The genus Allium contains seven cultivated species of economic importance: the bulb onion (Allium cepa), aggregatum onion (A. cepa var. aggregatum L), shallot (A. cepa var. ascalonium), chive (A. schoenoprasum), Chinese chive (A. tuberosum), Japanese bunching onion (A. fistulosum), garlic (A. sativum), Leek (A. ampeloprasum var. porrum) and rakkyo (A. chinence). Of which, aggregatum onion Allium cepa var. aggregatum Don (2n= 16) is one of the important species of Allium vegetables as it forms an indispensable part of many diets, both vegetarian and non-vegetarian. Onion is valued for its bulbs having characteristic odour, flavor and pungency. | Review on Aggregatum onion Allium cepa L. var. aggregatum Don.
