Intrduction about onion
(Rabail gandahi, Hyderabad pakistan)
The Onion is one of the oldest
vegetables used by human beings as a raw vegetables and seems to have been in
cultivation several thousand years before christ (Ginai,1970).onion is Probably
a native of Asia.it has been grown for food since the recorded history of
mankind and is mention in the Bible.
The leading onion producing countries in order of importance are USA,Spain,and
Turkey.in Pakistan onions are being grown since time immemorial as a basic
condiment for culinary purpose.The area onion was 109.8 thousand hectares with
production of 1648 thousand tonnes per annum.the national average yield for the
last fie year is 752 kg per hector.