Beardsell, M.F. and Cohen, D. (1975) Relationships between leaf water status, abscisic acid levels, and stomatal resistance in maize and sorghum. Plant Physiology, 56 (2). pp. 207-212.
![[img]](http://eprints.icrisat.ac.in/style/images/fileicons/application_pdf.png)
|
PDF
| Preview |
Abstract
A new method for abscisic acid extraction and purification was developed to handle large numbers of small (about 125 milligrams fresh weight) samples of leaf discs. This method enabled short term changes in abscisic acid to be followed in single leaves. Water potentials, stomatal diffusion resistance, and abscisic acid levels were measured in the leaves of maize (Zea mays L. var. Wisconsin 575) and sorghum (Sorghum bicolor, hybrid NK 145) plants subjected to a drought-recovery cycle under controlled environmental conditions. The levels of abscisic acid began to rise, and the stomata closed, over a narrow range of water potential (−8 to −10 bars) in both species. Abscisic acid levels continued to rise after the stomata closed. The maximum amount of abscisic acid extracted from maize leaves was about twice that from sorghum, but this represented a similar proportional increase over the control level...
| Item Type: | Article |
|---|---|
| Author Affiliation: | Plant Physiology Division, Department of Scientific and Industrial Research, Palmerston North, New Zealand |
| Subjects: | Plant Production Plant Physiology and Biochemistry > Plant Physiology Plant Physiology and Biochemistry > Biochemistry |
| Divisions: | Maize Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 31 Aug 2012 03:55 |
| Last Modified: | 31 Aug 2012 03:57 |
| Official URL: | http://dx.doi.org/10.1104/pp.56.2.207 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/7621 |
Actions (login required)
 |
View Item |
