Abstract
The objectives of this study were to assess the capability of laser-induced fluorescence (LIF) to discrimi-nate between nitrogen and sulfur deficiencies in corn that result in similar effects on leaf colour, and to de-termine the relationship between changes in LIF emission spectra and plant growth inhibition. Corn plants were grown in the greenhouse and fertilised for 35 days with nutrient solutions of different nitrogen (N) and sulfur (S) concentrations. Every 6 to 8 days during the experiment, fluorescence data were remotely ob-tained using an FLS-PL compact multiwavelength fluorescence lidar developed by our group. Excitation wavelengths varied from the UV to the VIS spectral range over the measurement cycle. The corresponding fluorescence spectra were recorded at each laser pulse with a CCD-based multi-channel detector. On the same day as the fluorescence measurements were made, the leaf reflectance was measured and leaf sam-ples were collected for the N, S and chlorophyll {a+b} (Chl{a+b}) content analyses. N deficiency caused a significant decrease in the accumulation of plant biomass and the Chl{a+b} leaf contents after 6 days of treatments, whereas S deficiency led to significant decreases in Chl{a+b} leaf contents and the accumulation of plant biomass after 6 and 18 days of treatments, respectively. The losses of Chl{a+b} in N- and S-deficient plants were similarly correlated to the changes in the R740/R540 re-
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 5
Claim · model-written summary
Nitrogen deficiency significantly reduced corn biomass after six days.
- Taxon
- CORN
Zea mays subsp. mayst0 - Treatment
- N deficiencye0
- Outcome
- accumulation of plant biomasse0
- Direction
- decreasee0
- Qualifier
- after 6 days of treatmentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N deficiency caused a significant decrease in the accumulation of plant biomass and the Chl{a+b} leaf contents after 6 days of treatments”
t0“CORN PLANTS”
Claim · model-written summary
Nitrogen deficiency significantly reduced leaf chlorophyll content after six days.
- Taxon
- CORNZea mays subsp. mayst0
- Treatment
- N deficiencye0
- Outcome
- Chl{a+b} leaf contentse0
- Direction
- decreasee0
- Qualifier
- after 6 days of treatmentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N deficiency caused a significant decrease in the accumulation of plant biomass and the Chl{a+b} leaf contents after 6 days of treatments”
t0“CORN PLANTS”
Claim · model-written summary
Sulfur deficiency significantly reduced leaf chlorophyll content after six days.
- Taxon
- CORNZea mays subsp. mayst0
- Treatment
- S deficiencye0
- Outcome
- Chl{a+b} leaf contentse0
- Direction
- decreasese0
- Qualifier
- after 6 and 18 days of treatments, respectivelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S deficiency led to significant decreases in Chl{a+b} leaf contents and the accumulation of plant biomass after 6 and 18 days of treatments, respectively”
t0“CORN PLANTS”
Claim · model-written summary
Sulfur deficiency significantly reduced corn biomass after 18 days.
- Taxon
- CORNZea mays subsp. mayst0
- Treatment
- S deficiencye0
- Outcome
- accumulation of plant biomasse0
- Direction
- decreasese0
- Qualifier
- after 6 and 18 days of treatments, respectivelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S deficiency led to significant decreases in Chl{a+b} leaf contents and the accumulation of plant biomass after 6 and 18 days of treatments, respectively”
t0“CORN PLANTS”
Claim · model-written summary
Chlorophyll losses under nitrogen and sulfur deficiency were similarly correlated with changes in R740/R540; the supplied sentence ends before identifying the full metric.
- Taxon
- CORNZea mays subsp. mayst0
- Treatment
- N- and S-deficiente0
- Outcome
- losses of Chl{a+b}e0
- Qualifier
- similarly correlatede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The losses of Chl{a+b} in N- and S-deficient plants were similarly correlated to the changes in the R740/R540 re-”
t0“CORN PLANTS”
The same questions in other papers
sulfur atom · growth · Zea mays (maize)Results differ
25 papers in the same direction as this paper · 4 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- no effect
- negative
- no effect
26 papers more in this group
See all 30 papers →nitrogen · growth · Zea mays (maize)Positive and negative results
618 papers in the same direction as this paper · 115 in the opposite direction · 14 reporting no difference from an alternative
This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- no effect
- negative
744 papers more in this group
See all 748 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.