GENETIC VARIATION OBSERVED IN COMPOSITE SEEDLING SEED ORCHARD OF Acacia mangium Willd. AT CENTRAL JAVA, INDONESIA : IMPLICATIONS FOR INCREASING GENETIC GAIN AND SEED PRODUCTION
As part of multiple-population breeding scheme using sub-lining system, a composite seedling seed orchard of was established at Central Java, Indonesia. The orchard comprises a combination of the best 40 plus tree families selected from four sub-lines in the first-generation of Acacia mangium progen...
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| Format: | Article |
| Language: | English |
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Ministry of Environment and Forestry
2012-12-01
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| Series: | Indonesian Journal of Forestry Research |
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| Online Access: | http://ejournal.forda-mof.org/ejournal-litbang/index.php/IJFR/article/view/32 |
| _version_ | 1811318195559071744 |
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| author | Arif Nirsatmanto |
| author_facet | Arif Nirsatmanto |
| author_sort | Arif Nirsatmanto |
| collection | DOAJ |
| description | As part of multiple-population breeding scheme using sub-lining system, a composite seedling seed orchard of was established at Central Java, Indonesia. The orchard comprises a combination of the best 40 plus tree families selected from four sub-lines in the first-generation of Acacia mangium progeny trial. The design of orchard is randomized complete block laid-out as four line tree-plot of six replications with a spacing of 2 x 4 meter. Variation among sub-lines and families within sub-line, and
genetic parameters for height, dbh and volume were investigated at age of 24 months. The aim of this study was to investigate genetic variation for growth traits in a composite seedling seed orchard and to
discuss the implication for increasing genetic gain and seed production. In general, trees derived from two sub-lines of Papua New Guinea (PNG) provenance showed better growth than those from Far North Queensland, Australia (FNQ). Analysis of variance revealed significant differences among sublines and families within sub-line for height, dbh and volume. Variation of the traits among families within sub-line accounted for 1.1% to 5.0%, and trees within family 43.8% to 65.8%. Heritability varied from 0.044 to 0.201 for individual, 0.060 to 0.229 for within-family and 0.098 to 0.383 for family. Withinfamily selection promoted high genetic gain for all traits, ranging from 1.3% to 4.4%. In order to increase genetic gain and seed productivity, it is recommended that:(1) the best plus trees included in the orchard should be selected based on their progeny test, (2) the design of plot size should be single treeplot, (3) the final density of seed trees should be twice greater than the number of trees intended for
seed collection, which is about 300 trees per hectare. |
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| id | doaj.art-7a8e8efeedb14b50958c6d3a045fde2f |
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| issn | 2355-7079 2406-8195 |
| language | English |
| last_indexed | 2024-04-13T12:21:36Z |
| publishDate | 2012-12-01 |
| publisher | Ministry of Environment and Forestry |
| record_format | Article |
| series | Indonesian Journal of Forestry Research |
| spelling | doaj.art-7a8e8efeedb14b50958c6d3a045fde2f2022-12-22T02:47:11ZengMinistry of Environment and ForestryIndonesian Journal of Forestry Research2355-70792406-81952012-12-0192919910.20886/ijfr.2012.9.2.91-9932GENETIC VARIATION OBSERVED IN COMPOSITE SEEDLING SEED ORCHARD OF Acacia mangium Willd. AT CENTRAL JAVA, INDONESIA : IMPLICATIONS FOR INCREASING GENETIC GAIN AND SEED PRODUCTIONArif Nirsatmanto0Center for Forest Biotechnology and Tree Improvement Research, YogyakartaAs part of multiple-population breeding scheme using sub-lining system, a composite seedling seed orchard of was established at Central Java, Indonesia. The orchard comprises a combination of the best 40 plus tree families selected from four sub-lines in the first-generation of Acacia mangium progeny trial. The design of orchard is randomized complete block laid-out as four line tree-plot of six replications with a spacing of 2 x 4 meter. Variation among sub-lines and families within sub-line, and genetic parameters for height, dbh and volume were investigated at age of 24 months. The aim of this study was to investigate genetic variation for growth traits in a composite seedling seed orchard and to discuss the implication for increasing genetic gain and seed production. In general, trees derived from two sub-lines of Papua New Guinea (PNG) provenance showed better growth than those from Far North Queensland, Australia (FNQ). Analysis of variance revealed significant differences among sublines and families within sub-line for height, dbh and volume. Variation of the traits among families within sub-line accounted for 1.1% to 5.0%, and trees within family 43.8% to 65.8%. Heritability varied from 0.044 to 0.201 for individual, 0.060 to 0.229 for within-family and 0.098 to 0.383 for family. Withinfamily selection promoted high genetic gain for all traits, ranging from 1.3% to 4.4%. In order to increase genetic gain and seed productivity, it is recommended that:(1) the best plus trees included in the orchard should be selected based on their progeny test, (2) the design of plot size should be single treeplot, (3) the final density of seed trees should be twice greater than the number of trees intended for seed collection, which is about 300 trees per hectare.http://ejournal.forda-mof.org/ejournal-litbang/index.php/IJFR/article/view/32Acacia mangiumsub-lining systemcomposite seedling seed orchardseed production Acacia mangium |
| spellingShingle | Arif Nirsatmanto GENETIC VARIATION OBSERVED IN COMPOSITE SEEDLING SEED ORCHARD OF Acacia mangium Willd. AT CENTRAL JAVA, INDONESIA : IMPLICATIONS FOR INCREASING GENETIC GAIN AND SEED PRODUCTION Indonesian Journal of Forestry Research Acacia mangium sub-lining system composite seedling seed orchard seed production Acacia mangium |
| title | GENETIC VARIATION OBSERVED IN COMPOSITE SEEDLING SEED ORCHARD OF Acacia mangium Willd. AT CENTRAL JAVA, INDONESIA : IMPLICATIONS FOR INCREASING GENETIC GAIN AND SEED PRODUCTION |
| title_full | GENETIC VARIATION OBSERVED IN COMPOSITE SEEDLING SEED ORCHARD OF Acacia mangium Willd. AT CENTRAL JAVA, INDONESIA : IMPLICATIONS FOR INCREASING GENETIC GAIN AND SEED PRODUCTION |
| title_fullStr | GENETIC VARIATION OBSERVED IN COMPOSITE SEEDLING SEED ORCHARD OF Acacia mangium Willd. AT CENTRAL JAVA, INDONESIA : IMPLICATIONS FOR INCREASING GENETIC GAIN AND SEED PRODUCTION |
| title_full_unstemmed | GENETIC VARIATION OBSERVED IN COMPOSITE SEEDLING SEED ORCHARD OF Acacia mangium Willd. AT CENTRAL JAVA, INDONESIA : IMPLICATIONS FOR INCREASING GENETIC GAIN AND SEED PRODUCTION |
| title_short | GENETIC VARIATION OBSERVED IN COMPOSITE SEEDLING SEED ORCHARD OF Acacia mangium Willd. AT CENTRAL JAVA, INDONESIA : IMPLICATIONS FOR INCREASING GENETIC GAIN AND SEED PRODUCTION |
| title_sort | genetic variation observed in composite seedling seed orchard of acacia mangium willd at central java indonesia implications for increasing genetic gain and seed production |
| topic | Acacia mangium sub-lining system composite seedling seed orchard seed production Acacia mangium |
| url | http://ejournal.forda-mof.org/ejournal-litbang/index.php/IJFR/article/view/32 |
| work_keys_str_mv | AT arifnirsatmanto geneticvariationobservedincompositeseedlingseedorchardofacaciamangiumwilldatcentraljavaindonesiaimplicationsforincreasinggeneticgainandseedproduction |