Growth differences and genetic parameter estimates of 15 teak (Tectona grandis L.f.) genotypes of various ages clonally propagated by microcuttings and planted under humid tropical conditions
Fifteen clones of teak (Tectona grandis) produced by micropropagation from 0.5 to more than 60 yr-old selected ortets were established in a clonal test in Sabah (East Malaysia) under 2500 mm of annual rainfall to compare their growth performances during the first 7 years of development. Field establishment was good with average mortality less than 10%. The clones developed rapidly true-to-type with significant between-clone differences in growth. Ranges of clone means were 13.6 to 19.3 m in height, 16.3 to 23.4 cm in diameter at breast height (DBH) and 129 to 264 dm3 in volume. Broad sense heritability estimates for these growth traits were lower overall for single trees (H2i) than for clone means (H2c) (H2i ? 0.257 vs H2c ? 0.634 for height, H2i ? 0.120 vs H2c ? 0.383 for DBH and H2i ? 0.125 vs H2c ? 0.364 for volume). The highest genetic gain that could be expected from the best three clones out of the fifteen compared was at age 2 for height (+0.66 m, or +11.7%), and age 3 for DBH (+0.87cm, or +10.4%) and volume (+4.65 dm3, or +15.7%). Age-related phenotypic correlation values were reliably (P < 0.0001) higher and more consistent for DBH (rP ? 0.61) than for height (0.37 ? rP ? 0.69), or than between DBH and height, except for height at 3 (0.51 ? rP ? 0.63) and 6 (0.55 ? rP ? 0.69) years. Height and DBH were moderately to highly genetically correlated (0.54 ? rG ? 0.90).
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Subjects: | F62 - Physiologie végétale - Croissance et développement, F02 - Multiplication végétative des plantes, F30 - Génétique et amélioration des plantes, K10 - Production forestière, Tectona grandis, http://aims.fao.org/aos/agrovoc/c_7648, http://aims.fao.org/aos/agrovoc/c_4533, |
Online Access: | http://agritrop.cirad.fr/571913/ http://agritrop.cirad.fr/571913/1/document_571913.pdf |
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dig-cirad-fr-5719132022-04-05T13:43:18Z http://agritrop.cirad.fr/571913/ http://agritrop.cirad.fr/571913/ Growth differences and genetic parameter estimates of 15 teak (Tectona grandis L.f.) genotypes of various ages clonally propagated by microcuttings and planted under humid tropical conditions. Goh Doreen Kim Soh, Japarudin Yani, Alwi A., Lapammu M., Flori Albert, Monteuuis Olivier. 2013. Silvae Genetica, 62 (4-5) : 196-206.https://doi.org/10.1515/sg-2013-0024 <https://doi.org/10.1515/sg-2013-0024> Researchers Growth differences and genetic parameter estimates of 15 teak (Tectona grandis L.f.) genotypes of various ages clonally propagated by microcuttings and planted under humid tropical conditions Goh, Doreen Kim Soh Japarudin, Yani Alwi, A. Lapammu, M. Flori, Albert Monteuuis, Olivier eng 2013 Silvae Genetica F62 - Physiologie végétale - Croissance et développement F02 - Multiplication végétative des plantes F30 - Génétique et amélioration des plantes K10 - Production forestière Tectona grandis http://aims.fao.org/aos/agrovoc/c_7648 Malaisie http://aims.fao.org/aos/agrovoc/c_4533 Fifteen clones of teak (Tectona grandis) produced by micropropagation from 0.5 to more than 60 yr-old selected ortets were established in a clonal test in Sabah (East Malaysia) under 2500 mm of annual rainfall to compare their growth performances during the first 7 years of development. Field establishment was good with average mortality less than 10%. The clones developed rapidly true-to-type with significant between-clone differences in growth. Ranges of clone means were 13.6 to 19.3 m in height, 16.3 to 23.4 cm in diameter at breast height (DBH) and 129 to 264 dm3 in volume. Broad sense heritability estimates for these growth traits were lower overall for single trees (H2i) than for clone means (H2c) (H2i ? 0.257 vs H2c ? 0.634 for height, H2i ? 0.120 vs H2c ? 0.383 for DBH and H2i ? 0.125 vs H2c ? 0.364 for volume). The highest genetic gain that could be expected from the best three clones out of the fifteen compared was at age 2 for height (+0.66 m, or +11.7%), and age 3 for DBH (+0.87cm, or +10.4%) and volume (+4.65 dm3, or +15.7%). Age-related phenotypic correlation values were reliably (P < 0.0001) higher and more consistent for DBH (rP ? 0.61) than for height (0.37 ? rP ? 0.69), or than between DBH and height, except for height at 3 (0.51 ? rP ? 0.63) and 6 (0.55 ? rP ? 0.69) years. Height and DBH were moderately to highly genetically correlated (0.54 ? rG ? 0.90). article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/571913/1/document_571913.pdf application/pdf Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1515/sg-2013-0024 10.1515/sg-2013-0024 info:eu-repo/semantics/altIdentifier/doi/10.1515/sg-2013-0024 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1515/sg-2013-0024 |
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F62 - Physiologie végétale - Croissance et développement F02 - Multiplication végétative des plantes F30 - Génétique et amélioration des plantes K10 - Production forestière Tectona grandis http://aims.fao.org/aos/agrovoc/c_7648 http://aims.fao.org/aos/agrovoc/c_4533 F62 - Physiologie végétale - Croissance et développement F02 - Multiplication végétative des plantes F30 - Génétique et amélioration des plantes K10 - Production forestière Tectona grandis http://aims.fao.org/aos/agrovoc/c_7648 http://aims.fao.org/aos/agrovoc/c_4533 |
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F62 - Physiologie végétale - Croissance et développement F02 - Multiplication végétative des plantes F30 - Génétique et amélioration des plantes K10 - Production forestière Tectona grandis http://aims.fao.org/aos/agrovoc/c_7648 http://aims.fao.org/aos/agrovoc/c_4533 F62 - Physiologie végétale - Croissance et développement F02 - Multiplication végétative des plantes F30 - Génétique et amélioration des plantes K10 - Production forestière Tectona grandis http://aims.fao.org/aos/agrovoc/c_7648 http://aims.fao.org/aos/agrovoc/c_4533 Goh, Doreen Kim Soh Japarudin, Yani Alwi, A. Lapammu, M. Flori, Albert Monteuuis, Olivier Growth differences and genetic parameter estimates of 15 teak (Tectona grandis L.f.) genotypes of various ages clonally propagated by microcuttings and planted under humid tropical conditions |
description |
Fifteen clones of teak (Tectona grandis) produced by micropropagation from 0.5 to more than 60 yr-old selected ortets were established in a clonal test in Sabah (East Malaysia) under 2500 mm of annual rainfall to compare their growth performances during the first 7 years of development. Field establishment was good with average mortality less than 10%. The clones developed rapidly true-to-type with significant between-clone differences in growth. Ranges of clone means were 13.6 to 19.3 m in height, 16.3 to 23.4 cm in diameter at breast height (DBH) and 129 to 264 dm3 in volume. Broad sense heritability estimates for these growth traits were lower overall for single trees (H2i) than for clone means (H2c) (H2i ? 0.257 vs H2c ? 0.634 for height, H2i ? 0.120 vs H2c ? 0.383 for DBH and H2i ? 0.125 vs H2c ? 0.364 for volume). The highest genetic gain that could be expected from the best three clones out of the fifteen compared was at age 2 for height (+0.66 m, or +11.7%), and age 3 for DBH (+0.87cm, or +10.4%) and volume (+4.65 dm3, or +15.7%). Age-related phenotypic correlation values were reliably (P < 0.0001) higher and more consistent for DBH (rP ? 0.61) than for height (0.37 ? rP ? 0.69), or than between DBH and height, except for height at 3 (0.51 ? rP ? 0.63) and 6 (0.55 ? rP ? 0.69) years. Height and DBH were moderately to highly genetically correlated (0.54 ? rG ? 0.90). |
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topic_facet |
F62 - Physiologie végétale - Croissance et développement F02 - Multiplication végétative des plantes F30 - Génétique et amélioration des plantes K10 - Production forestière Tectona grandis http://aims.fao.org/aos/agrovoc/c_7648 http://aims.fao.org/aos/agrovoc/c_4533 |
author |
Goh, Doreen Kim Soh Japarudin, Yani Alwi, A. Lapammu, M. Flori, Albert Monteuuis, Olivier |
author_facet |
Goh, Doreen Kim Soh Japarudin, Yani Alwi, A. Lapammu, M. Flori, Albert Monteuuis, Olivier |
author_sort |
Goh, Doreen Kim Soh |
title |
Growth differences and genetic parameter estimates of 15 teak (Tectona grandis L.f.) genotypes of various ages clonally propagated by microcuttings and planted under humid tropical conditions |
title_short |
Growth differences and genetic parameter estimates of 15 teak (Tectona grandis L.f.) genotypes of various ages clonally propagated by microcuttings and planted under humid tropical conditions |
title_full |
Growth differences and genetic parameter estimates of 15 teak (Tectona grandis L.f.) genotypes of various ages clonally propagated by microcuttings and planted under humid tropical conditions |
title_fullStr |
Growth differences and genetic parameter estimates of 15 teak (Tectona grandis L.f.) genotypes of various ages clonally propagated by microcuttings and planted under humid tropical conditions |
title_full_unstemmed |
Growth differences and genetic parameter estimates of 15 teak (Tectona grandis L.f.) genotypes of various ages clonally propagated by microcuttings and planted under humid tropical conditions |
title_sort |
growth differences and genetic parameter estimates of 15 teak (tectona grandis l.f.) genotypes of various ages clonally propagated by microcuttings and planted under humid tropical conditions |
url |
http://agritrop.cirad.fr/571913/ http://agritrop.cirad.fr/571913/1/document_571913.pdf |
work_keys_str_mv |
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