THE RELATIONSHIPS BETWEEN FIBER DIMENSIONS AND GROWTH RATE IN POPULUS NIGRA

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

EFHAMISISI D.; KARIMI A.N.; POURTAHMASI K.; ASADI F.

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

Journal Paper

Paper Information

Journal: Journal of Wood and Forest Science and Technology Year:2016 | Volume:23 | Issue:SUPPLEMENT 2 Page(s): 169-183

Download Full-Text

Persian Verion

View:

700

Download:

Cites:

Information Journal Paper

Title

THE RELATIONSHIPS BETWEEN FIBER DIMENSIONS AND GROWTH RATE IN POPULUS NIGRA

Author(s)

EFHAMISISI D. | KARIMI A.N. | POURTAHMASI K. | ASADI F. | Issue Writer Certificate

Keywords

FIBER DIMENSIONSQ1

DIAMETER GROWTHQ3

CIRCUMFERENCE GROWTHQ1

CAMBIAL DIVISIONSQ1

POPLAR TREEQ1

Abstract

Background and objectives: In most cases, the goal of silvicultural practices is to increase diameter and height of the trees. In turn, any change in growth rate and growth pattern of trees may result in wood variation. On the other hand, the technical properties of wood and items made from the wood are strongly depended to the wood anatomical characteristics particularly fibers length. In this paper the effect of growth rate of POPLAR TREEs was studied on the wood fibers biometry.Materials and methods: Young POPLAR TREEs (Populus nigra) were selected from a trial cultivation near Karaj city, Iran. Fifteen 10-year old trees were cut and a disc with 20 mm thick was taken at breast height from each tree, then selected discs were transferred to the laboratory. The cut trees were classified into the 3 classes based on the growth rate: slow growing, moderate growing, and fast growing, with 5 trees in each class. Thereafter, DIAMETER GROWTH, CIRCUMFERENCE GROWTH, and fiber biometric parameters were measured for each separated annual ring. The results were analyzed using different statistical methods and the correlation between different items and their variation was evaluated from pith to bark. The relationships between different parameters were studied in the annual rings with same cambial age in order to eliminate possible effects of age.Results: In young POPLAR TREEs, correlations were insignificant between FIBER DIMENSIONS and growth rate in most of the rings. However, there were some positive and significant correlations between growth rate and fiber length. Thecorrelation coefficients between CIRCUMFERENCE GROWTH and fiber length were higher than those obtained between DIAMETER GROWTH and fiber length. Despite the insignificant effect of growth rate on fiber biometry, whole-disk FIBER DIMENSIONS which were weighted based on the growth area of each ring increased as measured by stem diameter. In fast-growing trees, distant rings from the pith have higher shares in the disc than slower growing trees. Since these rings have longer fibers compared with the rings closer to the pith, the average length of fibers in fastgrowing trees becomes higher.Conclusion: The CIRCUMFERENCE GROWTH is a better proxy than DIAMETER GROWTH for the study of relationships between the growth rate and the fibers biometry.Unexpectedly, the correlation between growth rate and fiber length not only was not negative but also was positive in some of the rings. Whole disc weighted FIBER DIMENSIONS increased as the tree diameter increased, which shows that increase in growth rate of young POPLAR TREEs has no decreasing effect on FIBER DIMENSIONS. It looks that result obtained here with young POPLAR TREEs is extensible for all the silvicultural practices that may affect the growth rate.

Cites

No record.

References

No record.

Cite

APA: Copy

EFHAMISISI, D., KARIMI, A.N., POURTAHMASI, K., & ASADI, F.. (2016). THE RELATIONSHIPS BETWEEN FIBER DIMENSIONS AND GROWTH RATE IN POPULUS NIGRA. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, 23(SUPPLEMENT 2), 169-183. SID. https://sid.ir/paper/156701/en

Vancouver: Copy

EFHAMISISI D., KARIMI A.N., POURTAHMASI K., ASADI F.. THE RELATIONSHIPS BETWEEN FIBER DIMENSIONS AND GROWTH RATE IN POPULUS NIGRA. JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY[Internet]. 2016;23(SUPPLEMENT 2):169-183. Available from: https://sid.ir/paper/156701/en

IEEE: Copy

D. EFHAMISISI, A.N. KARIMI, K. POURTAHMASI, and F. ASADI, “THE RELATIONSHIPS BETWEEN FIBER DIMENSIONS AND GROWTH RATE IN POPULUS NIGRA,” JOURNAL OF WOOD AND FOREST SCIENCE AND TECHNOLOGY, vol. 23, no. SUPPLEMENT 2, pp. 169–183, 2016, [Online]. Available: https://sid.ir/paper/156701/en

Related Journal Papers