مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

video

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

sound

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Version

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View:

331
مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Download:

189
مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Cites:

Information Journal Paper

Title

THE EFFECT OF ALTITUDE ON JUVENILE WOOD FORMATION AND FIBER LENGTH, A CASE STUDY IN IRANIAN BEECH WOOD (FAGUS ORIENTALIS)

Pages

  221-231

Abstract

 The mean fiber length of three BEECH trees (Fagus orientalis L.) at the lower and higher points (1% and 75% tree height) of the stem at an INTERMEDIATE ALTITUDE (500-1000m) in the Caspian forests in Sari region were 1.36 and 1.22mm respectively, close to the values in three trees at HIGH ALTITUDE (1000-1500m), that were found to be 1.39 and 1.36 mm. The mean fiber lengths of the whole stem, using stem formula, were considered as 1.31 and 1.38mm at intermediate and HIGH ALTITUDEs and so were very close each other. JUVENILE WOOD portions in the stem comprised 17 annual rings, which took up 7.3% of the stem by volume at INTERMEDIATE ALTITUDE. At HIGH ALTITUDE, these values were obtained as 18 annual growth rings, and 8.75% JUVENILE WOOD in the stem. The reason for greater JUVENILE WOOD at HIGH ALTITUDE was somehow a wider ring width at higher elevation. The mean ring width of lower and upper points of the stem at INTERMEDIATE ALTITUDE were found to be 1.82 and 2.95mm respectively; meanwhile, at HIGH ALTITUDE, the findings were 2.97, 3.37mm. Despite the data obtained, t- test comparison was conducted between mean fiber lengths of the two heights of the stems at two altitudes, and no significant differences were found at the 1% level. The EXPLOITATION AGE was strongly dependent on how much JUVENILE WOOD there was in the stems, that at HIGH ALTITUDE was greater than at intermediate. However, statistical comparison showed no significant differences between that and the 1% level. Therefore, altitude in the range of about 500m showed no important impact on BEECH fiber length, EXPLOITATION AGE or JUVENILE WOOD border in Caspian forests.

Cites

  • No record.

    • References

  • No record.

    • Cite

    APA: Copy

    HOSSEINI, S.Z.A.D.. (2006). THE EFFECT OF ALTITUDE ON JUVENILE WOOD FORMATION AND FIBER LENGTH, A CASE STUDY IN IRANIAN BEECH WOOD (FAGUS ORIENTALIS). JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST), 8(3), 221-231. SID. https://sid.ir/paper/549034/en

    Vancouver: Copy

    HOSSEINI S.Z.A.D.. THE EFFECT OF ALTITUDE ON JUVENILE WOOD FORMATION AND FIBER LENGTH, A CASE STUDY IN IRANIAN BEECH WOOD (FAGUS ORIENTALIS). JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST)[Internet]. 2006;8(3):221-231. Available from: https://sid.ir/paper/549034/en

    IEEE: Copy

    S.Z.A.D. HOSSEINI, “THE EFFECT OF ALTITUDE ON JUVENILE WOOD FORMATION AND FIBER LENGTH, A CASE STUDY IN IRANIAN BEECH WOOD (FAGUS ORIENTALIS),” JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST), vol. 8, no. 3, pp. 221–231, 2006, [Online]. Available: https://sid.ir/paper/549034/en

    Related Journal Papers

  • No record.

    • Related Seminar Papers

  • No record.

    • Related Plans

  • No record.

    • Recommended Workshops






    Move to top
    telegram sharing button
    whatsapp sharing button
    linkedin sharing button
    twitter sharing button
    email sharing button
    email sharing button
    email sharing button
    sharethis sharing button