Effect of Planting Dates on the Productivity, Quality and Stemphylium Leaf Blight disease of Some Onion Cultivars Under Nubaria Conditions

Abstract

Onion (Allium cepa L) is one of the most important crops grown in Egypt. The area harvested was about 63.723 hectares (ha), while the national production was about 2304210 tons (FAO, 2018). In Egypt onion (Allium cepa L.) is one of the most important crops on account of its value for local consumption and exportation commodity. Since great attention