Paper · 1992 · Journal of Herbs Spices & Medicinal Plants

Light Levels, Growth, and Essential Oil in Dill (Anethum graveolensL.)

S. Hälvä; L. E. Craker; J. E. Simon; et al.

Read at the source ↗doi:10.1300/j044v01n01_06 ↗OpenAlex W2019547816 ↗In the paper network →

2
claims
3
verbatim quotes
29
citations
1
research areas
—
Not open access

Abstract

The effect of light level on growth and development of dill herb was studied in a greenhouse under full sunlight and under 70, 50, and 30 percent of full sunlight. Decreasing light levels resulted in decreases in leaf number, leaf area, and plant height. Dill growth and essential oil accumulation increased with increases in the light level and was greatest under full sunlight.

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 2

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Decreasing light levels decreased leaf number, leaf area and plant height of dill.

Taxon
dill herbe0
Treatment
70, 50, and 30 percent of full sunlighte0
Outcome
leaf number, leaf area, and plant heighte1
Direction
decreasese1
Comparator
full sunlighte0
Setting
greenhousee0

Verbatim

e0

“effect of light level on growth and development of dill herb was studied in a greenhouse under full sunlight and under 70, 50, and 30 percent of full sunlight”

✓ located verbatim in the source · abstract, characters 4–162 · show in text ↑
e1

“Decreasing light levels resulted in decreases in leaf number, leaf area, and plant height”

✓ located verbatim in the source · abstract, characters 164–253 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dill growth and essential oil accumulation increased with higher light level and was greatest under full sunlight.

Treatment
light levele2
Outcome
growth and essential oil accumulatione2
Direction
increasede2
Comparator
full sunlighte2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Anethum graveolens
Anethum graveolens · TaxonTepeyac · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e2

“Dill growth and essential oil accumulation increased with increases in the light level and was greatest under full sunlight”

✓ located verbatim in the source · abstract, characters 255–378 · show in text ↑

light · growth · Anethum graveolens (dill)Positive and negative results

9 papers: 5 positive, 4 negative or no effect

4 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
    High DLI increased fresh mass of dill by 17.1 g (241%) relative to low DLI

    Nutrient Solution Strength Does Not Interact with the Daily Light Integral to Affect Hydroponic Cilantro, Dill, and Parsley Growth and Tissue Mineral Nutrient Concentrations · 2019 · compared with low DLI

    Same directionCites this paper

  2. positive
    Red and far-red night-break light nonsignificantly increased fresh and dry weight, height, petiole length, leaf number, and leaf area in the three species.

    Light effects on growth and essential oil quantity and constituents in some Apiaceae plants · 2019

    Same directionCites this paper

  3. no effect
    Dill height was unaffected by supplemental light source.

    Effects of Supplemental Light Source on Basil, Dill, and Parsley Growth, Morphology, Aroma, and Flavor · 2019 · compared with HPS lamps

    Opposite direction

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.