تأثير معاملة المجموع الخضري بالكبريت رشا و تعفيرا في الصفات الإنتاجية للشوندر السكري (Beta vulgaris)‎ و درء ظهور مرض البياض الدقيقي (Erysiphe polygon)‎

الملخص EN

This research was conducted in Damascus Ghoota during two crop years 2007 and 2008 on the sugar beet variety, Dita, (mono-embryo) in the aim of investigating the effect of sulfur on the productivity traits of sugar beet.

Crop growing occurred in March and sulfur was applied to control powdery mildew in two ways; sprayi ing (g/ 10L) and dusting (g/ 20m2), in four levels (0, 50, 75 and 100).

The results showed that using sulfur in both ways contributed to a significant increase in root yield and the other productivity traits compared to the control, where root yield reached (10.25) tons.h-1, with the highest yield (77 ton.h-1) accompanied to spraying dissolved sulfur (75 g/ 10L) on the leaves.

On the other hand, root yield reached (63 ton.h-1) by dusting the sulfur.

Moreover, the degree of sweetness attained (16.4%) and (15.9%) by spraying the dissolved sulfur and sulfur dusting respectively.