed by the National Institute of Horticultural and Herbal Science, Rural Development Administration in … + READ MORE
    Cymbidium (C.) spp. 'Wedding Day' was developed by the National Institute of Horticultural and Herbal Science, Rural Development Administration in 2021. This cultivar was derived from the artificial cross between C. ‘Boksam Holiday’ and C. ‘Persicolor’ in 2008. After the crossing, 112 seedlings were obtained through in vitro germination and transferred to the green house. Based on their vegetative and flowering characteristics, two lines were selected through the first selection. To confirm the stability and uniformity of the two lines, the first and second trials were conducted from 2017 to 2021. As a result, the final line with the code ‘C0844-29’ was selected as ‘Wongyuo F1-78’. After evaluating consumer preference, the line was named as ‘Wedding Day’. This hybrid is medium sized cultivar with long vase life of cut flowers and more than 11 white flowers per stalk. It has 63.2 ㎝ of erect stalks which are suitable for cut flower. The leaves are 65.8 ㎝ long and located lower than the flowers, providing appropriate shape for viewing the flowers. It starts flowering from late January. It has sufficient proliferation ability to enable mass proliferation for commercial use (Registration No. 9523). - COLLAPSE
    1 August 2024
  • Research Article

    The Effect of Plant Growth Regulators on Regeneration Rate during Tissue Culture of Hop (Humulus lupulus L.)

    홉(Humulus lupulus L.) 조직배양 시 재분화율에 미치는 식물생장조절제의 영향

    Tae Hyun Ha, Jun-Hyung Lee, So Young Yi, Si-Yong Kang

    하태현, 이준형, 이소영, 강시용

    Hops enhance beer flavor and bitterness, acting as a preservative. In recent years, the booming trend of craft beer has prompted the … + READ MORE
    Hops enhance beer flavor and bitterness, acting as a preservative. In recent years, the booming trend of craft beer has prompted the introduction of foreign hop varieties for cultivation and production in South Korea. This study focuses on developing efficient in vitro culture condition of the hop (Humulus lupulus L.) variety ‘Cascade’ for treatments of plant growth regulators, i.e. IAA and Cytokinin. Using Auxin IAA and Cytokinin 2iP, Zeatin, BAP, and TDZ on MS medium as plant growth regulators, the experiment involved removing three nodes from the shoot apex. In vitro hop culture showed the highest shoot proliferation rate when only IAA was added, with approximately 21% higher compared to the combination with Cytokinin. Notably, IAA 0.1 ㎎/L + BAP 1 ㎎/L resulted in a superior shoot proliferation rate of around 91%. IAA 0.1 ㎎/L + BAP 1 ㎎/L was advantageous for shoot elongation. Callus induction occurred with TDZ, while control or IAA-only conditions exhibited shoot and root growth. Cytokinin addition led to callus formation and increased weight. Assessing survival and soil adaptation during in vitro hop seedling acclimatization involved maintaining near 100% humidity initially, gradually reducing it over three weeks. When transferred outdoors, 9 out of 10 seedlings acclimated successfully, confirming a 90% acclimatization rate. - COLLAPSE
    1 August 2024