Provenance evaluation of acacia mangium wild for growth and wood traits
| dc.contributor.advisor | Santhoshkumar, A V | |
| dc.contributor.author | Ringyao, Jajo | |
| dc.contributor.author | KAU | |
| dc.date.accessioned | 2020-12-17T05:55:05Z | |
| dc.date.available | 2020-12-17T05:55:05Z | |
| dc.date.issued | 2015 | |
| dc.description | MSc | en_US |
| dc.description.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. | en_US |
| dc.identifier.citation | 173642 | en_US |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810156802 | |
| dc.keywords | Tree Physiology and Breeding | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 157p. | en_US |
| dc.publisher | Department of Tree Physiology and Breeding, College of Forestry,Vellanikkara | en_US |
| dc.sub | Forestry | en_US |
| dc.theme | Acacia mangium wild for growth and wood traits | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Provenance evaluation of acacia mangium wild for growth and wood traits | en_US |
| dc.type | Thesis | en_US |