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The Syngenta Field Report features information and experts from Syngenta sharing observations about issues growers are dealing with in the fields.
Enhancing Plant Physiology
This photo illustrates the beneficial effects of fungicide treatment (right) on corncobs and stalks relative to untreated corn (left).
With all due respect, is the claim of an increase in transpiration efficiency a theory based on observation, or proven by testing of leaf transpiration in a statistically valid study?
Thank you for your inquiry. The claim that strobilurin fungicides increase water use efficiency and slows transpiration to help the plant retain water is based on several scientific studies with valid statistics. In the 2007 study by M.A. Nason, J. Farrar, and D. Bartlett, strobilurin-treated plants had a lower rate of transpiration, a lower intercellular carbon dioxide concentration, and a lower net rate of photosynthesis when compared with leaves of a control plant or a triazole. The study measured these factors against photosynthetic photon flux density to determine the effects of strobilurin fungicides. This study, among others, highlights increased transpiration efficiency in plants by using strobilurin fungicides. I hope this follow-up has answered you questions. Thank you for taking the time to respond.
Corprate preaching, I could walk into any cornfield and find the same exact dfference in plants.