Paper · 1994 · Journal of Plant Nutrition

Influence of soil humic substances and herbicides on the growth of pea(Pisum sativumL.) in nutrient solution1

N. Senesi; E. Loffredo

4
claims
5
verbatim quotes
13
citations
1
research areas
—
Not open access

Abstract

Abstract No morphological and length modifications of the root and shoot systems are apparent in pea (Pisum sativum L.) plants of three varieties grown in the presence of 100 mg/L humic acid or fulvic acid or 20 mg/L linuron [3‐(3,4‐dichlorophenyl)‐l‐methoxy‐l‐methylurea] or ametryne [2‐ethylamino‐4‐iso‐propylamino‐6‐methylthio‐1,3,5‐triazine]. A combination of humic substance and herbicide at these concentrations produces in all pea varieties a differentiated and marked reduction in root length and large morphological alterations of roots. Statistical analysis of data show that differentiated and highly significant or significant effects are produced on the shoot and root dry weight by either the humic substance or herbicide alone, and by any combination of two or three factors considered (variety, humic substance, herbicide).

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Claims 4

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Individual humic acids, fulvic acids, linuron, and ametryne caused no apparent root or shoot morphology or length changes in three pea varieties.

Material
three varietiese0
Treatment
humic acid or fulvic acid or 20 mg/L linurone0
Outcome
morphological and length modifications of the root and shoot systemse0
Direction
Noe0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“No morphological and length modifications of the root and shoot systems are apparent in pea (Pisum sativum L.) plants of three varieties grown in the presence of 100 mg/L humic acid or fulvic acid or 20 mg/L linuron [3‐(3,4‐dichlorophenyl)‐l‐methoxy‐l‐methylurea] or ametryne [2‐ethylamino‐4‐iso‐propylamino‐6‐methylthio‐1,3,5‐triazine].”

✓ located verbatim in the source · abstract, characters 9–346 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Combining humic substance and herbicide reduced pea root length in all varieties.

Material
all pea varietiese0
Treatment
A combination of humic substance and herbicidee0
Outcome
root lengthe0
Direction
reductione0

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“A combination of humic substance and herbicide at these concentrations produces in all pea varieties a differentiated and marked reduction in root length and large morphological alterations of roots.”

✓ located verbatim in the source · abstract, characters 347–546 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Combining humic substance and herbicide produced large morphological alterations of pea roots.

Treatment
A combination of humic substance and herbicidee0
Outcome
large morphological alterations of rootse0

Not reportedComparatorDirection

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“A combination of humic substance and herbicide at these concentrations produces in all pea varieties a differentiated and marked reduction in root length and large morphological alterations of roots.”

✓ located verbatim in the source · abstract, characters 347–546 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Humic substances, herbicides, and their interactions with variety significantly affected pea shoot and root dry weight.

Treatment
humic substance or herbicidee0
Outcome
shoot and root dry weighte0

Not reportedComparatorDirection

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Statistical analysis of data show that differentiated and highly significant or significant effects are produced on the shoot and root dry weight by either the humic substance or herbicide alone, and by any combination of two or three factors considered (variety, humic substance, herbicide).”

✓ located verbatim in the source · abstract, characters 547–839 · show in text ↑
t0

“pea(Pisum sativumL.)”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑

herbicide · growth · Lathyrus oleraceus (pea)Positive and negative results

16 papers: 8 positive, 8 negative or no effect

7 papers in the same direction as this paper · 8 in the opposite direction

  1. positive
  2. positive
  3. positive

12 papers more in this group

See all 16 papers →

other · growth · Lathyrus oleraceus (pea)Positive and negative results

20 papers: 18 positive, 2 negative or no effect

1 paper in the same direction as this paper · 18 in the opposite direction

  1. positive
  2. positive
  3. positive

16 papers more in this group

See all 20 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.