2.3.4 .The yield
The world average yield in 2002 was 21t/ha of carrot roots. In
tropical Africa yield vary from 8-12t/ha; higher yields are obtained in East
Africa above 1500m altitude. In Europe and the United the States to 30-12t/ha
can be harvested, depending on the type of cultivar and management
.Marketable yield is also much influenced by plant density and time of
harvest. Root weight and uniformity are closed related to seed size and
quantity seed yield are 800-200 kg /ha for open -pollinated and 7000-12000 kg
/ha for F1-hybrid cultivars (Grubben, 2004).
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