Potential genotypes of the 1995 RRIM Hevea germplasm collection for future rubber breeding and selection programme
Malaysia received a large share of the Hevea germplasm collection from the 1995 Rubber Research Institute of Malaysia (RRIM) expedition. About 50,000 wild genotypes of eight Hevea species originating from the state of Amazonas of Brazil are conserved ex-situ in Rantau Panjang Reserve Forest, Batu Ar...
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| Format: | Article |
| Language: | English |
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Springer
2017
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| Online Access: | http://psasir.upm.edu.my/id/eprint/62787/ http://psasir.upm.edu.my/id/eprint/62787/1/Potential%20genotypes%20.pdf |
| _version_ | 1848854665350873088 |
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| author | Ahmad Fauzi, Mohd Adi Faiz N.A., Maiden Noran, Aizat Shamin Ab Ghani, Zarawi Yusop, Mohd Rafii |
| author_facet | Ahmad Fauzi, Mohd Adi Faiz N.A., Maiden Noran, Aizat Shamin Ab Ghani, Zarawi Yusop, Mohd Rafii |
| author_sort | Ahmad Fauzi, Mohd Adi Faiz |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Malaysia received a large share of the Hevea germplasm collection from the 1995 Rubber Research Institute of Malaysia (RRIM) expedition. About 50,000 wild genotypes of eight Hevea species originating from the state of Amazonas of Brazil are conserved ex-situ in Rantau Panjang Reserve Forest, Batu Arang, Selangor. As management of such massive numbers of individuals covering extensive areas is demanding, the wild genotypes planted in this germplasm are evaluated in a phased manner. A total of 5,789 wild genotypes of six Hevea species (Hevea brasiliensis, Hevea spruceana, Hevea guainensis, Hevea nitida, Hevea benthamiana and Hevea pauciflora) originating from different locations in the Amazonas, planted in Phase 1 area (58.88 ha) of this germplasm were assessed for their main characteristics specifically latex yield, clear bole volume, girth at opening, annual girth increment and virgin bark thickness. In general, the wild genotypes of the 1995 RRIM Hevea germplasm produced a considerably low amount of latex yield. Up to 80.84% of these materials were found to produce latex yield of less than 25.00 g/t/t. Nevertheless, Hevea brasiliensis demonstrated superiority compared with the other five Hevea species in this germplasm. Selection of potential genotypes in this germplasm was to gather good performance genotypes as well as to retain as much genetic variability possible. This process was performed using multiple characteristics selection index on latex yield, clear bole volume and girth at opening. The selection process resulted in a working collection consisting 616 potential genotypes of mainly Hevea brasiliensis. Assessment of major leaf diseases revealed that most of the selected genotypes were free from or only lightly affected by Oidium and Colletotrichum secondary leaf fall while all of them were completely free from Corynespora leaf disease and Fusicoccum leaf blight. These selected materials will be used for further evaluation, genetic improvement and incorporation in the Malaysian Rubber Board’s rubber breeding programme for the development of superior latex timber clones. |
| first_indexed | 2025-11-15T11:13:29Z |
| format | Article |
| id | upm-62787 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:13:29Z |
| publishDate | 2017 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-627872022-11-09T01:43:58Z http://psasir.upm.edu.my/id/eprint/62787/ Potential genotypes of the 1995 RRIM Hevea germplasm collection for future rubber breeding and selection programme Ahmad Fauzi, Mohd Adi Faiz N.A., Maiden Noran, Aizat Shamin Ab Ghani, Zarawi Yusop, Mohd Rafii Malaysia received a large share of the Hevea germplasm collection from the 1995 Rubber Research Institute of Malaysia (RRIM) expedition. About 50,000 wild genotypes of eight Hevea species originating from the state of Amazonas of Brazil are conserved ex-situ in Rantau Panjang Reserve Forest, Batu Arang, Selangor. As management of such massive numbers of individuals covering extensive areas is demanding, the wild genotypes planted in this germplasm are evaluated in a phased manner. A total of 5,789 wild genotypes of six Hevea species (Hevea brasiliensis, Hevea spruceana, Hevea guainensis, Hevea nitida, Hevea benthamiana and Hevea pauciflora) originating from different locations in the Amazonas, planted in Phase 1 area (58.88 ha) of this germplasm were assessed for their main characteristics specifically latex yield, clear bole volume, girth at opening, annual girth increment and virgin bark thickness. In general, the wild genotypes of the 1995 RRIM Hevea germplasm produced a considerably low amount of latex yield. Up to 80.84% of these materials were found to produce latex yield of less than 25.00 g/t/t. Nevertheless, Hevea brasiliensis demonstrated superiority compared with the other five Hevea species in this germplasm. Selection of potential genotypes in this germplasm was to gather good performance genotypes as well as to retain as much genetic variability possible. This process was performed using multiple characteristics selection index on latex yield, clear bole volume and girth at opening. The selection process resulted in a working collection consisting 616 potential genotypes of mainly Hevea brasiliensis. Assessment of major leaf diseases revealed that most of the selected genotypes were free from or only lightly affected by Oidium and Colletotrichum secondary leaf fall while all of them were completely free from Corynespora leaf disease and Fusicoccum leaf blight. These selected materials will be used for further evaluation, genetic improvement and incorporation in the Malaysian Rubber Board’s rubber breeding programme for the development of superior latex timber clones. Springer 2017-12 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/62787/1/Potential%20genotypes%20.pdf Ahmad Fauzi, Mohd Adi Faiz and N.A., Maiden and Noran, Aizat Shamin and Ab Ghani, Zarawi and Yusop, Mohd Rafii (2017) Potential genotypes of the 1995 RRIM Hevea germplasm collection for future rubber breeding and selection programme. Journal of Rubber Research, 20 (4). 242 - 260. ISSN 1511-1768; ESSN: 2524-3993 https://link.springer.com/article/10.1007/BF03449155 10.1007/BF03449155 |
| spellingShingle | Ahmad Fauzi, Mohd Adi Faiz N.A., Maiden Noran, Aizat Shamin Ab Ghani, Zarawi Yusop, Mohd Rafii Potential genotypes of the 1995 RRIM Hevea germplasm collection for future rubber breeding and selection programme |
| title | Potential genotypes of the 1995 RRIM Hevea germplasm collection for future rubber breeding and selection programme |
| title_full | Potential genotypes of the 1995 RRIM Hevea germplasm collection for future rubber breeding and selection programme |
| title_fullStr | Potential genotypes of the 1995 RRIM Hevea germplasm collection for future rubber breeding and selection programme |
| title_full_unstemmed | Potential genotypes of the 1995 RRIM Hevea germplasm collection for future rubber breeding and selection programme |
| title_short | Potential genotypes of the 1995 RRIM Hevea germplasm collection for future rubber breeding and selection programme |
| title_sort | potential genotypes of the 1995 rrim hevea germplasm collection for future rubber breeding and selection programme |
| url | http://psasir.upm.edu.my/id/eprint/62787/ http://psasir.upm.edu.my/id/eprint/62787/ http://psasir.upm.edu.my/id/eprint/62787/ http://psasir.upm.edu.my/id/eprint/62787/1/Potential%20genotypes%20.pdf |