This project aimed to compare yield and quality performance of nine tomato cultivars (Tone Guitar, Fulltom, Cal F1, Red Gold, Quaresma, Dutch Standard, Feisty Red, Forrester, Valouro) under different greenhouse technologies at Estidamah Research Centre
- Two greenhouse types: High-Tech and Med-Tech
- Two glass covering materials in Med-Tech (Diffuse and Clear glass)
- Artificial light in Hi-Tech
AC-cooled greenhouse increased marketable yield of tomato cultivars up to 28% than Med-Tech greenhouse
- Clearly, the production of the Dutch variety exceeds other varieties in all compartments.
- Red Gold resulted in a lesser total yield than other cultivars.
- No difference is found between Diffuse and Clear Glass Covering Materials.
Artificial Light Improved Production of Year-round Tomato Cultivars under Hi-Tech Greenhouse
Artificial light technology produced a 10% more tomato marketable yield.
Fulltom cultivar showed the highest impact by artificial light.
Ton Guitar cultivar did not respond to artificial light.
Hi-Tech Greenhouses Slightly Increased Number of Fruits per Plant, while no Differences were Found between Diffuse and Clear Glass under Med-Tech Greenhouses
Tone Guitar recorded a smaller number of fruits under diffuse glass.
Dutch cultivar showed the best fruit number compared to other cultivars under clear glass.
Artificial Light Increased Number of Tomato Fruits per Plant up to 11%
Dutch cultivar showed the best number of fruits compared to other cultivars.
Red Gold and Forrester resulted in a lesser number of fruits than other cultivars in normal condition, while application of artificial light remarkably improved the Forrester number of fruits.
Significant differences between tomato cultivars regarding BER percentage
Valouro and Forrester are the most sensitive cultivars, while Tone Guitar, Red Gold and Feisty Red are moderately sensitive.
Fulltom, Call F1, Quaresma and Dutch Standard are the least sensitive cultivars.
Net water use in Hi-Tech greenhouse is 75 % lesser than the water use in the Mid-Tech greenhouse, with a higher production
Water use efficiency (WUE) was much lesser in Hi-Tech greenhouse
No difference was found between artificial light or no-light in Hi-Tech greenhouse
- Vaouro and Forester are the most sensitive cultivars, while Tone Guitar, Red Gold NAD Festy red are moderately sensitive
- Fulltom, Call F1, Quaresma and Dutch standard are the least sensitive cultivars
|Mid-Tech Diffuse glass
|Mid-Tech Clear glass
|Hi-Tech Art. Light
|Hi-Tech Art. Light
|Net water use
Water use for the different compartments in l/m2
- High yield cultivars could be introduced to the local market, however hygiene practices must be adapted.
- Greenhouse cover materials did not affect tomato production.
- CO2 enrichment is the limited factor of increasing yield and number of fruits under Hi-tech as compared to Med-tech.
- Further investigation is needed to optimize BER and Artificial light under the Hi-Tech greenhouse.
- Hi-Tech greenhouses improved WUE by 85% as compared to Med-Tech greenhouses.