Polyhouse cultivation produced 188.93% more fruits per plant than open field cultivation.

protected cultivation · yield · Solanum lycopersicum (tomato)Results differ

21 papers in the same direction as this claim · 2 in the opposite direction

1. positive
   Grafted tomatoes in NVPH yielded 63.79% more than non-grafted tomatoes in open field.

   Vegetable grafting: a scientific innovation to enhance productivity and profitability of tomato growers under climate change · 2025 · compared with non-grafted tomatoes grown under open field conditions

   Same directionCites this paper

2. no effect
   High tunnels did not increase total tomato yield compared with the open field.

   Influence of High Tunnel Production and Planting Date on Yield, Growth, and Early Blight Development on Organically Grown Heirloom and Hybrid Tomato · 2012 · compared with open field

   Opposite direction

3. negative
   Tunnel-grown tomato yields over a 30-day period were less than field yields.

   HIGH TUNNELS EXTEND THE SEASON FOR TOMATOES · 1992 · compared with the field

   Opposite direction

4. positive
   Yields were 33% greater in the high tunnel system than in the field system in the second year.

   High Tunnel and Field Production of Organic Heirloom Tomatoes: Yield, Fruit Quality, Disease, and Microclimate · 2012 · compared with field system

   Same direction

5. positive
   Polyhouse tomato plants had increased plant height, number of branches per plant and rate of leaf area expansion compared with open-field plants.

   Phenological Development and Production Potentials of Tomato under Polyhouse Climate · 2010 · compared with open field

   Same direction

6. positive
   Polyhouse tomato fruit yield was higher at 2.6 kg plant-1 than open-field yield at 1.5 kg plant-1.

   Tomato Fruit Quality under Protected Environment and Open Field Conditions · 2014 · compared with open field

   Same direction

7. positive
   High tunnels raised tomato yield in 2010.

   The Effect of Open-Ended High Tunnels in Western Washington on Late Blight and Physiological Leaf Roll Among Five Tomato Cultivars · 2014 · compared with open-field production

   Same direction

8. positive
   Pepper and tomato yields were greater in high tunnels than open fields.

   Yields, Fruit Quality, and Water Use in a Jalapeno Pepper and Tomatoes under Open Field and High-tunnel Production Systems in the Texas High Plains · 2020 · compared with OF

   Same direction

15 papers more in this group