The New Zealand Institute for Plant & Food Research Limited




Avocado – Fruit set

Mark Goodwin, Lisa Evans and Heather ...
Aim:


To see if we can determine which flowers will set
fruit.




                                The New Zealand Instit...
Introduction:



 • Morphology
 • Pollinators
 • Fruit set
 • Summary




                 The New Zealand Institute for P...
Female phase    Male phase




               The New Zealand Institute for Plant & Food Research Limited
The New Zealand Institute for Plant & Food Research Limited
Morning - Female
Day 1
                                                                        Morning –
                 ...
Morning - Female
Day 1
                                                                         Morning –
                ...
Afternoon - Female
Day 1
                             Morning –
                             Female



         Closed
   ...
The New Zealand Institute for Plant & Food Research Limited
The New Zealand Institute for Plant & Food Research Limited
The New Zealand Institute for Plant & Food Research Limited
Determinate vs. indeterminate

 Treatment      No. of   No. of flowers       No. of fruit                                 ...
Determinate vs. indeterminate

 Treatment      No. of   No. of flowers       No. of fruit                                 ...
Determinate vs. indeterminate

 Treatment      No. of   No. of flowers       No. of fruit                                 ...
Determinate vs. indeterminate

 Treatment      No. of   No. of flowers       No. of fruit                                 ...
Determinate vs. indeterminate

 Treatment      No. of   No. of flowers       No. of fruit                                 ...
0.7


                    0.6


                    0.5
Percent fruit set




                    0.4


                  ...
Inflorescence removal

 Treatment   No. of trees   No. of fruit (19/02/09)                                 Average % set

...
Inflorescence removal

 Treatment   No. of trees   No. of fruit (19/02/09)                                 Average % set

...
Inflorescence removal

 Treatment   No. of trees   No. of fruit (19/02/09)                                 Average % set

...
Hand pollination

 Treatment      No. of     No. of      No. of            No. of    Average
                trees    repl...
Hand pollination

 Treatment      No. of     No. of      No. of            No. of    Average
                trees    repl...
8




                    6
Percent fruit set




                    4




                    2




                    ...
Summary


• No determinate/indeterminate effect

• Base tip effect 5X

• Pollen added effect 30x

• Suggests pollination l...
Conclusion


We can increase fruit set by adding pollen




                                  The New Zealand Institute fo...
Next season


Repeat last season

Distribution of fruit on trees relative to pollinizers

Repeat pollinations - 5 Flowers ...
The New Zealand Institute for Plant & Food Research Limited




www.plantandfood.com




mark.goodwin@plantandfood.co.nz
Lisa Evans
Lisa Evans
Lisa Evans
Lisa Evans
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Lisa Evans

  1. 1. The New Zealand Institute for Plant & Food Research Limited Avocado – Fruit set Mark Goodwin, Lisa Evans and Heather McBrydie
  2. 2. Aim: To see if we can determine which flowers will set fruit. The New Zealand Institute for Plant & Food Research Limited
  3. 3. Introduction: • Morphology • Pollinators • Fruit set • Summary The New Zealand Institute for Plant & Food Research Limited
  4. 4. Female phase Male phase The New Zealand Institute for Plant & Food Research Limited
  5. 5. The New Zealand Institute for Plant & Food Research Limited
  6. 6. Morning - Female Day 1 Morning – Male Closed Afternoon – Female Day 2 Morning - Male The New Zealand Institute for Plant & Food Research Limited
  7. 7. Morning - Female Day 1 Morning – Male Closed Afternoon – Female Day 2 Afternoon - Male The New Zealand Institute for Plant & Food Research Limited
  8. 8. Afternoon - Female Day 1 Morning – Female Closed Afternoon – Male Day 2 Morning - Male
  9. 9. The New Zealand Institute for Plant & Food Research Limited
  10. 10. The New Zealand Institute for Plant & Food Research Limited
  11. 11. The New Zealand Institute for Plant & Food Research Limited
  12. 12. Determinate vs. indeterminate Treatment No. of No. of flowers No. of fruit Average % trees (19/02/09) fruit set Determinate Indeterminate The New Zealand Institute for Plant & Food Research Limited
  13. 13. Determinate vs. indeterminate Treatment No. of No. of flowers No. of fruit Average % trees (19/02/09) fruit set Determinate 20 Indeterminate 20 The New Zealand Institute for Plant & Food Research Limited
  14. 14. Determinate vs. indeterminate Treatment No. of No. of flowers No. of fruit Average % trees (19/02/09) fruit set Determinate 20 29865 Indeterminate 20 23793 The New Zealand Institute for Plant & Food Research Limited
  15. 15. Determinate vs. indeterminate Treatment No. of No. of flowers No. of fruit Average % trees (19/02/09) fruit set Determinate 20 29865 56 Indeterminate 20 23793 40 The New Zealand Institute for Plant & Food Research Limited
  16. 16. Determinate vs. indeterminate Treatment No. of No. of flowers No. of fruit Average % trees (19/02/09) fruit set Determinate 20 29865 56 0.18 Indeterminate 20 23793 40 0.24 The New Zealand Institute for Plant & Food Research Limited
  17. 17. 0.7 0.6 0.5 Percent fruit set 0.4 0.3 0.2 0.1 0.0 2 4 6 8 10 12 14 16 18 20 Inflorescence The New Zealand Institute for Plant & Food Research Limited
  18. 18. Inflorescence removal Treatment No. of trees No. of fruit (19/02/09) Average % set Tip 20 Base 20 Control 20 The New Zealand Institute for Plant & Food Research Limited
  19. 19. Inflorescence removal Treatment No. of trees No. of fruit (19/02/09) Average % set Tip 20 Base 20 Control 20 The New Zealand Institute for Plant & Food Research Limited
  20. 20. Inflorescence removal Treatment No. of trees No. of fruit (19/02/09) Average % set Tip 20 32 0.398 Base 20 7 0.087 Control 20 35 0.225 The New Zealand Institute for Plant & Food Research Limited
  21. 21. Hand pollination Treatment No. of No. of No. of No. of Average trees replicates flowers fruit % fruit set (19/02/09) Determinate 11 14 277 Indeterminate 11 14 287 The New Zealand Institute for Plant & Food Research Limited
  22. 22. Hand pollination Treatment No. of No. of No. of No. of Average trees replicates flowers fruit % fruit set (19/02/09) Determinate 11 14 277 16 5.7 Indeterminate 11 14 287 13 4.6 The New Zealand Institute for Plant & Food Research Limited
  23. 23. 8 6 Percent fruit set 4 2 0 0 1 2 3 Control Hand pollinated The New Zealand Institute for Plant & Food Research Limited
  24. 24. Summary • No determinate/indeterminate effect • Base tip effect 5X • Pollen added effect 30x • Suggests pollination limiting The New Zealand Institute for Plant & Food Research Limited
  25. 25. Conclusion We can increase fruit set by adding pollen The New Zealand Institute for Plant & Food Research Limited
  26. 26. Next season Repeat last season Distribution of fruit on trees relative to pollinizers Repeat pollinations - 5 Flowers per inflorescence Check hand pollinations Possibly look at bee movements The New Zealand Institute for Plant & Food Research Limited
  27. 27. The New Zealand Institute for Plant & Food Research Limited www.plantandfood.com mark.goodwin@plantandfood.co.nz

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