Henson, I.E. (1982) Osmotic adjustment to water stress in pearl millet(Pennisetum americanum (L.) Leeke) in controlled environment. Journal of Experimental Botany, 33 (132). pp. 78-87.
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Abstract
A pressure-vol. and an expressed sap (cryoscopic) technique were compared for assessing osmotic adjustment to water stress by pearl millet. There was good agreement between estimates of solute potential ( psi s) and turgor ( psi p) by the 2 methods at leaf water potentials ( psi ) >0 turgor. Reductions in pre-dawn psi to -1.8 MPa over 5-6 days resulted in net solute accumulation, decreasing psi s by 0.3 MPa at full hydration. The degree of osmotic adjustment increased linearly with the decrease in pre-dawn psi . Adjustment was less in cv. Serere 39 than BJ 104 and for the latter was less during a 2nd drought than in fully extended leaves. Most of the adjustment was lost within 24 h of rewatering, particularly in older leaves
| Item Type: | Article |
|---|---|
| Author Affiliation: | Pl. Breeding Inst., Trumpington, Cambridge CB2 2LQ, UK |
| Subjects: | Plant Protection Crop Improvement |
| Divisions: | Millet |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 10 Jul 2012 07:40 |
| Last Modified: | 10 Jul 2012 07:40 |
| Official URL: | http://dx.doi.org/10.1093/jxb/33.1.78 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/6639 |
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