Field experiments were con-ducted at the Experimental Farm of Faculty of Agriculture, Assiut University, Egypt in three con-secutive winter seasons of 2004-2005, 2005-2006 and 2006-2007. The aim of the present experi-ments were to determine the ef-fects of three planting dates, fif-teen garlic ecotypes (11 Balady and 4 Chinese ecotypes) and two plant density (30 and 60 cloves in each row sides) on garlic quality under Assiut province conditions. The obtained results indicated that percentage of total soluble solids, percentage of vitamin C and percentage of sulphur were increased by early planting. However late planting increased the percentage of volatile oil.
Ecotypes from Balady sur-passed Chinese in content of vi-tamin C and percentage of sul-phur. On the other hand, Chinese ecotypes surpassed Balady eco-types in percentage of total solu-ble solids, and percentage of volatile oil.
Plant density did not show
any significant effect in any of the four studied treats.