Paper · 1968 · Botanical Gazette

Effect of Various Aqueous Plant Extracts upon Seed Germination

H. Edwin Carley; R. D. Watson

4
claims
5
verbatim quotes
31
citations
2
research areas
—
Not open access

Abstract

Aqueous extracts of residues from 23 plant species inhibited the germination of clover, lettuce, radish, and wheat seeds. Extracts from potato, sugarbeet, sagebrush, green soybean, alfalfa, pea, and bean were extremely toxic to germinating seeds, while the extracts from Douglas-fir, peat moss, and sphagnum moss stimulated the growth of some germinating seeds. The degree of toxicity was dependent upon the maturity of the plant residue, the concentration of the extract, the species from which the extract was obtained, and the species of seed used in making the bioassays.

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Claims 4

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Aqueous extracts from 23 plant species inhibited germination of clover, lettuce, radish, and wheat.

Taxon
clover, lettuce, radish, and wheatRaphanus sativusTrifoliumLactuca sativaTriticum aestivume0
Treatment
Aqueous extracts of residues from 23 plant speciese0
Outcome
germinatione0
Direction
inhibitede0

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗
Trifolium
Trifolium · Taxon · picture of the genus (one of its species)AnRo0002 · CC0 · Wikimedia Commons ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗
Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Aqueous extracts of residues from 23 plant species inhibited the germination of clover, lettuce, radish, and wheat seeds.”

✓ located verbatim in the source · abstract, characters 0–121 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Extracts of potato, sugarbeet, sagebrush, green soybean, alfalfa, pea, and bean were extremely toxic to germinating seeds.

Taxon
seedse0
Treatment
Extracts from potato, sugarbeet, sagebrush, green soybean, alfalfa, pea, and beane0
Outcome
extremely toxic to germinating seedse0

Not reportedComparatorDirection

Verbatim

e0

“Extracts from potato, sugarbeet, sagebrush, green soybean, alfalfa, pea, and bean were extremely toxic to germinating seeds”

✓ located verbatim in the source · abstract, characters 122–245 · show in text ↑
t0

“Seed Germination”

✓ located verbatim in the source · title, characters 46–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Douglas-fir, peat moss, and sphagnum moss extracts stimulated growth of some germinating seeds.

Taxon
seedse0
Treatment
extracts from Douglas-fir, peat moss, and sphagnum mosse0
Outcome
growth of some germinating seedse0
Direction
stimulatede0

Not reportedComparator

Verbatim

e0

“the extracts from Douglas-fir, peat moss, and sphagnum moss stimulated the growth of some germinating seeds.”

✓ located verbatim in the source · abstract, characters 253–361 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Extract toxicity depended on residue maturity, concentration, source species and bioassay seed species.

Taxon
seede0
Treatment
concentration of the extracte0
Outcome
degree of toxicitye0

Not reportedDirection

Verbatim

e0

“The degree of toxicity was dependent upon the maturity of the plant residue, the concentration of the extract, the species from which the extract was obtained, and the species of seed used in making the bioassays.”

✓ located verbatim in the source · abstract, characters 362–575 · show in text ↑

botanical · growth · TrifoliumPositive and negative results

3 papers: 1 positive, 2 negative or no effect

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

  1. positive
  2. negative
See all 3 papers →

botanical · growth · Raphanus sativus (radish)Positive and negative results

152 papers: 53 positive, 99 negative or no effect

98 papers in the same direction as this paper · 53 in the opposite direction

  1. positive
  2. positive
  3. positive

148 papers more in this group

See all 152 papers →

botanical · growth · Lactuca sativa (garden lettuce)Positive and negative results

271 papers: 114 positive, 157 negative or no effect

156 papers in the same direction as this paper · 114 in the opposite direction

  1. positive
  2. positive
  3. positive

267 papers more in this group

See all 271 papers →

botanical · growth · Triticum aestivum (wheat)Positive and negative results

435 papers: 206 positive, 229 negative or no effect

228 papers in the same direction as this paper · 206 in the opposite direction

  1. positive
  2. positive
  3. positive

431 papers more in this group

See all 435 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.