A note on the growth of Labisa pumila under different light conditions

Philip E., . and Jaafar H. Z. E., . and Rizal M. K. M., . A note on the growth of Labisa pumila under different light conditions. pp. 1-6. ISSN 1985-0484

A study on light response curves of L pumila growing under three different light intensities from two different locations in Selangor viz. Sungai Congkak Forest Reserve (planted on forest floor receiving about 100 mol m-s- and Sungai Tekala Forest Reserve (growing naturally on forest floor and receiving about 60 mol m-s- planted in the open area receiving about 1000 mol m-s-) was carried out. The main objective of the study was to document the light saturation level for optimum physiological growth of L. pumila for domestication. Maximum photosynthesis of L pumila was recorded at 200 mol m when the relative humidity recorded at 90. The Fv/FM values for plants under planted forest floor growing naturally on forest tloor and planted in the open were 0.83 0.80 and 0.65 respectively indicating that L. pumila is sensitive to high light at 1000 mol m-s- . Plants under full light also exhibited smaller (185 vs 502 cm) leaves with lighter green shade (relative chlorophyll content 29.1 vs 70.5) compared to those under closed canopy of forest reserve (at respective 502 cm and 70.5).

Full text available from: Official URL: http://www.jtpp.org.my/volume/3/vol3_article1.pdf

Abstract

A study on light response curves of L pumila growing under three different light intensities from two different locations in Selangor viz. Sungai Congkak Forest Reserve (planted on forest floor receiving about 100 mol m-s- and Sungai Tekala Forest Reserve (growing naturally on forest floor and receiving about 60 mol m-s- planted in the open area receiving about 1000 mol m-s-) was carried out. The main objective of the study was to document the light saturation level for optimum physiological growth of L. pumila for domestication. Maximum photosynthesis of L pumila was recorded at 200 mol m when the relative humidity recorded at 90. The Fv/FM values for plants under planted forest floor growing naturally on forest tloor and planted in the open were 0.83 0.80 and 0.65 respectively indicating that L. pumila is sensitive to high light at 1000 mol m-s- . Plants under full light also exhibited smaller (185 vs 502 cm) leaves with lighter green shade (relative chlorophyll content 29.1 vs 70.5) compared to those under closed canopy of forest reserve (at respective 502 cm and 70.5).

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Item Type:	Article
AGROVOC Term:	Primulaceae
AGROVOC Term:	Medicinal plants
AGROVOC Term:	Plant morphology
AGROVOC Term:	Plant physiology
AGROVOC Term:	Light regimes
AGROVOC Term:	Photosynthesis
AGROVOC Term:	Chlorophylls
AGROVOC Term:	Growth rate
AGROVOC Term:	Photoinhibition
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/9150

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