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Am. J. Enol. Vitic. 45:3:285-290 (1994)
Copyright © 1994 by the American Society for Enology and Viticulture.
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The Effect of Transient Waterlogging on the Growth, Leaf Gas Exchange, and Mineral Composition of Potted Sultana Grapevines

R. M. Stevens 1 and L. D. Prior 1

1 South Australian Research and Development Institute, Loxton Research Centre, P. O. Box 411, Loxton 5333, Australia.

Potted Sultana vines were waterlogged for the first 0, 1, 3, 5, or 7 days of a two-week cycle designated W0, WI, W3, W5, and W7, respectively. The vines were harvested at the end of the fourth cycle. Shoot elongation rates over the first two cycles for W0 to W7 were 56, 51, 34, 38, and 35 mm/day, respectively. Vine leaf and stem dry weights at harvest were 37, 32, 22, 21, and 19 g/vine for W0 to W7, respectively. Photosynthesis and stomatal conductance were reduced both during and following waterlogging, but leaf water potential was unaffected. Waterlogging reduced leaf blade N. P, and Ca, increased Na and Mg, and did not affect K, Cl, Mn, Zn, and N-N03.

Key words: waterlogging, leaf gas exchange, mineral composition, Sultana grapevines

Submitted on November 9, 1992






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Copyright © 1994 by the American Society for Enology and Viticulture.