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Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
Pruning, Spacing Tomatoes in High Tunnels 2012
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Pruning, Spacing Tomatoes in High Tunnels 2012

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by Terrance Nennich. Presented at the 2012 MN Statewide High Tunnel Conference.

by Terrance Nennich. Presented at the 2012 MN Statewide High Tunnel Conference.

Published in: Technology, Self Improvement
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  • 1. Pruning and Spacing Tomatoes in High Tunnels Terrance T, Nennich Extension Professor Fruit and Vegetable Production University of Minnesota Extension
  • 2. NCROC These studies were conducted at the North Central Research and Outreach Center , Grand Rapids Minnesota
  • 3. Pruning Increases fruit size. Promotes earlier harvest Reduces disease incidence. Reduces grey wall. Better air flow
  • 4. Pruning is mostpractical for…•Small tomatoplantings.•High Tunnel tomatovarieties.•Late-seasondeterminate varieties.
  • 5. PruningTimeliness is of the most Importance
  • 6. Determinate TypesBush tomatoesEnds with terminal budsEasier to pruneGrowth is smallerMost new releases are determinateAct different in high tunnels
  • 7. Pruning Determinant TypesWait until plant has first flowers and tomato is the size of a nickelGoing down skip one branchPrune out everything belowCan be pruned to one or two leadersThis will increase size and make a earlier harvest.
  • 8. Non-prunedPruned
  • 9. Determinate Tomato Pruning Study Lbs/Plant Ripe Fruit HarvestPruning 1st % # Fruit/ Lbs / Lbs/ Early* RipeTreatment Ripe Good Plant Fruit Sq. Ft.2003-Cultivar DebutSingle Stem 7/24 2.5 8.8 63% 17.0 0.534 1.40Double Stem 7/21 1.9 12.3 58% 25.2 0.505 1.952004-Cultivar SunshineSingle Stem 7/26 1.6 10.5 76% 19.6 0.534 1.67Double Stem 7/23 1.2 12.1 73% 23.2 0.523 1.92No Prune 8/9 0.0 22.1 81% 47.8 0.462 3.51 * Early harvest through 8/2
  • 10. Do not over prune. Fruit needs leaf cover to prevent sunburn. Source: L. Kamar
  • 11. Indeterminate Types Continual Growth 7-15 foot of height. Continual tomato production Even production Smaller production in given time.
  • 12. Pruning Indeterminate TypesWait until plant has first flowers and tomato is the size of a nickelGoing down skip one sucker branchPrune out everything belowCan be pruned to one or two leadersAll suckers must be removed during the season.
  • 13. Sucker or axillaryshootMust be less than 4inches long.
  • 14. PRUNING TOMATOES
  • 15. Indeterminate Tomato Pruning Study- Cobra 2004 Lbs/Plant Ripe Fruit HarvestPruning 1st % # Fruit/ Lbs / Lbs/ Early* RipeTreatments Ripe Good Plant Fruit Sq. Ft.Single Stem 8/6 0.1 15.5 74% 35.6 0.436 2.46Double Stem 8/12 0.0 17.0 73% 46.4 0.367 1.70No Prune 8/19 0.0 13.6 61% 47.8 0.286 2.16 * Early harvest through 8/2/04
  • 16. 2006 Indeterminate Tomato Production - Cobra Lbs/Plant Ripe Fruit Harvest 1st % # Fruit/ Lbs / Lbs/ Early* Ripe TotalTreatment Ripe Good Plant Fruit Sq. Ft.Spacing18" 7/20 5.8 15.7 24.9 b 64% 40.7 b 0.392 2.5024" 7/20 7.2 19.5 29.7 a 66% 48.1 a 0.407 2.32StemsSingle 7/19 6.7 16.2 24.8 b 65% 37.7 b 0.428 a 2.23Double 7/21 6.4 19.0 29.8 a 64% 51.1 a 0.372 b 2.58 * Early harvest through 8/2/06
  • 17. SanitationPrune with clean toolsDisinfect while usingIf there any plants that are stunted or diseased do them last or pull them out.
  • 18. Spacing Studies
  • 19. Spacing Studies Will plant spacing make a difference with  Earliness??  Tomato Size ??  Total yield??
  • 20. Determinate Tomato Spacing Study Lbs/Plant Ripe Fruit Harvest 1st % # Fruit/ Lbs / Lbs/ Early* RipeSpacing Ripe Good Plant Fruit Sq. Ft.2003-Cultivar Debut12” 7/24 3.1 9.1 68% 16.7 0.558 2.1718” 7/21 2.9 8.3 68% 18.0 0.476 1.3224” 7/21 4.0 8.3 59% 13.7 0.583 0.992004-Cultivar Sunshine12” 7/23 1.2 7.9 72% 17.0 0.467 1.8818” 7/28 1.0 8.1 79% 17.8 0.458 1.2824” 7/26 1.2 9.8 69% 17.8 0.550 1.17 * Early harvest through 8/2
  • 21. 2006 Determinate Tomato Production – Sunstart Lbs/Plant Ripe Fruit Harvest % # Fruit/ Lbs/ Lbs/ Early* Ripe TotalTreatment Good Plant Fruit Sq. Ft.Stems x SpacingSingle 12" 5.15 b 7.47 b 11.00 c 69% 18.4 b 0.409 1.78 bcSingle 18" 5.10 b 8.70 b 12.52 c 70% 20.0 b 0.440 1.38 cdSingle 24" 5.20 b 7.95 b 11.99 c 66% 17.6 b 0.459 0.95 dDouble 12" 6.52 ab 9.50 ab 14.51 bc 65% 23.3 ab 0.410 2.26 aDouble 18" 7.60 a 12.13 a 17.62 ab 70% 29.0 a 0.421 1.93 abDouble 24" 7.51 a 11.95 a 18.66 a 65% 28.2 a 0.425 1.42 cd* Early harvest through 8/2/06
  • 22. 2006 Determinate Tomato Production - Sunstart Lbs/Plant Ripe Fruit Harvest 1st % # Fruit/ Lbs/ Lbs/ Early* Ripe TotalTreatment Ripe Good Plant Fruit Sq. Ft.Spacing 12" 7/8 5.8 8.5 b 12.8 67% 20.9 0.409 2.02 a 18" 7/6 6.4 10.4 a 15.1 70% 24.5 0.431 1.66 b 24" 7/7 6.4 10.0 ab 15.3 65% 22.9 0.442 1.18 cStemsSingle 7/7 5.2 b 8.0 b 11.8 b 68% 18.7 b 0.436 1.37 bDouble 7/7 7.2 a 11.2 a 16.9 a 67% 26.8 a 0.419 1.87 a* Early harvest through 8/2/06
  • 23. Sunstart Yield By Fruit Category (lbs/sq. ft.) Treatment Early* Good Spoiled Immature Total Single 12" 1.23 b 1.78 bc 0.60 ab 0.24 cd 2.62 bc Single 18" 0.81 cd 1.38 cd 0.27 c 0.34 bc 1.99 cd Single 24" 0.62 d 0.95 cd 0.33 c 0.15 cd 1.43 d Double 12" 1.55 a 2.26 a 0.63 a 0.57 a 3.46 a Double 18" 1.21 b 1.93 ab 0.46 abc 0.41 ab 2.80 ab Double 24" 0.89 c 1.42 cd 0.40 bc 0.40 abc 2.22 bc* Early harvest through 8/2/06
  • 24. 2006 Indeterminate Tomato Production – Cobra Lbs/Plant Ripe Fruit Harvest 1st % # Fruit/ Lbs / Lbs/ Early* Ripe TotalTreatment Ripe Good Plant Fruit Sq. Ft.Stems x SpacingSingle 18" 7/19 6.4 15.4 24.1 b 64% 61.3 c 0.434 a 2.44 abSingle 24" 7/19 6.9 17.0 25.7 b 67% 67.9 bc 0.422 a 2.03 bDouble 18" 7/20 5.2 16.1 25.5 b 64% 82.5 b 0.350 b 2.55 abDouble 24" 7/21 7.6 21.9 33.9 a 65% 96.7 a 0.393 ab 2.60 a* Early harvest through 8/2/06
  • 25. Indeterminate Tomato Spacing Study Cultivar-Cobra Lbs/Plant Ripe Fruit Harvest 1st % # Fruit/ Lbs / Lbs/ Early* RipeSpacing Ripe Good Plant Fruit Sq. Ft.200312” 8/8 0.1 9.6 59% 22.8 0.429 2.2918” 7/28 1.1 11.8 58% 29.3 0.401 1.8724” 8/1 0.6 15.8 72% 40.3 0.393 1.88200412” 8/9 0.0 13.7 77% 32.7 0.419 3.2618” 8/6 0.1 14.1 76% 34.6 0.408 2.2424” 8/6 0.1 21.6 82% 43.6 0.496 2.57 * Early harvest through 8/2
  • 26. Cobra Yield By Fruit Category (lbs/sq. ft.)Treatment Early Good Spoiled Immature Total Single-18" 1.01 2.44ab 0.57 0.81ab 3.82a Single-24" 0.82 2.03b 0.41 0.62b 3.06b Double-18" 0.82 2.55ab 0.57 0.93a 4.04a Double-24" 0.90 2.60a 0.57 0.86ab 4.05a
  • 27. Pruning and Spacing Tomatoes in High Tunnels Questions ??

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