Muchow, R.C. and Fisher, M.J. and Ludlow, M.M. and Myers, R.J.K. (1980) Stomatal behaviour of kenaf and sorghum in a semiarid tropical environment. II. During the day. Australian Journal of Plant Physiology, 7 (4). pp. 621-628.
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Abstract
The influence of leaf water potential (LWP), saturation deficit and temp. on stomatal conductance of kenaf and sorghum was determined at non-limiting quantum fluxes both at high and low soil water status in the field, and under controlled environment conditions. Sorghum stomata closed in response to LWP in a manner consistent with the classical feedback control, while kenaf stomata responded directly to saturation deficit independently of LWP. The rate of decrease of stomatal conductance of kenaf with increasing saturation deficit was greater at higher temp. Also, the stomata of stressed kenaf were less sensitive to saturation deficit than those of the well-watered crop due to the limitation in degree of stomatal opening imposed by water stress. The degree of stomatal adjustment in kenaf was also assessed. In the stressed kenaf the LWP at half the maximum stomatal conductance was c. 0.17 MPa lower, and stomatal conductance was more sensitive to decreases in LWP than in the well watered control. However, there was little difference in the LWP at 95% stomatal closure
| Item Type: | Article |
|---|---|
| Author Affiliation: | Division of Tropical Crops and Pastures, CSIRO, Kimberley Research Station, Kununurra, W.A., Australia 6743 |
| Subjects: | Plant Production Plant Physiology and Biochemistry > Plant Physiology Plant Physiology and Biochemistry > Biochemistry |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 09 Oct 2012 08:44 |
| Last Modified: | 09 Oct 2012 08:44 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/8334 |
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