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Leaf gas exchange properties of three varieties of Labisia pumila Benth. under greenhouse conditions

Leaf gas exchange properties of three varieties of Labisia pumila Benth. (varieties alata, lanceolata and pumila) were measured using LICOR 6400 portable photosynthesis meter under greenhouse conditions in a single factor Complete Randomized Design replicated 10 times. Results indicated that there w...

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Main Authors: Jaafar, Hawa Z. E., Ibrahim, Mohd Hafiz, Philip, Elizabeth
Format: Article
Language:English
Published: Malaysian Society of Plant Physiology 2009
Online Access:http://psasir.upm.edu.my/id/eprint/15432/1/Leaf%20gas%20exchange%20properties%20of%20three%20varieties%20of%20Labisia%20pumila%20Benth.pdf
http://psasir.upm.edu.my/id/eprint/15432/
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spelling my.upm.eprints.154322015-10-09T01:55:08Z http://psasir.upm.edu.my/id/eprint/15432/ Leaf gas exchange properties of three varieties of Labisia pumila Benth. under greenhouse conditions Jaafar, Hawa Z. E. Ibrahim, Mohd Hafiz Philip, Elizabeth Leaf gas exchange properties of three varieties of Labisia pumila Benth. (varieties alata, lanceolata and pumila) were measured using LICOR 6400 portable photosynthesis meter under greenhouse conditions in a single factor Complete Randomized Design replicated 10 times. Results indicated that there were no varietal preferences on stomata conductance, water use efficiency and transpiration rate. However, net photosynthesis was 33% and 26% significantly higher (p ≤0.01) in var lanceolata (3.47 µmol/m2/s) compared to varieties alata (2.33 µmol/m2/s) and pumila (2.58 µmol/m2/s), respectively. Although other leaf gas exchange parameters did not differ significantly among the varieties, var lanceolata consistently recorded higher values for stomata conductance and water use efficiency against other varieties. The results may imply that var lanceolata is a more adaptable, hence, more suitable for the propagation under greenhouse conditions than the other two varieties. However, further research needs to be conducted to confirm these findings as the effects observed might be attributed to the differences in stomata sensitivity of the plants studied. Variety alata, conversely, had consistently exhibited the lowest values for all its leaf gas exchange characteristics suggesting that the variety is more challenging to be raised under the greenhouse conditions for domestication purposes. Selection of variety for propagation should also, however, be based upon varietal potential to produce and accumulate secondary metabolites under greenhouse for the purpose of enhancing local herbal industry. Malaysian Society of Plant Physiology 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/15432/1/Leaf%20gas%20exchange%20properties%20of%20three%20varieties%20of%20Labisia%20pumila%20Benth.pdf Jaafar, Hawa Z. E. and Ibrahim, Mohd Hafiz and Philip, Elizabeth (2009) Leaf gas exchange properties of three varieties of Labisia pumila Benth. under greenhouse conditions. Journal of Tropical Plant Physiology, 3. pp. 16-24. ISSN 1985-0484
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Leaf gas exchange properties of three varieties of Labisia pumila Benth. (varieties alata, lanceolata and pumila) were measured using LICOR 6400 portable photosynthesis meter under greenhouse conditions in a single factor Complete Randomized Design replicated 10 times. Results indicated that there were no varietal preferences on stomata conductance, water use efficiency and transpiration rate. However, net photosynthesis was 33% and 26% significantly higher (p ≤0.01) in var lanceolata (3.47 µmol/m2/s) compared to varieties alata (2.33 µmol/m2/s) and pumila (2.58 µmol/m2/s), respectively. Although other leaf gas exchange parameters did not differ significantly among the varieties, var lanceolata consistently recorded higher values for stomata conductance and water use efficiency against other varieties. The results may imply that var lanceolata is a more adaptable, hence, more suitable for the propagation under greenhouse conditions than the other two varieties. However, further research needs to be conducted to confirm these findings as the effects observed might be attributed to the differences in stomata sensitivity of the plants studied. Variety alata, conversely, had consistently exhibited the lowest values for all its leaf gas exchange characteristics suggesting that the variety is more challenging to be raised under the greenhouse conditions for domestication purposes. Selection of variety for propagation should also, however, be based upon varietal potential to produce and accumulate secondary metabolites under greenhouse for the purpose of enhancing local herbal industry.
format Article
author Jaafar, Hawa Z. E.
Ibrahim, Mohd Hafiz
Philip, Elizabeth
spellingShingle Jaafar, Hawa Z. E.
Ibrahim, Mohd Hafiz
Philip, Elizabeth
Leaf gas exchange properties of three varieties of Labisia pumila Benth. under greenhouse conditions
author_facet Jaafar, Hawa Z. E.
Ibrahim, Mohd Hafiz
Philip, Elizabeth
author_sort Jaafar, Hawa Z. E.
title Leaf gas exchange properties of three varieties of Labisia pumila Benth. under greenhouse conditions
title_short Leaf gas exchange properties of three varieties of Labisia pumila Benth. under greenhouse conditions
title_full Leaf gas exchange properties of three varieties of Labisia pumila Benth. under greenhouse conditions
title_fullStr Leaf gas exchange properties of three varieties of Labisia pumila Benth. under greenhouse conditions
title_full_unstemmed Leaf gas exchange properties of three varieties of Labisia pumila Benth. under greenhouse conditions
title_sort leaf gas exchange properties of three varieties of labisia pumila benth. under greenhouse conditions
publisher Malaysian Society of Plant Physiology
publishDate 2009
url http://psasir.upm.edu.my/id/eprint/15432/1/Leaf%20gas%20exchange%20properties%20of%20three%20varieties%20of%20Labisia%20pumila%20Benth.pdf
http://psasir.upm.edu.my/id/eprint/15432/
_version_ 1643825932826312704
score 13.211869

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