Physiological responses of grapevines to environmental stresses
The field response of several grapevine (Vitis vinifera L) cultivars, grown at the Orchard Mesa Research Center, to methanol application on foliage and trunks was investigated. Sublethal methanol doses were determined as 90% for leaves and 100% for trunks. The application of these concentrations on grapevines during mid-summer did not affect sugar accumulation, photosynthesis, transpiration, stomatal resistance, yield components, nor bud cold hardiness as compared to untreated vines. Cold hardiness and endogenous levels of soluble sugars were monitored during the dormant season for Chardonnay ...
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