Abstract

A field experiment was conducted in 2009 and 2010 growing seasons, to study the effect of foliar application of iron- chelated "Fe-EDTA" (0, 100 and 200 mg.l-1) on the seasonal dynamic of some physical and chemical properties of berries of Halwani Lebanon grape cultivar, grown on a calcareous soil in Mosul region,  Iraq. The results revealed that the foliar application of 100 mgFe.l-1 caused a significant increase of berry weight, TSS, glucose and malic acid in berries while spraying with 200 mgFe.l-1 caused a significant increase in the total acidity (TA), tartaric acid and fructose in juice berries compared to the control for both seasons. Additionally, berry weight, TSS, glucose and fructose were increased from the beginning of berry growth to véraison and ripening stage in both seasons; the TA, malic acid and tartaric acid increased from berry set to véraison whereas they decreased towards the end of the growth seasons in both seasons. On the other hand, the interaction between iron levels and times on growth and development of berries were also discussed.

Key word: Iron spraying, seasonal changes, grape berry.