Main > Food and Agriculture > Agroforestry
https://inis.iaea.org/search/search.aspx?orig_q=RN:20056133
http://www.actahort.org/books/159/index.htm
https://books.google.com/books?id=ID20AAAAIAAJ&pg=PA214&lpg=PA214&dq=apple+trees+dominant+recessive+traits&source=bl&ots=W60hhkyscJ&sig=a-eYyaaJjGIHaHH__0y4ARAFFGo&hl=en&sa=X&ved=0CEYQ6AEwCDgKahUKEwihyJvD6KnIAhVMW4gKHVVLD9s#v=onepage&q=apple%20trees%20dominant%20recessive%20traits&f=false