[article] | Title : |
Morphological plasticity of corms in enhancing invasion of Chromolaena odorata |
| Material Type: |
printed text |
| Authors: |
JOSHI, C., Author ; J van Andel, Author ; SKIDMORE, A.K., Author |
| Publication Date: |
2011 |
| Article on page: |
3-12 p. |
| Languages : |
English (eng) |
| Abstract: |
In this paper, the researchers investigate the vegetative growth of Chromolaena odorata and the
influence of light intensity on the understorey environment of Shorea robusta forest at Chitwan in
south-central Terai, Nepal. C. odorata is a clonally growing shrub and typically consists of
several clones with an underground “cormous organ” (a modified stem to store food reserve; here
after “corm”) belonging to an identical genet. In C. odorata, the biomass of such corms varied
across the light gradient. The number of shoot demonstrated a strong logarithmic relation with
biomass of corm. Under open forest canopy environment, corm biomass was strongly correlated with
the number of shoots and the corm’s age. However, under dense forest canopy, there was no
significant relationship between corm biomass and its age. This result shows that corms of C.
odorata were capable of maintaining their viability for a long period even under closed canopy
environment. Any disturbances in forest canopy density would ultimately trigger its clonal growth
capability. This plasticity of corms appeared to be a key strategy for invasion success of this
species. Comparison of these results further indicates the importance of canopy density in
determining invasion success of C. odorata.
|
| Link for e-copy: |
http://lib.frtc.gov.np/elibrary/?r=1 |
in BANKO JANAKARI - वनको जानकारी : A Journal of Forestry Information for Nepal > 21 : 2 (July - December 2011) . - 3-12 p.
[article] Morphological plasticity of corms in enhancing invasion of Chromolaena odorata [printed text] / JOSHI, C., Author ; J van Andel, Author ; SKIDMORE, A.K., Author . - 2011 . - 3-12 p. Languages : English ( eng) in BANKO JANAKARI - वनको जानकारी : A Journal of Forestry Information for Nepal > 21 : 2 (July - December 2011) . - 3-12 p. | Abstract: |
In this paper, the researchers investigate the vegetative growth of Chromolaena odorata and the
influence of light intensity on the understorey environment of Shorea robusta forest at Chitwan in
south-central Terai, Nepal. C. odorata is a clonally growing shrub and typically consists of
several clones with an underground “cormous organ” (a modified stem to store food reserve; here
after “corm”) belonging to an identical genet. In C. odorata, the biomass of such corms varied
across the light gradient. The number of shoot demonstrated a strong logarithmic relation with
biomass of corm. Under open forest canopy environment, corm biomass was strongly correlated with
the number of shoots and the corm’s age. However, under dense forest canopy, there was no
significant relationship between corm biomass and its age. This result shows that corms of C.
odorata were capable of maintaining their viability for a long period even under closed canopy
environment. Any disturbances in forest canopy density would ultimately trigger its clonal growth
capability. This plasticity of corms appeared to be a key strategy for invasion success of this
species. Comparison of these results further indicates the importance of canopy density in
determining invasion success of C. odorata.
|
| Link for e-copy: |
http://lib.frtc.gov.np/elibrary/?r=1 |
|
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