2005 C. Thomas Chao & Carol J. Lovat (Improving the Efficacy of GA3)

Improving the Efficacy of GA3 to Increase Fruit Set and Yield of Clementine Mandarins in California

The overall goals of this research are to identify the proper rate, proper timing, and best frequency of GA3 and/or 1% urea applications to increase fruit set and yield of Nules Clementine mandarin (Citrus reticulata Blanco). We also will determine if there is any negative effect on the current and following year’s yield due too high a concentration or too frequent applications of moderate rates of GA3. We will provide growers with updated recommendations and the necessary data to amend the label for use of GA3 on Clementinemandarins in California.