Early Field Performance and Genetic Variation of <i>Dalbergia tonkinensis</i>, a Valuable Rosewood in Vietnam
<i>Dalbergia tonkinensis</i> is being promoted in Vietnam for the future supply of prized wood for furniture and chemical extraction. Expansion of the plantation area requires a reliable source of quality seed. This study evaluates the field performance of progeny from mature mother tree...
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| Format: | Article |
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MDPI AG
2022-11-01
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| Series: | Forests |
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| Online Access: | https://www.mdpi.com/1999-4907/13/12/1977 |
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| author | Bernard Dell Pham Quang Thu Nguyen Hoang Nghia Phi Hong Hai Nong Phuong Nhung Nguyen Minh Chi |
| author_facet | Bernard Dell Pham Quang Thu Nguyen Hoang Nghia Phi Hong Hai Nong Phuong Nhung Nguyen Minh Chi |
| author_sort | Bernard Dell |
| collection | DOAJ |
| description | <i>Dalbergia tonkinensis</i> is being promoted in Vietnam for the future supply of prized wood for furniture and chemical extraction. Expansion of the plantation area requires a reliable source of quality seed. This study evaluates the field performance of progeny from mature mother trees in natural forests and urban environments. Trials were established in Tan Son and Doan Hung districts of Phu Tho province and assessed 3 years later. There were significant differences in growth and survival between provenances. The best families reached heights of >3.5 m and came from mother trees in a natural forest. The number of leaflets per leaf on mother trees was positively correlated with height (Ht) and diameter at breast height (Dbh) of the trial trees. The individual heritabilities (<i>ĥ</i><sup>2</sup>) for Ht and Dbh were 0.39 and 0.49 for Tan Son, and 0.33 and 0.48 for Doan Hung, respectively. The coefficient of additive variation (<i>CV<sub>A</sub></i>) of Ht and Dbh were 36% and 58% for Tan Son, and 23% and 30% for Doan Hung, respectively. Interactions between the growth traits in the two trials were strongly correlated (R<sup>2</sup> = 0.88 for Ht, 0.90 for Dbh). These results identify <i>D. tonkinensis</i> gene sources with advantages for early growth performance in plantations. These superior genetics can be used for seed orchards, clonal propagation and for implementing a breeding program. |
| first_indexed | 2024-03-09T16:39:18Z |
| format | Article |
| id | doaj.art-97dcf30fb8c14d8ba1ab4a4a450757a1 |
| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-03-09T16:39:18Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Forests |
| spelling | doaj.art-97dcf30fb8c14d8ba1ab4a4a450757a12023-11-24T14:53:15ZengMDPI AGForests1999-49072022-11-011312197710.3390/f13121977Early Field Performance and Genetic Variation of <i>Dalbergia tonkinensis</i>, a Valuable Rosewood in VietnamBernard Dell0Pham Quang Thu1Nguyen Hoang Nghia2Phi Hong Hai3Nong Phuong Nhung4Nguyen Minh Chi5Forest Protection Research Centre, Vietnamese Academy of Forest Sciences, Duc Thang, Bac Tu Liem, Hanoi 11910, VietnamForest Protection Research Centre, Vietnamese Academy of Forest Sciences, Duc Thang, Bac Tu Liem, Hanoi 11910, VietnamResearch Institute for Sustainable Forest Management and Forest Certification, Hanoi 11910, VietnamVietnamese Academy of Forest Sciences, Hanoi 11910, VietnamPost Graduate Training and International Cooperation Department, Vietnamese Academy of Forest Sciences, Hanoi 11910, VietnamForest Protection Research Centre, Vietnamese Academy of Forest Sciences, Duc Thang, Bac Tu Liem, Hanoi 11910, Vietnam<i>Dalbergia tonkinensis</i> is being promoted in Vietnam for the future supply of prized wood for furniture and chemical extraction. Expansion of the plantation area requires a reliable source of quality seed. This study evaluates the field performance of progeny from mature mother trees in natural forests and urban environments. Trials were established in Tan Son and Doan Hung districts of Phu Tho province and assessed 3 years later. There were significant differences in growth and survival between provenances. The best families reached heights of >3.5 m and came from mother trees in a natural forest. The number of leaflets per leaf on mother trees was positively correlated with height (Ht) and diameter at breast height (Dbh) of the trial trees. The individual heritabilities (<i>ĥ</i><sup>2</sup>) for Ht and Dbh were 0.39 and 0.49 for Tan Son, and 0.33 and 0.48 for Doan Hung, respectively. The coefficient of additive variation (<i>CV<sub>A</sub></i>) of Ht and Dbh were 36% and 58% for Tan Son, and 23% and 30% for Doan Hung, respectively. Interactions between the growth traits in the two trials were strongly correlated (R<sup>2</sup> = 0.88 for Ht, 0.90 for Dbh). These results identify <i>D. tonkinensis</i> gene sources with advantages for early growth performance in plantations. These superior genetics can be used for seed orchards, clonal propagation and for implementing a breeding program.https://www.mdpi.com/1999-4907/13/12/1977domesticationfragrant woodheight and diameter growthheritabilityreforestationseed source |
| spellingShingle | Bernard Dell Pham Quang Thu Nguyen Hoang Nghia Phi Hong Hai Nong Phuong Nhung Nguyen Minh Chi Early Field Performance and Genetic Variation of <i>Dalbergia tonkinensis</i>, a Valuable Rosewood in Vietnam Forests domestication fragrant wood height and diameter growth heritability reforestation seed source |
| title | Early Field Performance and Genetic Variation of <i>Dalbergia tonkinensis</i>, a Valuable Rosewood in Vietnam |
| title_full | Early Field Performance and Genetic Variation of <i>Dalbergia tonkinensis</i>, a Valuable Rosewood in Vietnam |
| title_fullStr | Early Field Performance and Genetic Variation of <i>Dalbergia tonkinensis</i>, a Valuable Rosewood in Vietnam |
| title_full_unstemmed | Early Field Performance and Genetic Variation of <i>Dalbergia tonkinensis</i>, a Valuable Rosewood in Vietnam |
| title_short | Early Field Performance and Genetic Variation of <i>Dalbergia tonkinensis</i>, a Valuable Rosewood in Vietnam |
| title_sort | early field performance and genetic variation of i dalbergia tonkinensis i a valuable rosewood in vietnam |
| topic | domestication fragrant wood height and diameter growth heritability reforestation seed source |
| url | https://www.mdpi.com/1999-4907/13/12/1977 |
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