A Study of Stomatal Behaviour of Avocado ( Persea ameicana Mill. ) Leaves

Authors

  • W. Pongsomboon Horticulture Research Institute, Department of Agriculture, Bangkok 10900,Thailand
  • A.W. Whiley Maroochy Horticultural Research Station, P.O. Box 5083 Sunshine Coast Mail Center, Nambour, Queensland 4630, Australia
  • S. Subhadrabandhu Department of Horticulture, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand
  • R.A. Stephenson Maroochy Horticultural Research Station, P.O. Box 5083 Sunshine Coast Mail Center, Nambour, Queensland 4630, Australia

Keywords:

avocado, Persea americana, stomatal behaviour, water conductance

Abstract

Immature expanding avocado leaves are relatively sensitive to water loss under highly evaporative environments due to the lack of stomatal control. Stomatal conductance (gs) was determined on young expanding leaves of one-year-old avocado trees cv Hass growing in the glasshouse. The gs measurement was made in controlled air temperature room of 25oC both in the dark and light during leaf growing. Fully expanded leaf size was reached by about 30 days after emergence. Similar behaviours of stomata both in the dark and light were observed, suggesting to be due to an overriding effects of low vapour pressure deficit (VPD) on gs.

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Published

1997-09-30

How to Cite

Pongsomboon, W., A.W. Whiley, S. Subhadrabandhu, and R.A. Stephenson. 1997. “A Study of Stomatal Behaviour of Avocado ( Persea Ameicana Mill. ) Leaves”. Agriculture and Natural Resources 31 (3). Bangkok, Thailand:357-62. https://li01.tci-thaijo.org/index.php/anres/article/view/240947.

Issue

Vol. 31 No. 3 (1997): July-September

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.