Abstract
Hybrids of Sorghum sudanensis (sudangrass) and Sorghum bicolor genotypes can produce high amounts of biomass, sorgoleone (a long chain hydroquinone), and other phytotoxic substances. Shoots and roots of a sorghum-sudangrass hybrid (cv. Trudan 8) were collected 10, 20, 30, 40, and 50 days after emergence. Four concentrations of aqueous extracts from the shoots and roots (0, 0.4, 2, and 10 g L-1, w/v) were used to treat seeds of lettuce (Lactuca sativa), tomato (Lycopersicum sculentum), purslane (Portulaca oleracea), and pigweed (Amaranthus retroflexus). Seed germination of lettuce, tomato, and pigweed was inhibited by extracts from sorghum-sudangrass shoots at 10 g L-1 when made from sorghum-sudangrass plants 20 days or less in age. Seed germination of purslane was not inhibited by any sorghum-sudangrass extract. Growth of the four species evaluated were systematically inhibited when treated with 10 g L-1 extracts from sorghum-sudangrass shoots harvested up to 10 days after emergence.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 8
Claim · model-written summary
Shoot extracts inhibited lettuce germination.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- extracts from sorghum-sudangrass shoots at 10 g L-1e0
- Interactor
- sorghum-sudangrasse0other
- Outcome
- Seed germinatione0
- Direction
- inhibitede0
- Qualifier
- 20 days or less in agee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed germination of lettuce, tomato, and pigweed was inhibited by extracts from sorghum-sudangrass shoots at 10 g L-1 when made from sorghum-sudangrass plants 20 days or less in age”
Claim · model-written summary
Shoot extracts inhibited tomato germination.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- extracts from sorghum-sudangrass shoots at 10 g L-1e0
- Interactor
- sorghum-sudangrasse0other
- Outcome
- Seed germinatione0
- Direction
- inhibitede0
- Qualifier
- 20 days or less in agee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed germination of lettuce, tomato, and pigweed was inhibited by extracts from sorghum-sudangrass shoots at 10 g L-1 when made from sorghum-sudangrass plants 20 days or less in age”
Claim · model-written summary
Shoot extracts inhibited pigweed germination.
- Taxon
- pigweede0
- Treatment
- extracts from sorghum-sudangrass shoots at 10 g L-1e0
- Interactor
- sorghum-sudangrasse0other
- Outcome
- Seed germinatione0
- Direction
- inhibitede0
- Qualifier
- 20 days or less in agee0
Not reportedComparator
Verbatim
e0“Seed germination of lettuce, tomato, and pigweed was inhibited by extracts from sorghum-sudangrass shoots at 10 g L-1 when made from sorghum-sudangrass plants 20 days or less in age”
Claim · model-written summary
No sorghum-sudangrass extract inhibited purslane germination.
- Taxon
- purslanee0
- Treatment
- sorghum-sudangrass extracte0
- Interactor
- sorghum-sudangrasse0other
- Outcome
- Seed germinatione0
- Direction
- not inhibitede0
Not reportedComparator
Verbatim
e0“Seed germination of purslane was not inhibited by any sorghum-sudangrass extract”
Claim · model-written summary
Shoot extracts inhibited lettuce growth.
- Treatment
- 10 g L-1 extracts from sorghum-sudangrass shootse0
- Interactor
- sorghum-sudangrasse0other
- Outcome
- Growthe0
- Direction
- inhibitede0
- Qualifier
- up to 10 days after emergencee0
Not reportedTaxonComparator
Verbatim
e0“Growth of the four species evaluated were systematically inhibited when treated with 10 g L-1 extracts from sorghum-sudangrass shoots harvested up to 10 days after emergence”
Claim · model-written summary
Shoot extracts inhibited tomato growth.
- Treatment
- 10 g L-1 extracts from sorghum-sudangrass shootse0
- Interactor
- sorghum-sudangrasse0other
- Outcome
- Growthe0
- Direction
- inhibitede0
- Qualifier
- up to 10 days after emergencee0
Not reportedTaxonComparator
Verbatim
e0“Growth of the four species evaluated were systematically inhibited when treated with 10 g L-1 extracts from sorghum-sudangrass shoots harvested up to 10 days after emergence”
Claim · model-written summary
Shoot extracts inhibited purslane growth.
- Treatment
- 10 g L-1 extracts from sorghum-sudangrass shootse0
- Interactor
- sorghum-sudangrasse0other
- Outcome
- Growthe0
- Direction
- inhibitede0
- Qualifier
- up to 10 days after emergencee0
Not reportedTaxonComparator
Verbatim
e0“Growth of the four species evaluated were systematically inhibited when treated with 10 g L-1 extracts from sorghum-sudangrass shoots harvested up to 10 days after emergence”
Claim · model-written summary
Shoot extracts inhibited pigweed growth.
- Treatment
- 10 g L-1 extracts from sorghum-sudangrass shootse0
- Interactor
- sorghum-sudangrasse0other
- Outcome
- Growthe0
- Direction
- inhibitede0
- Qualifier
- up to 10 days after emergencee0
Not reportedTaxonComparator
Verbatim
e0“Growth of the four species evaluated were systematically inhibited when treated with 10 g L-1 extracts from sorghum-sudangrass shoots harvested up to 10 days after emergence”
The same questions in other papers
botanical · growth · Lactuca sativa (garden lettuce)Positive and negative results
156 papers in the same direction as this paper · 114 in the opposite direction
- negative
- positive
- positive
267 papers more in this group
See all 271 papers →botanical · growth · Solanum lycopersicum (tomato)Positive and negative results
87 papers in the same direction as this paper · 203 in the opposite direction
- positive
- positive
- positive
287 papers more in this group
See all 291 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.