Provenance evaluation of acacia mangium wild for growth and wood traits
By: Ringyao Jajo.
Contributor(s): A V Santhoshkumar (Guide).
Material type:
BookPublisher: Vellanikkara Department of tree physiology and breeding, College of forestry 2015Description: 157 Pages.Subject(s): Tree physiology and breeding | WoodDDC classification: 634.9 Online resources: Click here to access online Dissertation note: MSc Abstract: A provenance evaluation of A. mangium was conducted in 14 year old
plantation at Livestock Research Station, Thiruvazhamkunnu, to understand the
variation in growth and wood traits among the provenances. Ten provenances and
one local seed source was used for the trial.
The provenances had high survival percentage (77.44%), but did not differ
significantly between provenances. Significant differences between provenances
were found in tree height, while they were on par for DBH, volume, tree form and
branching habit. The provenances of Kuranda, Arufi Village, Upper Aramia,
Oriomo, Balimo and Binaturi were taller than the rest. Heritability of growth
attributes was highest for height (63%). Morphometric traits of seeds were found to
be significantly different between the provenances. Arufi Village provenance was
found to be better than the other provenances for the traits. Seed weight and seed
width were found to be strongly correlated with seedling height. Variation in
germination energy, germination value and germination period were also significantly
different between provenances. Lake Murray provenances showed the best
performance in most of the parameters studied for germination. No significant
differences between provenances were observed for germination capacity.
Germination parameters are under moderate to high genetic control. Significant
differences were noticed among the progenies of the provenances in height, while
they did not differ in terms of collar girth and RGR.
The provenances differed significantly in physical properties of wood, but not
in mechanical properties. The provenances differed significantly for heartwood only
at the base, while basic density was significantly different at all the height levels.
Density was significantly and positively correlated with fiber length and slenderness,
but negatively with fiber diameter and fiber wall thickness. The variations in fiber
morphology between the provenances were also found to be significant. However,
runkel ratio, flexibility and rigidity coefficient did not differ significantly between the
provenances. Wood properties of the provenances were under strong genetic control.
Based on the study, Tully-Mission Beach, Arufi Village, Kuranda, Upper
Aramia, Lake Murray and Binaturi provenances can be recommended for growing
under Kerala condition.
| Item type | Current location | Collection | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | Reference Book | 634.9 RIN/PR (Browse shelf) | Not For Loan | 173642 |
Browsing KAU Central Library, Thrissur Shelves , Shelving location: Theses , Collection code: Reference Book Close shelf browser
MSc
A provenance evaluation of A. mangium was conducted in 14 year old
plantation at Livestock Research Station, Thiruvazhamkunnu, to understand the
variation in growth and wood traits among the provenances. Ten provenances and
one local seed source was used for the trial.
The provenances had high survival percentage (77.44%), but did not differ
significantly between provenances. Significant differences between provenances
were found in tree height, while they were on par for DBH, volume, tree form and
branching habit. The provenances of Kuranda, Arufi Village, Upper Aramia,
Oriomo, Balimo and Binaturi were taller than the rest. Heritability of growth
attributes was highest for height (63%). Morphometric traits of seeds were found to
be significantly different between the provenances. Arufi Village provenance was
found to be better than the other provenances for the traits. Seed weight and seed
width were found to be strongly correlated with seedling height. Variation in
germination energy, germination value and germination period were also significantly
different between provenances. Lake Murray provenances showed the best
performance in most of the parameters studied for germination. No significant
differences between provenances were observed for germination capacity.
Germination parameters are under moderate to high genetic control. Significant
differences were noticed among the progenies of the provenances in height, while
they did not differ in terms of collar girth and RGR.
The provenances differed significantly in physical properties of wood, but not
in mechanical properties. The provenances differed significantly for heartwood only
at the base, while basic density was significantly different at all the height levels.
Density was significantly and positively correlated with fiber length and slenderness,
but negatively with fiber diameter and fiber wall thickness. The variations in fiber
morphology between the provenances were also found to be significant. However,
runkel ratio, flexibility and rigidity coefficient did not differ significantly between the
provenances. Wood properties of the provenances were under strong genetic control.
Based on the study, Tully-Mission Beach, Arufi Village, Kuranda, Upper
Aramia, Lake Murray and Binaturi provenances can be recommended for growing
under Kerala condition.
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