e-ISSN 2231-8542
ISSN 1511-3701

Home / Regular Issue / JTAS Vol. 16 (3) Dec. 1993 / JTAS-0029-1993


Water Relations, Stomatal Responses and Physiological Changes of Lansium domesticum

Mohd Razi Ismail, Mohd Idris Z.A. and Ruziah Salleh

Pertanika Journal of Tropical Agricultural Science, Volume 16, Issue 3, December 1993

Keywords: Lansium domesticum, growth, relative water content, stomatal resistance, stomatal density, photosynthesis rate

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The effects of water stress on growth, water relations and physiological changes of young Lansium domesticum plants were investigated. There was a significant reduction in leaf stem and root dry weight zoith increasing water stress. Relative water content was reduced but stomatal density and chlorophyll content were increased with water stress. An increase in stomatal density of plants subjected to water stress did not improve stomatal functioning as stomatal resistance was greater in these plants. This contributed to the reduction in leaf photosynthesis rate. Stomatal resistance of severely stressed plants did not reach a similar level as plants watered continuously after rewatering Stomatal resistance of langsat was lower than dokong plants indicating that langsat exhibited a better stomatal control than dokong plants.

ISSN 1511-3701

e-ISSN 2231-8542

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