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Onion

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Published in: Self Improvement, Technology
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Transcript

  • 1.  
  • 2.
    • Kingdom: Plantae Division: Magnoliophyta Class: Liliopsida Order: Asparagales Family: Alliaceae Genus: Allium Species: A. cepa
  • 3.
    • Botanical name: Allium cepa
    • Family : Liliacea
    • Origin & distribution : Central Asia ( Iran &Pakistan)
  • 4.
    • Onions have upright, cylindrical, green leaves attached to the swollen leaf bases that form the bulb below ground.
    • Onion plants grow to be about two feet high
    • Green onions, also called scallions, are either onions that are harvested when they are young or a special type of onion called bunching onion that has small bulbs.
  • 5.
    • Onion are mainly available in red, white and yellow varieties.
    • Some of the onion varieties are Ailsa Craig, Red Baron, Centurion, Orion, Lisbon, Express Yellow .
  • 6.  
  • 7.
    • "Long Day Bulbs" begin to form a bulb, when there is 14-16 hours of daylight. They include Sweet Spanish Onions and Walla Walla onions.
    • "Short Day Bulbs" will begin to bulb when there is 12 - 14 hours of daylight hours. Short day bulbs include Yellow Granex, Texas Grano and Red Burgundy.
  • 8.
    • March – August : Spring/summer fresh onions are available in this season and they are identified by light, thin skin coloured .
    • August – April : Fall/winter onions are available and are identified by thick , dark ,papery skin
  • 9.
    • The main purpose of onion is cooking other than that it is used for
    • Treating bronchial pneumonia
    • Curing cough
    • To treat sore throats
    • To treat bee stings
    • To cure earache
    • It also boosts immune system
  • 10.  
  • 11.  

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