Estimation of biomass in Hevea clones by regression method: Relation between girth and biomass
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TextPublication details: Indian Journal of Natural Rubber Research 1995Description: 113-116Subject(s): Summary: The relationship between girth and the above ground biomass was studied in two clones, with varied growth habits, of Hevea brasiliensis. The clones chosen were RRIM 600 and RRII 118. A set of relationships were developed using the biomass as a power function of girth for different age groups from first year after planting upto fifth year. The regression equations were found non-significant for individual clones as well as for years from second year onwards. A general equation was thus developed and is given as biomass in g(W)=2.278479 X2.2683(where, X is the girth at 15 cm height from bud union). The relation is found to be good fit from 16 cm or more girth, and is location specific.
| Item type | Current library | Vol info | Status | |
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Journals
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RRII Library Rubber general | Volume 8, Issue 2 | Journals |
The relationship between girth and the above ground biomass was studied in two clones, with varied growth habits, of Hevea brasiliensis. The clones chosen were RRIM 600 and RRII 118. A set of relationships were developed using the biomass as a power function of girth for different age groups from first year after planting upto fifth year. The regression equations were found non-significant for individual clones as well as for years from second year onwards. A general equation was thus developed and is given as biomass in g(W)=2.278479 X2.2683(where, X is the girth at 15 cm height from bud union). The relation is found to be good fit from 16 cm or more girth, and is location specific.
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