• Title/Summary/Keyword: National Institute of Forest Science

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Prediction of Full Blooming Dates of Robinia pseudoacacia using Chill Days Model and Flowering Data from 30 Sites in South Korea over 12 Years (지난 12년간의 전국 30개 지점의 아까시나무 개화 데이터와 순차휴면모델을 활용한 아까시나무의 만개일 예측)

  • Kim, Sukyung;Kim, Taekyung;Lim, Hyemin;Yoon, Sukhee;Jang, Geun-Chang;Won, Myoungsoo;Lim, Jonghwan;Kim, Hyun Seok
    • Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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    • 2019.08a
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    • pp.270-271
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    • 2019
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Evaluation of the Basic Properties for the Korean Major Domestic Wood Species I. Korean Red Pine (Pinus densiflora) in Pyeongchang-gun, Gangwon-do

  • Yonggun PARK;Chul-ki KIM;Hanseob JEONG;Hyun Mi LEE;Kwang-Mo KIM;In-Hwan LEE;Min-Ji KIM;Gyu Bin KWON;Nayoung YOON;Namhee LEE
    • Journal of the Korean Wood Science and Technology
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    • v.52 no.1
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    • pp.87-100
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    • 2024
  • Wood has different properties depending on the species or growth area. Therefore, in order to use wood efficiently, it is necessary to have a proper understanding of the characteristics of wood depending on the species and the appropriate use for them. In particular, in order to effectively use more than 1,000 species of woody plants in South Korea as wood, it is necessary to evaluate the characteristics of various Korean domestic woods and make a database of them. In this study, the anatomical properties (length and width of tracheid, cell wall thickness), physical properties (specific gravity and shrinkage), mechanical properties (bending strength, compressive strength, tensile strength, shear strength, hardness), and chemical composition (ash, extract, lignin, total sugar content) of Korean red pine which was grown in Pyeongchang-gun, Gangwon-do, South Korea were evaluated.

The First Report of Fusarium solani Causing Wilting in Cnidium officinale in Korea

  • Han, Kyeungmin;Lee, Hyoshin;Park, Yun Mi;Jeon, Kwon Seok;Choen, Wonsu;Jung, Chung Ryul
    • Research in Plant Disease
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    • v.27 no.2
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    • pp.76-78
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    • 2021
  • Cnidium officinale is a perennial herb belonging to the family Umbelliferae. Its origin is China and is also distributed in Korea and Japan. In 2017, a phenomenon of browning and wilting of leaves was discovered in the cultivation field of the National Institute of Forest Science, Suwon, Korea. The pathogens isolated from plants were consistent with Fusarium solani as a result of morphological examination and molecular phylogenetic analysis. This is the first record of F. solani on C. officinale in Korea.

Preparation and Characterization of Cellulose Nanofibrils from Lignocellulose Using a Deep Eutectic Solvent Followed by Enzymatic Treatment

  • Eun-Ah ,LEE;Song-Yi, HAN;Gu-Joong, KWON;Jeong-Ki, KIM;Rajkumar, BANDI;Ramakrishna, DADIGALA;Ji-Soo, PARK;Chan-Woo, PARK;Seung-Hwan, LEE
    • Journal of the Korean Wood Science and Technology
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    • v.50 no.6
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    • pp.436-447
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    • 2022
  • Lignocellulose nanofibrils (LCNFs) were prepared using a two-step deep eutectic solvent (DES) and enzymatic pretreatment followed by mechanical defibrillation, and we examined the effects of enzymatic pretreatment conditions on different characteristics of the LCNFs thus obtained. The LCNFs yielded using the two-step DES pretreatment (Enz-LCNF) exhibited a well-defibrillated entangled web-like structure with an average fiber diameter ranging from 15.7 to 20.4 nm. Furthermore, we found that the average diameter and filtration time of the Enz-LCNFs decreased with an increase in enzyme concentration and enzymatic treatment time, whereas we detected a concomitant reduction in the tensile strength of the Enz-LCNF sheets. The Enz-LCNFs were characterized by a typical cellulose I structure, thereby indicating that the enzymatic treatment causes very little damage to the crystalline form.