1.1 Introduction
Onion (Allium cepa L.) is one of the important vegetable crops grown globally, which belongs to the family Liliaceae. It is subdivided into three groups: Allium cepa, Allium aggregation, Allium prolilum, which are all diploids (Boukary, 2012). Onion is the common name for the herbaceous, cold season plant Allium cepa, which is characterized by a edible, rounded bulb composed of concentric, fleshy, tightly packed, and enlarged leaf bases. Onion is also the name of this edible bulb, which is commercially valuable and known for its pungent oil that departs a strong taste.
As a prelude to other parts of this study, this chapter will discuss the background upon which this study was initiated, the statement of problems that led to this study, the Aim and Objectives of the study. Others are Significance of the study, Scope of work, Research hypothesis and questions, Limitations of the Study and Definition of technical terms.
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