Abstract
In controlled environments, crop models that incorporate environmental factors can be developed to optimize growth and development as well as conduct cost and/or resource use benefit analyses. The overall objective of this study was to model growth and development of dill 'Bouquet' (Anethum graveolens), parsley 'Giant of Italy' (Petroselinum crispum), and watercress (Nasturtium officinale) in response to photosynthetic daily light integral (DLI) and mean daily temperature (MDT). Plants were grown hydroponically in five greenhouse compartments with MDTs ranging from 9.7 to 27.2 °C under 0%, 30%, or 50% shade cloth to create DLIs ranging from 6.2 to 16.9 mol·m‒2·d‒1. MDT and DLI interacted to influence dill fresh mass and height, and watercress maximum quantum yield of dark adapted leaves (Fv/Fm), height, and branch number while only MDT affected dill leaf number and watercress fresh mass and branch length. Besides dry matter concentration (DMC), parsley was influenced by MDT and not DLI. Increasing MDT from ≈10 to 22.4 °C (parsley) or 27.2 °C (dill and watercress), linearly or near-linearly increased fresh mass. For dill, increasing DLI decreased fresh mass when MDT was low (9.7 to 13.9 °C) and increased fresh mass when MDT was high (18.4 to 27.2 °C). DMC of dill, parsley, and watercress increased as MDT decreased or DLI increased, indicating a higher proportion of plant fresh mass is water at higher MDTs or lower DLIs. With these data we have created growth and development models for culinary herbs to aid in predicting responses to DLI and MDT.
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Claims 14
Claim · model-written summary
Mean daily temperature and daily light integral interacted in their effects on dill fresh mass and height.
- Taxon
- dill
Anethum graveolense0 - Treatment
- MDT and DLIe0
- Outcome
- fresh mass and heighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MDT and DLI interacted to influence dill fresh mass and height”
Claim · model-written summary
Mean daily temperature and daily light integral interacted in their effects on watercress Fv/Fm, height and branch number.
- Taxon
- watercress
Nasturtium officinalee0 - Treatment
- MDT and DLIe1
- Outcome
- maximum quantum yield of dark adapted leaves (Fv/Fm), height, and branch numbere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watercress maximum quantum yield of dark adapted leaves (Fv/Fm), height, and branch number”
t0“daily light integral and mean daily temperature”
t1“daily light integral and mean daily temperature”
e1“MDT and DLI interacted to influence dill fresh mass and height”
Claim · model-written summary
Only mean daily temperature affected dill leaf number.
- Taxon
- dillAnethum graveolense0
- Treatment
- MDTe0
- Outcome
- leaf numbere0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only MDT affected dill leaf number”
Claim · model-written summary
Only mean daily temperature affected watercress fresh mass and branch length.
- Taxon
- watercressNasturtium officinalee0
- Treatment
- MDTe1
- Outcome
- fresh mass and branch lengthe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watercress fresh mass and branch length”
t0“mean daily temperature”
t1“mean daily temperature”
e1“MDT and DLI interacted to influence dill fresh mass and height”
Claim · model-written summary
Apart from dry matter concentration, parsley responded to mean daily temperature but not daily light integral.
- Taxon
- parsley
Petroselinum crispume0 - Treatment
- MDTe0
- Outcome
- parsley was influencede0
- Comparator
- DLIe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Besides dry matter concentration (DMC), parsley was influenced by MDT and not DLI.”
Claim · model-written summary
Increasing mean daily temperature from about 10 to 22.4 °C increased parsley fresh mass.
- Taxon
- parsleyPetroselinum crispume0
- Treatment
- MDT from ≈10 to 22.4 °Ce0
- Outcome
- fresh masse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing MDT from ≈10 to 22.4 °C (parsley) or 27.2 °C (dill and watercress), linearly or near-linearly increased fresh mass.”
Claim · model-written summary
Increasing mean daily temperature from about 10 to 27.2 °C increased dill fresh mass.
- Taxon
- dillAnethum graveolense0
- Treatment
- MDTe0
- Outcome
- fresh masse0
- Direction
- increasede0
- Qualifier
- 27.2 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing MDT from ≈10 to 22.4 °C (parsley) or 27.2 °C (dill and watercress), linearly or near-linearly increased fresh mass.”
Claim · model-written summary
Increasing mean daily temperature from about 10 to 27.2 °C increased watercress fresh mass.
- Taxon
- watercressNasturtium officinalee0
- Treatment
- MDTe0
- Outcome
- fresh masse0
- Direction
- increasede0
- Qualifier
- 27.2 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing MDT from ≈10 to 22.4 °C (parsley) or 27.2 °C (dill and watercress), linearly or near-linearly increased fresh mass.”
Claim · model-written summary
Increasing daily light integral decreased dill fresh mass at low mean daily temperature.
- Taxon
- dillAnethum graveolense0
- Treatment
- increasing DLIe0
- Outcome
- fresh masse0
- Direction
- decreasede0
- Qualifier
- MDT was low (9.7 to 13.9 °C)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For dill, increasing DLI decreased fresh mass when MDT was low (9.7 to 13.9 °C)”
Claim · model-written summary
Increasing daily light integral increased dill fresh mass at high mean daily temperature.
- Taxon
- dillAnethum graveolenst0
- Treatment
- daily light integralt0
- Outcome
- fresh masse0
- Direction
- increasede0
- Qualifier
- MDT was high (18.4 to 27.2 °C)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased fresh mass when MDT was high (18.4 to 27.2 °C)”
t0“dill, parsley, and watercress in response to photosynthetic daily light integral”
t1“dill, parsley, and watercress in response to photosynthetic daily light integral”
Claim · model-written summary
Dill dry matter concentration increased as mean daily temperature decreased or daily light integral increased.
- Taxon
- dillAnethum graveolense0
- Treatment
- MDT decreased or DLI increasede0
- Outcome
- DMCe0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DMC of dill, parsley, and watercress increased as MDT decreased or DLI increased”
Claim · model-written summary
Parsley dry matter concentration increased as mean daily temperature decreased or daily light integral increased.
- Taxon
- parsleyPetroselinum crispume0
- Treatment
- MDT decreased or DLI increasede0
- Outcome
- DMCe0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DMC of dill, parsley, and watercress increased as MDT decreased or DLI increased”
Claim · model-written summary
Watercress dry matter concentration increased as mean daily temperature decreased or daily light integral increased.
- Taxon
- watercressNasturtium officinalee0
- Treatment
- MDT decreased or DLI increasede0
- Outcome
- DMCe0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DMC of dill, parsley, and watercress increased as MDT decreased or DLI increased”
Claim · model-written summary
The study created growth and development models for culinary herbs to predict responses to light and temperature.
Verbatim
e0“With these data we have created growth and development models for culinary herbs to aid in predicting responses to DLI and MDT.”
The same questions in other papers
light · growth · Anethum graveolens (dill)Positive and negative results
4 papers in the same direction as this paper · 4 in the opposite direction
- positive
- no effect
- no effect
5 papers more in this group
See all 9 papers →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.