Occurrence and anatomical features of growth rings in tropical rainforest trees in Peninsular Malaysia: a preliminary study
The occurrence and anatomical features of growth rings were investigated in tropical tree species in Peninsular Malaysia. The species studied included five species from two plantations, in a tropical monsoon and tropical rainforest climate, and 26 species from a natural forest in a tropical rainfore...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
The Japan Society of Tropical Ecology
2014
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/34698/1/Occurrence%20and%20anatomical%20features%20of%20growth%20rings%20in%20tropical%20rainforest%20trees%20in%20Peninsular%20Malaysia%20a%20preliminary%20study.pdf |
| _version_ | 1796972557488881664 |
|---|---|
| author | Abdul Azim, Amir Affan Okada, Naoki |
| author_facet | Abdul Azim, Amir Affan Okada, Naoki |
| author_sort | Abdul Azim, Amir Affan |
| collection | UPM |
| description | The occurrence and anatomical features of growth rings were investigated in tropical tree species in Peninsular Malaysia. The species studied included five species from two plantations, in a tropical monsoon and tropical rainforest climate, and 26 species from a natural forest in a tropical rainforest climate. Most of the trees were diffuse-porous species, with the exception of Peronema canescens, which was ring-porous. The growth rings were observed macroscopically and microscopically and were classified as having fiber zones, radially flattened fibers, marginal parenchyma, thick-walled fibers, or variations in vessel size and density. Whereas P. canescens from two plantations and Intsia palembanica from the natural forest showed well-defined growth rings, possibly formed annually following environmental stresses, 17 species showed indefinable growth rings and 10 species had no growth rings. Many of the samples presented intermittent growth rings, ambiguous growth rings, discontinuous growth rings, or resin canals and/or traumatic canals that made them difficult to classify. Bands of axial parenchyma were observed macroscopically in Sindora wallichii and Azadirachta excelsa, but microscopic analysis revealed that these bands were formed by concentric traumatic canals. Parenchyma bands with resin ducts or traumatic canals were likely not to be formed periodically. We concluded that some tree species that grow in a tropical rainforest climate do form growth rings and may be used in tree-ring analysis studies. |
| first_indexed | 2024-03-06T08:29:47Z |
| format | Article |
| id | upm.eprints-34698 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:29:47Z |
| publishDate | 2014 |
| publisher | The Japan Society of Tropical Ecology |
| record_format | dspace |
| spelling | upm.eprints-346982016-09-01T01:59:31Z http://psasir.upm.edu.my/id/eprint/34698/ Occurrence and anatomical features of growth rings in tropical rainforest trees in Peninsular Malaysia: a preliminary study Abdul Azim, Amir Affan Okada, Naoki The occurrence and anatomical features of growth rings were investigated in tropical tree species in Peninsular Malaysia. The species studied included five species from two plantations, in a tropical monsoon and tropical rainforest climate, and 26 species from a natural forest in a tropical rainforest climate. Most of the trees were diffuse-porous species, with the exception of Peronema canescens, which was ring-porous. The growth rings were observed macroscopically and microscopically and were classified as having fiber zones, radially flattened fibers, marginal parenchyma, thick-walled fibers, or variations in vessel size and density. Whereas P. canescens from two plantations and Intsia palembanica from the natural forest showed well-defined growth rings, possibly formed annually following environmental stresses, 17 species showed indefinable growth rings and 10 species had no growth rings. Many of the samples presented intermittent growth rings, ambiguous growth rings, discontinuous growth rings, or resin canals and/or traumatic canals that made them difficult to classify. Bands of axial parenchyma were observed macroscopically in Sindora wallichii and Azadirachta excelsa, but microscopic analysis revealed that these bands were formed by concentric traumatic canals. Parenchyma bands with resin ducts or traumatic canals were likely not to be formed periodically. We concluded that some tree species that grow in a tropical rainforest climate do form growth rings and may be used in tree-ring analysis studies. The Japan Society of Tropical Ecology 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/34698/1/Occurrence%20and%20anatomical%20features%20of%20growth%20rings%20in%20tropical%20rainforest%20trees%20in%20Peninsular%20Malaysia%20a%20preliminary%20study.pdf Abdul Azim, Amir Affan and Okada, Naoki (2014) Occurrence and anatomical features of growth rings in tropical rainforest trees in Peninsular Malaysia: a preliminary study. Tropics, 23 (1). pp. 15-31. ISSN 0917-415X; ESSN: 1882-5729 https://www.jstage.jst.go.jp/article/tropics/23/1/23_15/_article 10.3759/tropics.23.15 |
| spellingShingle | Abdul Azim, Amir Affan Okada, Naoki Occurrence and anatomical features of growth rings in tropical rainforest trees in Peninsular Malaysia: a preliminary study |
| title | Occurrence and anatomical features of growth rings in tropical rainforest trees in Peninsular Malaysia: a preliminary study |
| title_full | Occurrence and anatomical features of growth rings in tropical rainforest trees in Peninsular Malaysia: a preliminary study |
| title_fullStr | Occurrence and anatomical features of growth rings in tropical rainforest trees in Peninsular Malaysia: a preliminary study |
| title_full_unstemmed | Occurrence and anatomical features of growth rings in tropical rainforest trees in Peninsular Malaysia: a preliminary study |
| title_short | Occurrence and anatomical features of growth rings in tropical rainforest trees in Peninsular Malaysia: a preliminary study |
| title_sort | occurrence and anatomical features of growth rings in tropical rainforest trees in peninsular malaysia a preliminary study |
| url | http://psasir.upm.edu.my/id/eprint/34698/1/Occurrence%20and%20anatomical%20features%20of%20growth%20rings%20in%20tropical%20rainforest%20trees%20in%20Peninsular%20Malaysia%20a%20preliminary%20study.pdf |
| work_keys_str_mv | AT abdulazimamiraffan occurrenceandanatomicalfeaturesofgrowthringsintropicalrainforesttreesinpeninsularmalaysiaapreliminarystudy AT okadanaoki occurrenceandanatomicalfeaturesofgrowthringsintropicalrainforesttreesinpeninsularmalaysiaapreliminarystudy |