Abstract
Far-red (FR) additions to white or red/blue light resulted in improved dry biomass and fruit nutritional quality. Despite these positive effects, FR supplementation was also found to induce the abortion of flowers and fruits. We hypothesized that the timing and duration of the FR supplements determine the positive or negative effects of the FR supplement on the plant. To examine this hypothesis, we compared the effect of a gradient of FR supplements (5.5, 12, and 18.1 μmol m−2 s−1) on bell pepper plants (Capsicum annuum cv. Margrethe) when they were exposed to the FR supplements at the beginning of their vegetative growth phase to when FR supplementation only began at the generative phase. We found that 12 and 18.1 μmol m−2 s−1 of FR supplements resulted in a higher yield than 5.5 μmol m−2 s−1 of FR supplements, but FR supplementation from the onset of flowering delayed fruit ripening by 5–8 days and decreased fruit yield compared to FR supplementation that began at seedling transplantation. These results indicate that the positive effect of the FR supplements on the pepper plants of the cultivar Margrethe depends on the plant’s stages of development, and a much lower FR intensity may suffice to enhance growth and yield.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 7
Claim · model-written summary
Far-red additions to white or red/blue light improved dry biomass and fruit nutritional quality of bell pepper.
Verbatim
e1“Far-red (FR) additions to white or red/blue light resulted in improved dry biomass and fruit nutritional quality”
t0“Developmental Stages of Bell Pepper”
Claim · model-written summary
Far-red supplementation induced abortion of flowers and fruits in bell pepper.
- Taxon
- Bell Peppert0
- Treatment
- FR supplementatione2
- Outcome
- abortion of flowers and fruitse2
- Direction
- inducee2
Not reportedComparator
Verbatim
e2“FR supplementation was also found to induce the abortion of flowers and fruits”
t0“Developmental Stages of Bell Pepper”
Claim · model-written summary
Far-red supplement at 12 and 18.1 μmol m−2 s−1 gave a higher bell pepper yield than 5.5 μmol m−2 s−1.
Verbatim
e3“12 and 18.1 μmol m−2 s−1 of FR supplements resulted in a higher yield than 5.5 μmol m−2 s−1 of FR supplements”
t0“Developmental Stages of Bell Pepper”
Claim · model-written summary
Far-red supplementation from the onset of flowering delayed fruit ripening by 5-8 days compared with supplementation from seedling transplantation.
Verbatim
e4“FR supplementation from the onset of flowering delayed fruit ripening by 5–8 days and decreased fruit yield compared to FR supplementation that began at seedling transplantation”
t0“Developmental Stages of Bell Pepper”
Claim · model-written summary
Far-red supplementation from the onset of flowering decreased bell pepper fruit yield compared with supplementation from seedling transplantation.
Verbatim
e4“FR supplementation from the onset of flowering delayed fruit ripening by 5–8 days and decreased fruit yield compared to FR supplementation that began at seedling transplantation”
t0“Developmental Stages of Bell Pepper”
Claim · model-written summary
The positive effect of far-red supplements on the Margrethe pepper plants depends on developmental stage.
- Taxon
- Capsicum annuum
Capsicum annuume6 - Material
- Margrethee5
- Organ / stage
- stages of developmente5
- Treatment
- FR supplementse5
- Outcome
- positive effect of the FR supplementse5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“the positive effect of the FR supplements on the pepper plants of the cultivar Margrethe depends on the plant’s stages of development”
e6“bell pepper plants (Capsicum annuum cv. Margrethe)”
Claim · model-written summary
A much lower far-red intensity may suffice to enhance bell pepper growth and yield.
- Taxon
- Capsicum annuumCapsicum annuume6
- Outcome
- enhance growth and yielde7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“bell pepper plants (Capsicum annuum cv. Margrethe)”
e7“a much lower FR intensity may suffice to enhance growth and yield”
The same questions in other papers
light · yield · Capsicum annuum (sweet pepper)Results differ
14 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- negative
18 papers more in this group
See all 22 papers →light · phenology · Capsicum annuum (sweet pepper)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
1 paper more in this group
See all 5 papers →light · quality: postharvest · Capsicum annuum (sweet pepper)Positive and negative results
2 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →stage · quality: postharvest · Capsicum annuum (sweet pepper)Results agree
1 paper in the same direction as this paper
- negative
light · quality: grain · Capsicum annuum (sweet pepper)Results agree
1 paper in the same direction as this paper
- positive
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.