Effect of interstock on dry matter production and growth analysis of Hevea brasiliensis (Muell. Arg.)


Citation

Bastiah Ahmad, . and Wan C. K., . and Mohd. Akib Mohd Yusoff, . Effect of interstock on dry matter production and growth analysis of Hevea brasiliensis (Muell. Arg.). pp. 265-296. ISSN 0127-7065

Abstract

The influence of five interstock clones of contrasting vigour on dry matter production and distribution of three Hevea brasiliensis clones grown in the ground nursery over a two-year period was studied. Results obtained after one year of planting indicate that the influence of interstock and scion upon various aspects of growth were generally found to be additive with some showing significant interaction between scion and interstock. The influence of interstock on scion growth was related to the inherent vigour characteristic of the interstock clones. Trees on vigorous interstock (TR 3 702 and RRIM 613) produced more dry matter in the above-ground plant parts than those on less vigorous interstocks (H. spruceana and RRIM 600). Leaf area whole tree dry weight mean relative growth rate and mean net assimilation rate followed a similar pattern. In these composite trees it appears that there is competition for photosynthate between scion stem and roots with vigorous interstocks being able to divert more photosynthate to scion stem than to roots. The significance of these findings are discussed.


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Abstract

The influence of five interstock clones of contrasting vigour on dry matter production and distribution of three Hevea brasiliensis clones grown in the ground nursery over a two-year period was studied. Results obtained after one year of planting indicate that the influence of interstock and scion upon various aspects of growth were generally found to be additive with some showing significant interaction between scion and interstock. The influence of interstock on scion growth was related to the inherent vigour characteristic of the interstock clones. Trees on vigorous interstock (TR 3 702 and RRIM 613) produced more dry matter in the above-ground plant parts than those on less vigorous interstocks (H. spruceana and RRIM 600). Leaf area whole tree dry weight mean relative growth rate and mean net assimilation rate followed a similar pattern. In these composite trees it appears that there is competition for photosynthate between scion stem and roots with vigorous interstocks being able to divert more photosynthate to scion stem than to roots. The significance of these findings are discussed.

Additional Metadata

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Item Type: Article
AGROVOC Term: Hevea brasiliensis
AGROVOC Term: Growth rate
AGROVOC Term: Clones
AGROVOC Term: Clonal variation
AGROVOC Term: Nursery plants
AGROVOC Term: Scions
AGROVOC Term: Assimilation
AGROVOC Term: Vegetative propagation
AGROVOC Term: Grafting
AGROVOC Term: High yielding breeds
Geographical Term: Malaysia
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 28 Apr 2025 03:57
URI: http://webagris.upm.edu.my/id/eprint/23376

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