Farnesol-like antitranspirant activity and stomatal behaviour in maize and Sorghum lines of differing drought tolerance

Wilson, J.A. and Davies, W.J. (1979) Farnesol-like antitranspirant activity and stomatal behaviour in maize and Sorghum lines of differing drought tolerance. Plant, Cell and Environment, 2 (1). pp. 49-57.

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Abstract

Potted seedlings of four lines of maize and Sorghum of differing drought tolerance were subjected to a single soil drying cycle and were only rewatered when the plants showed the first signs of wilting. Other plants remained well-watered throughout the experimental period. As plant water potentials decreased in the unwatered plants of three of the lines investigated (Sorghum Piper and M35-1, V-4146 and maize Farz 27), endogenous levels of farnesol-like antitranspirants increased. Closure of stomata correlated well with the increase in endogenous antitranspirant. In the fourth line (Sorghum M35-1, V-4184), stomata did not close as the level of plant water stress increased, although leaf diffusion resistance of even the well-watered plants of this line was quite high. In this line, there was no consistent relationship between plant water stress and antitranspirant level or between stomatal behaviour and antitranspirant level. The involvement of farnesol-like antitranspirants in the control of stomatal behaviour in water-stressed plants is discussed

Item Type: Article
Author Affiliation: Department of Biological Sciences, University of Lancaster, Bailrigg, Lancaster, LA1 4YQ
Subjects: Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Maize
Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 16 May 2012 06:13
Last Modified: 16 May 2012 06:14
Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1365-...
URI: http://eprints.icrisat.ac.in/id/eprint/5368

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