Abstract
Summary Bell pepper ‘Fiesta’ (Capsicum annuum L.) was grown in a novel dynamic climate concept called ‘IntelliGrow’ together with a number of potted plants aiming to save energy under low light conditions and to optimise photosynthesis (and thereby carbon gain that can be used for growth) under high light conditions. The dynamic climates utilize the plants ability to increase the photosynthesis and productivity under adequate light conditions by allowing temperature to increase while supplying the plants with extra CO 2 . Energy is saved by allowing the temperature to decrease to lower levels than usual at low light conditions, when the temperature response curve of photosynthesis is very flat. Both temperature and CO 2 is determined by the light level (light dependent temperature and CO2 increase in the climate computer). It is possible to reduce the energy use needed for bell pepper growing by up to 21 % in this experiment depending on climate control strategy. Temperatures below 17 °C results in reduced fruit quality in terms of size and quality and increased risk of grey mould and also a delay in the harvest start. On the other hand the total number of fruits was not affected in a similar way. The standard climate 21/19 day/night with 600 ppm CO 2 in light and the dynamic climate using 80 % photosynthesis and a minimum temperature set point of 17 °C, especially in combination with short peaks of higher night temperature gave the same or better harvest and approximately the same quality. The fruits in the warmest climate, however, had a slightly lower dry matter-%. There were limited damages (spots, sun burns) due to the relatively higher temperatures during the day even thought the air temperature was allowed to rise to 30 °C during the days. The increased CO 2 level might have alleviated some of the potential damages due to high fruit temperatures. The major problem was remains of the flowers on the fruits, which created an entry point for grey mould. The post harvest quality of the fruits was therefore poorer in the dynamic climates due to infection with Botrytis primarily through the flowers and secondarily through the fruit stem. A modified energy saving strategy therefore requires a change in harvest procedure to remove flower remains.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 13
Claim · model-written summary
Dynamic climate control reduced energy use for bell pepper growing by up to 21 %.
- Taxon
- bell peppere0
- Treatment
- climate control strategye0
- Outcome
- energy usee0
- Direction
- reducee0
- Value
- up to 21 %e0
Not reportedComparator
Verbatim
e0“It is possible to reduce the energy use needed for bell pepper growing by up to 21 % in this experiment depending on climate control strategy.”
Claim · model-written summary
Temperatures below 17 °C reduced fruit size and quality.
- Taxon
- Bell Pepperst0
- Treatment
- Temperatures below 17 °Ce0
- Outcome
- fruit quality in terms of size and qualitye0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Temperatures below 17 °C results in reduced fruit quality in terms of size and quality and increased risk of grey mould and also a delay in the harvest start.”
t0“Bell Peppers”
Claim · model-written summary
Temperatures below 17 °C increased grey mould risk.
- Taxon
- Bell Pepperst0
- Treatment
- Temperatures below 17 °Ce0
- Interactor
- grey moulde0pathogen
- Outcome
- risk of grey moulde0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Temperatures below 17 °C results in reduced fruit quality in terms of size and quality and increased risk of grey mould and also a delay in the harvest start.”
t0“Bell Peppers”
Claim · model-written summary
Temperatures below 17 °C delayed harvest start.
Not reportedComparator
Verbatim
e0“Temperatures below 17 °C results in reduced fruit quality in terms of size and quality and increased risk of grey mould and also a delay in the harvest start.”
t0“Bell Peppers”
Claim · model-written summary
Total fruit number was not similarly affected.
Verbatim
e0“On the other hand the total number of fruits was not affected in a similar way.”
t0“Bell Peppers”
Claim · model-written summary
The dynamic climate gave the same or better harvest than the standard climate.
Verbatim
e0“The standard climate 21/19 day/night with 600 ppm CO 2 in light and the dynamic climate using 80 % photosynthesis and a minimum temperature set point of 17 °C, especially in combination with short peaks of higher night temperature gave the same or better harvest and approximately the same quality.”
t0“Bell Peppers”
Claim · model-written summary
The dynamic climate gave approximately the same quality as standard climate.
Verbatim
e0“The standard climate 21/19 day/night with 600 ppm CO 2 in light and the dynamic climate using 80 % photosynthesis and a minimum temperature set point of 17 °C, especially in combination with short peaks of higher night temperature gave the same or better harvest and approximately the same quality.”
t0“Bell Peppers”
Claim · model-written summary
Fruit dry matter percentage was slightly lower in the warmest climate.
Not reportedComparator
Verbatim
e0“The fruits in the warmest climate, however, had a slightly lower dry matter-%.”
t0“Bell Peppers”
Claim · model-written summary
Fruit spots and sun burns were limited despite daytime temperature reaching 30 °C.
Verbatim
e0“There were limited damages (spots, sun burns) due to the relatively higher temperatures during the day even thought the air temperature was allowed to rise to 30 °C during the days.”
t0“Bell Peppers”
Claim · model-written summary
The authors suggest increased CO 2 might alleviate damage from high fruit temperatures.
Verbatim
e0“The increased CO 2 level might have alleviated some of the potential damages due to high fruit temperatures.”
t0“Bell Peppers”
Claim · model-written summary
Flower remains on fruits created an entry point for grey mould.
Verbatim
e0“The major problem was remains of the flowers on the fruits, which created an entry point for grey mould.”
t0“Bell Peppers”
Claim · model-written summary
Postharvest fruit quality was poorer in dynamic climates due to Botrytis infection.
- Taxon
- Bell Pepperst0
- Treatment
- dynamic climatese0
- Outcome
- post harvest quality of the fruitse0
- Direction
- poorere0
BotrytisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The post harvest quality of the fruits was therefore poorer in the dynamic climates due to infection with Botrytis primarily through the flowers and secondarily through the fruit stem.”
t0“Bell Peppers”
Claim · model-written summary
The authors recommend removing flower remains during harvest for an energy saving strategy.
Verbatim
e0“A modified energy saving strategy therefore requires a change in harvest procedure to remove flower remains.”
t0“Bell Peppers”
The same questions in other papers
climate site · quality: general · Capsicum annuum (sweet pepper)Positive and negative results
1 paper in the same direction as this paper · 1 reporting no difference from an alternative
- positive
- no effect
climate site · growth · Capsicum annuum (sweet pepper)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
1 paper more in this group
See all 5 papers →climate site · yield · Capsicum annuum (sweet pepper)Positive and negative results
6 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- no effect
5 papers more in this group
See all 9 papers →climate site · Botrytis · Capsicum annuum (sweet pepper)Results agree
1 paper in the same direction as this paper
- negative
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.