Mitigating the impact   of biotic constraints  to build resilient banana           systemsin Central and Eastern Africa   ...
Guy Blomme, Pascale Lepoint, Eldad Karamura,Piet van Asten, Emmanuel Njukwe, Jim Lorenzen                                 ...
Setting the sceneA story from planting till harvestWhat’s next?                                     3
Black Sigatoka                 4
BreedingYield increase 225%                      5
6
The pathogen can adapt: Black resistance breakdown                                                 7
8
Influence of farming system on black SigatokaFarming system   Youngest       % Leaf area                 leaf spotted   wi...
Host response and Yield of plantain   under different management practicesCultural            Youngest   leaf   % Leaf are...
Different infestation with a different soil fertility                              11
The plant-disease/pest complex                                 12
CIALCA characterization study                                13
G X E: warrants multilocational testing                                          14
Setting the sceneA story from planting till harvestWhat’s next?                                     15
Planting:3 different starts                     16
Planting           17
Cleaning of suckers                      18
19
Planting           20
Banana bunchy top                    21
Fusarium oxysporum f.sp. cubense (Foc)                                             22                         Healthy suck...
Different densities                      23
Different densities                      Increased soil temperature                      with effects on nematodes        ...
Banana streak virusAll bananas carry the virus genome,Need to avoid stress                  Good agronomy                 ...
Host response and Yield of plantain   under different management practicesCultural            Youngest   leaf   % Leaf are...
Host response and Yield of plantain   under different management practicesCultural            Youngest   leaf    % Leaf ar...
Intercropswith cocoyamwith climbing beans                      28
With sweet potato???                       29
Sucker thinning                  30
Banana Xanthomonas wilt                          31
High mat and weevils                       32
Weevil trapping                  33
BXW and weevils                  34
BXW and Sigatoka controlBXW and matooke consumption                              35
Setting the sceneA story from planting till harvestWhat’s next?                                     36
Improved banana germplasm  NSH 20 and NSH 42                      FHIA 23 and FHIA 17   37
In vitro culture                   38
Macropropagation        need to get certified healthy        planting material                                    39
Improving productivity Training on recognition, prevention, and resolving pest and disease    problems in bananas         ...
Selection criteria of farmers for       banana varieties   Criterion           PC1           PC2   Bunch size             ...
Mitigating the impact   of biotic constraints  to build resilient banana           systemsin Central and Eastern Africa   ...
Upcoming SlideShare
Loading in …5
×

Swennen - Mitigating the impact of biotic constraints to build resilient banana systems in Central and East Africa

4,561 views

Published on

Presentation delivered at the CIALCA international conference 'Challenges and Opportunities to the agricultural intensification of the humid highland systems of sub-Saharan Africa'. Kigali, Rwanda, October 24-27 2011.

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
4,561
On SlideShare
0
From Embeds
0
Number of Embeds
2,978
Actions
Shares
0
Downloads
0
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Swennen - Mitigating the impact of biotic constraints to build resilient banana systems in Central and East Africa

  1. 1. Mitigating the impact of biotic constraints to build resilient banana systemsin Central and Eastern Africa Rony Swennen
  2. 2. Guy Blomme, Pascale Lepoint, Eldad Karamura,Piet van Asten, Emmanuel Njukwe, Jim Lorenzen 2
  3. 3. Setting the sceneA story from planting till harvestWhat’s next? 3
  4. 4. Black Sigatoka 4
  5. 5. BreedingYield increase 225% 5
  6. 6. 6
  7. 7. The pathogen can adapt: Black resistance breakdown 7
  8. 8. 8
  9. 9. Influence of farming system on black SigatokaFarming system Youngest % Leaf area leaf spotted with symptomsField 4.9 22.2Homestead 6.9 17.1LSD* (0.05) 0.9 2.1 9
  10. 10. Host response and Yield of plantain under different management practicesCultural Youngest leaf % Leaf area with Yield (t/ha)Practice spotted symptomsControl 5.5 a 19.6 d 15.8 aVigna unguiculata 7.5 b 10.3 c 18.3 aN-P-K 8.1 b 6.9 b 21.7 bWood sawdust 9.3 c 4.2 a 25.0 cRice husk 10.9 d 3.8 a 29.2 d 10
  11. 11. Different infestation with a different soil fertility 11
  12. 12. The plant-disease/pest complex 12
  13. 13. CIALCA characterization study 13
  14. 14. G X E: warrants multilocational testing 14
  15. 15. Setting the sceneA story from planting till harvestWhat’s next? 15
  16. 16. Planting:3 different starts 16
  17. 17. Planting 17
  18. 18. Cleaning of suckers 18
  19. 19. 19
  20. 20. Planting 20
  21. 21. Banana bunchy top 21
  22. 22. Fusarium oxysporum f.sp. cubense (Foc) 22 Healthy sucker???
  23. 23. Different densities 23
  24. 24. Different densities Increased soil temperature with effects on nematodes 24
  25. 25. Banana streak virusAll bananas carry the virus genome,Need to avoid stress Good agronomy 25
  26. 26. Host response and Yield of plantain under different management practicesCultural Youngest leaf % Leaf area with Yield (t/ha)Practice spotted symptomsControl 5.5 a 19.6 d 15.8 aVigna unguiculata 7.5 b 10.3 c 18.3 aN-P-K 8.1 b 6.9 b 21.7 bWood sawdust 9.3 c 4.2 a 25.0 cRice husk 10.9 d 3.8 a 29.2 d 26
  27. 27. Host response and Yield of plantain under different management practicesCultural Youngest leaf % Leaf area with Yield (t/ha)Practice spotted symptomsControl 5.5 a 19.6 d 15.8 aVigna unguiculata 7.5 b 10.3 c 18.3 aN-P-K 8.1 b 6.9 b 21.7 bWood sawdust 9.3 c 4.2 a 25.0 cRice husk 10.9 d 3.8 a 29.2 d Soil cover 27
  28. 28. Intercropswith cocoyamwith climbing beans 28
  29. 29. With sweet potato??? 29
  30. 30. Sucker thinning 30
  31. 31. Banana Xanthomonas wilt 31
  32. 32. High mat and weevils 32
  33. 33. Weevil trapping 33
  34. 34. BXW and weevils 34
  35. 35. BXW and Sigatoka controlBXW and matooke consumption 35
  36. 36. Setting the sceneA story from planting till harvestWhat’s next? 36
  37. 37. Improved banana germplasm NSH 20 and NSH 42 FHIA 23 and FHIA 17 37
  38. 38. In vitro culture 38
  39. 39. Macropropagation need to get certified healthy planting material 39
  40. 40. Improving productivity Training on recognition, prevention, and resolving pest and disease problems in bananas 40
  41. 41. Selection criteria of farmers for banana varieties Criterion PC1 PC2 Bunch size 0.09 0.44 -0.02 Drought tolerance 0.46 -0.01 Marginal-soil 0.58 tolerance Availability 0.18 0.32 Taste 0.01 0.41 Maturation 0.05 0.41 Market 0.02 0.43 Longevity 0.60 0.02 = sustainability Pest tolerance -0.02 0.30 Toppling -0.23 0.24 Eigen Value 2.2 2.0 Total Variation % 22 20 41
  42. 42. Mitigating the impact of biotic constraints to build resilient banana systemsin Central and Eastern Africa Rony Swennen

×