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Heliothermic index

In order to obtain a better correlation between bioclimatic data and final grape sugar concentrations, Huglin (1978) proposed a heliothermic index (HI). This index takes into account the maximum daily temperatures over a 6-month period from April 1st to September 30th. In this relationship ... [Pg.264]

Viticultural zones Sum of degree-days (Winkler, 1962) Heliothermic product (Branas, 1946) Heliothermic index (Huglin, 1978)... [Pg.265]

See also in sourсe #XX -- [ Pg.264 ]



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