Commercial Greenhouses
- Created by: MurrMuur
- Created on: 23-12-15 16:11
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- Commercial glasshouses
- Water and Minerals
- Water deficiency
- Close stomata
- Too much water
- Anaerobic soil
- Reduced ability for roots to take up minerals
- Detrimental effect on growth and fruit quality
- Anaerobic soil
- Mineral deficiencies limit plant growth
- Potassium is involved in opening and closing stomata
- Too little potassium impact of photosynthesis efficiency
- Potassium is involved in opening and closing stomata
- Water deficiency
- Temperature
- Poorly controlled temperatures
- Disease
- Reduced photosynthesis
- Changes in fruit colour and quality
- Increases to the optimum temperature increase yield and growth
- Poorly controlled temperatures
- Carbon Dioxide
- Plants are highly responsive to changes in carbon dioxide levels
- Increases up to 1% increase fruit growth and yields
- Increases above 1% have harmful effects
- Plants become thickened and twisted; and fruits turn purple
- Light Intensity
- Photosynthetic rate increases with increased intensity to a maximum
- Very high intensities are damaging
- Fruit crack
- Sun scalding
- Light has to have the correct balance of wavelengths
- Plants respond to quality and intensity
- Water and Minerals
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