== Inaccuracies == 

 This is my first post on Wikipedia & therefore I would rather point out the problems & let someone else make the changes or argue against them. 

 Item 1. “Because the mutation left the fruit seedless and therefore sterile, the only means available to cultivate more of this new variety is to graft cuttings onto other varieties of citrus tree.”   
  	 Not all Navel oranges are seedless as can be confirmed by checking the Web.  In fact, I just finished eating one in a bag of Navels from Florida.  That is what led me to this article. 

 Item 2. “Orange trees and fruit are susceptible to frost damage. Growers commonly use sprinklers to coat them with water when temperatures are expected to go below freezing. This practice protects the crops because the freezing of water absorbs heat energy, protecting the foliage as ice begins to form. The thin layer of water/ice also acts as a layer of insulation that protects the leaves from cold winds.” 
  	 Unfortunately, this has the thermodynamics exactly backwards.  When water freezes to ice heat is released.  Think of the reverse process: It is obvious that ice absorbs heat when it melts. 

 Item 3.  Ref. 6 is a very poor citation in my opinion.  The question is poorly worded and the answerers playing as scientists give even more poorly worded explanations.  Guaranteed to confuse anyone, including whoever wrote the sprinkling process.