1989 William S. Castle, D.P.H. Tucker, A.H. Krezdorn, C.O. Youtsey publish the 1st edition of “Rootstocks for Florida Citrus”. Originally, there were 12 rootstocks discussed at length. 1993 William S. Castle, D.P.H. Tucker, A.H. Krezdorn, C.O. Youtsey publish the 2nd edition of “Rootstocks for Florida Citrus”, were 7 new rootstocks were added to the 2nd edition. 1998 From laminated spreadsheets to a useful informative wheel for growers. 2006 This updated wheel added additional rootstocks and was further developed into a web-based exerpt system designed for growers.Rootstock for Florida Citrus (SP 42)
Rootstocks for Florida Citrus 2nd Edition (SP 42)
The Florida Citrus Rootstock Selection Guide (SP 248)
Florida Citrus Rootstock Selection Guide” (SP 248)