Sharp, R.E. and Osonubi, O. and Wood, W.A. and Davies, W.J. (1979) A simple instrument for measuring leaf extension in grasses, and its application in the study of the effects of water stress on maize and sorghum. Annals of Botany, 44 (1). pp. 35-45.
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Abstract
The design of a simple instrument to monitor leaf expansion in grasses is described. The instrument was used to compare the effects of water stress on leaf extension of 1 cv. each of maize and sorghum. The effect of withholding water for 3 days was an appreciable reduction in the rate of leaf expansion in both spp., particularly during the light period. In well-watered plants of both spp., leaf extension continued at a steady rate even when leaf turgor fell to around 0.1 MPa. In water-stressed maize plants, leaf turgor during the light period fell to zero and leaf growth ceased. When turgor was restored, following stomatal closure, leaf extension resumed at a slow rate. In unwatered sorghum plants, leaf turgor remained at a value >0.1 MPa but the rate of leaf extension was significantly reduced. The reduction in leaf turgor in the unwatered plants resulted partly from an increase in solute potential
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Biological Sciences, University of Lancaster Bailrigg, Lancaster LA1 4YQ |
| Subjects: | Plant Production |
| Divisions: | Maize Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 15 May 2012 08:44 |
| Last Modified: | 15 May 2012 08:44 |
| Official URL: | http://aob.oxfordjournals.org/content/44/1/35.abst... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/5344 |
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