• Title, Summary, Keyword: Pinus rigida

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Flavor Components of the Needle Oils from Pinus rigida Mill and Pinus densiflora Sieb & Zucc (리기다송(Pinus rigida Mill)과 적송(Pinus densiflora Sieb & Zucc)잎 정유의 향기성분)

  • Choi, Kyoung-Sook;Park, Hyoung-Kook;Kim, Jung-Han;Kim, Yong-Taik;Kwon, Ik-Boo
    • Korean Journal of Food Science and Technology
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    • v.20 no.6
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    • pp.769-773
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    • 1988
  • The needle oils of Pious rigida Mill and Pious densiflora Sieb & Zucc were analyzed by gas chromatography/mass spectrometry. The major components of Pinus rigida were ${\alpha}-pinene$, 1-hexen-3-ol formate, sabinene, ${\beta}-pinene,\;{\alpha}-terpineol$ and ${\beta}-caryophyllene,\;{\alpha}-pinene$, bornyl acetate, ${\beta}-pinene$ and ${\beta}-hpellandrene$ were the major components fo Pious densiflora. Pious densiflora had sweeter and more greenish note than Pines rigida because the bornyl acetate content of Pious densiflora was about three times more than that of Pious rigida.

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The Monoterpenoids in Pinus tyhunbergii, Pinus rigida and Pinus densiflora (곰솔, 리기다소나무 및 소나무의 Monoterpenoids)

  • 강호남;김종희
    • The Korean Journal of Ecology
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    • v.20 no.5
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    • pp.323-328
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    • 1997
  • The monoterpenoids are analysed in leaves and fallen leaves of Pinus species (P. thunbergii, P.. rigida. P. densiflora.). The amount of total monoterpenoids of P. thunbergii was always the highest, and then those of P. rigida and P. densiflora were orderly decreasing (P<0.05). The major monoterpenoids of P. thunbergii, P. rigida and P. densiflora are ${\beta}-pinene$, comphene and sabinene. There was no significant difference among the seasonal variation in monoterpenoids composition (P>0.05), but the concentrations of fenchone and bornyl acetate were varied (P<0.05).

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Bordered Pit Structure Observed by FE-SEM in Main Wood Species of Pinaceae Grown in Korea

  • Ahmed, Sheikh Ali;Chun, Su-Kyoung
    • Journal of the Korea Furniture Society
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    • v.17 no.3
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    • pp.23-28
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    • 2006
  • An experiment was conducted to investigate the pit structure of four kind of pine wood species grown in Korea. Torus diameter, margo width, margo lattice size, diameter of pit aperture and pit border width were taken under consideration for explaining the pit structure difference among Pinus densiflora, Pinus rigida, Pinus koraiensis and Larix kaempferi. Torus diameter was found highest in Pinus rigida and the lowest in Pinus densiflora. Margo lattice size varied with torus diameter. Wider torus lowered the margo lattice size. Highest margo width was found in Pinus rigida while the lowest one was found in Pinus koraiensis. Pit aperture diameter was found highest in Pinus densiflora and lowest in Pinus koraiensis. In Pinus rigida, pit border was found the highest and the lowest was found in Larix kaempferi. Pit aperture diameter and pit border were increased gradually from pith to bark while there was a decreasing trend in the margo lattice size measuring from the pith to bark.

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On the function of the pollens of Pinus rigida Mill., $P. rigida{\times}P. taeda and P. rigida{\times}(P. rigida{\times}P. taeda) grafts$ (Pinus rigida와 그의 잡종송속의 접목활착율과 화분기능에 대하여)

  • 김청석
    • Journal of Plant Biology
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    • v.11 no.1
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    • pp.27-32
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    • 1968
  • In the present experiment as a basic study for establishing a hybrid seed orchard, an observation was made on the survivability of grafts using Pinus rigida as the stock and its hybrids as the sciion, and on the shape and germination of pollen collected from grafted plants. The results are summarized as follows: 1. The hybrid scion of P. rigida.taeda or $P. rigida{\times}(P. rigida.taeda)$ grafted into P. rigida stock showed lower survivability than the homoplastic graftings of P. rigida. 2. Five among the eight eleven-year old scions homoplastically grafted into two-year old stock for the staminate strobile one year after their grafting. 3. There was no difference in the size and germination ability between the pollen collected from homoplastically grafted plant and from the normal one. 4. The pollen collected from the grafted plant is thought to be usable for the control pollination as the germination of such pollen was considerably good.

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Evaluation of antimicrobial activity and total phenolic content of three Pinus species

  • Kim, Hyeusoo;Lee, Byongsoon;Yun, Kyeong Won
    • Journal of Ecology and Environment
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    • v.36 no.1
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    • pp.57-63
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    • 2013
  • This study compared the antimicrobial activity and total phenolic content of three Pinus plants (Pinus densiflora, P. thunbergii, P. rigida) for the first time. The antimicrobial activity of the water fraction of methanol extract of fresh leaves was stronger than that of fallen leaves at any concentrations. The water fraction of crude methanol extract from fresh leaves of P. thunbergii showed a higher growth inhibitory activity against gram-positive and gram-negative bacteria than that of P. densiflora and P. rigida. The results from the disc diffusion method followed by measurements of minimal inhibition concentration (MIC) indicate that Bacillus subtilis was the most sensitive microorganism with the lowest MIC value. The highest total phenolic content was found in fresh leaves of P. rigida and P. thunbergii. The assay showed that the fresh leaves of the three Pinus plants contained higher total phenolic content than fallen leaves of the three plants. The antimicrobial activity was related with the total phenolic content.

Effects of Pinus rigida Allelochemicals on Isozyme Activities during Seed Germination of Cassia mimosoides var.nomame (Pinus rigida Allelochemicals가 차풀종자의 발아과정에서 동위효소의 활성에 미치는 영향)

  • 김용옥;이호준;장남기
    • The Korean Journal of Ecology
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    • v.20 no.2
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    • pp.103-109
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    • 1997
  • Eleven phenolic compounds including caffeic acid were identified through analyzing the aqueous extracts of Pinus rigida by HPLC. Among them, protocatechuic acid was the maximum amount of 6.84 ppm. Seed germination of Cassia mimosoides var. nomame was significantly stimulated by the extract of P. rigida leaves in the proportion ot concentration. However, root growth was elevalted at a threshold concentration below 25%, but it was inhibited at high concentrations. In 50% extract of P. rigida, upward root tip of C. mimosoides var. nomame showed negageotropism which the root end showed necrosis. New isozyme bands were induced indicating concentration activity of peroxidase from the extract of C. mimosoides var. nomame, especially in the cathodic region. Although it reduced the mumber of isozyme bands of esterase, esterase activities were stimulated in the anodic region of C. mimosoides var. nomame. The activity of amylase was not remarkably different between control and treatment.

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Investigation on the shade tolerance of Pinus rigida, P. Thunbergii and Buxus Koreana (천연경신(天然更新)의 요건(要件)으로서의 리기다소나무 곰솔 및 회양목의 내음성(耐陰性)의 조사(調査))

  • Kim, Tai Wook
    • Journal of Korean Society of Forest Science
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    • v.4 no.1
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    • pp.33-38
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    • 1965
  • It has already been noted that some tree species, denoted as tolerant species, endure to behavior shadiness in growth than those species, denoted as intolerant species, since this fact of tolerance must be involved in silvicultural practice, the present author, with pinus rigida, pinus Thunbergii, and Buxus koreana, investigated the relation of degree of shadiness to soil moisture condition. Because tolerant and intolerant trees must be considered from the standpoint of their ability to use any of the factors that are likely to be at low concentration in the dense or open forest. The observed results may be summarized as follows : 1. The ability of tolerance of the species to shadiness is differently concluded by the base with which the analysis was made, i.c. Height, growth, diameter growth, T-R ratio or dry matter increase and so on. Regarding this point root collar increment or dry matter increase were considered more reasonable bases for discussing the tolerability. 2. When total length growth, including both stem and root, is taken as standard for the comparison of the ability of tolerance for each species, higher soil moisture condition and thicker shadeniss lessened the ability of pinus rigida, seedlings. Pinus Thunbergii, showed. However more moisture resistant than pinus rigida. Buxus koreana, seemed to have stronger ability of tolerance than any others. 3. When total dry matter content taken as standard, the results obtained are given in Fig, 3. In pinus rigida, the soil moisture supplemented the lack of light.

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Nitrogen and Phosphorus Retranslocation in Foliage and Twig of Pinus rigida and Larix leptolepis (리기다소나무와 낙엽송 침엽 및 소지에서의 질소와 인의 재분배 연구)

  • 손요환;이임균;황재홍
    • The Korean Journal of Ecology
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    • v.20 no.4
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    • pp.259-264
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    • 1997
  • To determine patterns of nitrogen (N) and phosphorus (P) change in foliage and twig we collected branch samples of 40-year-old Pinus rigida and Larix leptolepis plantations every month during the growing season of 1996 in Yangpyeong, Kyonggi-Do. Significant seasonal differences on N and P concentrations in foliage and twig were observed for both study species because of nutrient retranslocation. P. rigida and L. leptolepis retranslocated 40 and 37% of foliar N and 86 and 16% of foliar P, respectively. Twig N and P retranslocation rates of P. rigida and L. leptolepis were 114 and 25%, and 42 and 70%, respectively. There were no significant differences in foliar N retranslocation rates between P. rigida and L. leptolepis while P retranslocation rate in foliage of P. rigida was higher than that of L. leptolepis. Our results suggested that twigs were the main sinks for retranslocated nutrients from foliages of the both study species.

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Grouth of Pinus Taeda Linn. in Kwang-yang district (전남광양지방(全南光陽地方)의 테다소나무의 성장(成長))

  • Park, Meung Gue
    • Journal of Korean Society of Forest Science
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    • v.4 no.1
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    • pp.46-53
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    • 1965
  • Comparisons in growth among 6-, 8-, and 11-year-old plantations of Pinus Taeda and Pinus rigida and 6-year-old Pinus rigitaeda growing in Kwang-yang district, southern part of South Korea, were made. They were so planted to facilitate the comparison by alternate row mixture. The results investigated can be concluded as follows: 1. The Pinus Taeda showed the highest growth and the lowest was Pinus rigida. The hybrid between Pinus Taeda and rigida was middle in height growth. 2. By stem analysis showed Pinus Taeda was about twice as much in the volume growth as pinus rigida. 3. Though Pinus Taeda is more sensitive to low temperature than that of Pinus rigida generally, no damage caused by coldness was observed in plantation of Pinus Taeda in Kwang-yang area. 4. Some protections against wind damage in young Pinus Taeda plantation are needed.

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Variation of Microfibril Angle Within Stems of Three Commercial Softwoods Grown in Korea (국내산 주요 침엽수 3종의 수간 내 마이크로피브릴 경사각의 변이)

  • Eun, Dong-Jin;Kim, Nam-Hun
    • Journal of the Korean Wood Science and Technology
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    • v.36 no.4
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    • pp.77-83
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    • 2008
  • Radial and axial variations of microfibril angle (MFA) within stems of three commercial softwoods (Pinus densiflora, Pinus koraiensis and Pinus rigida) grown in Korea were examined by iodine crystal deposition method. The average MFA were $16.4^{\circ}$ in Pinus densiflora, 14.4, in Pinus koraiensis, and $26.2^{\circ}$ in Pinus rigida, respectively. The MFA in earlywood and latewood decreased with age to about 15~20 years, and then remained almost constant. The MFA of latewood was slightly smaller than that of earlywood. The MFA in the three species was a little smaller at the base of stem and decreased slightly with increasing tree height, but no significant difference by height was identified only in earlywood of Pinus rigida. Consequently, it was considered that the MFA could be an useful index for identifying juvenile wood and adult wood of Pinus densiflora, Pinus. koraiensis and Pinus rigida.