Abstract
S ummary Dimorphic fruits of Bidens pilosa were tested separately for differences in germinability and seedling development. The long achenes were found to germinate readily under a wide range of conditions while the short achenes showed fairly exacting germination requirements. Germination of the short achenes was found to be enhanced by red light treatment, scarification, applied hormones, leaching and increased oxygen tensions. Seedlings originating from short achenes showed lower survival rates and initially slower development than those originating from the long achenes. The implications of the morphological differences and differences in germination and development of the two achenes are discussed.
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Claims 8
Claim · model-written summary
Long Bidens pilosa achenes germinated readily over a wide range of conditions, while short achenes had more exacting requirements.
Verbatim
e0“The long achenes were found to germinate readily under a wide range of conditions while the short achenes showed fairly exacting germination requirements”
t0“BIDENS PILOSA L.”
Claim · model-written summary
Red light enhanced germination of short achenes.
- Taxon
- BIDENS PILOSA L.t0
- Treatment
- red light treatmente0
- Outcome
- Germination of the short achenese0
- Direction
- enhancede0
Not reportedComparator
Verbatim
e0“Germination of the short achenes was found to be enhanced by red light treatment, scarification, applied hormones, leaching and increased oxygen tensions”
t0“BIDENS PILOSA L.”
Claim · model-written summary
Scarification enhanced germination of short achenes.
- Taxon
- BIDENS PILOSA L.t0
- Treatment
- scarificatione0
- Outcome
- Germination of the short achenese0
- Direction
- enhancede0
Not reportedComparator
Verbatim
e0“Germination of the short achenes was found to be enhanced by red light treatment, scarification, applied hormones, leaching and increased oxygen tensions”
t0“BIDENS PILOSA L.”
Claim · model-written summary
Applied hormones enhanced germination of short achenes.
- Taxon
- BIDENS PILOSA L.t0
- Treatment
- applied hormonese0
- Outcome
- Germination of the short achenese0
- Direction
- enhancede0
Not reportedComparator
Verbatim
e0“Germination of the short achenes was found to be enhanced by red light treatment, scarification, applied hormones, leaching and increased oxygen tensions”
t0“BIDENS PILOSA L.”
Claim · model-written summary
Leaching enhanced germination of short achenes.
- Taxon
- BIDENS PILOSA L.t0
- Treatment
- leachinge0
- Outcome
- Germination of the short achenese0
- Direction
- enhancede0
Not reportedComparator
Verbatim
e0“Germination of the short achenes was found to be enhanced by red light treatment, scarification, applied hormones, leaching and increased oxygen tensions”
t0“BIDENS PILOSA L.”
Claim · model-written summary
Increased oxygen tension enhanced germination of short achenes.
- Taxon
- BIDENS PILOSA L.t0
- Treatment
- increased oxygen tensionse0
- Outcome
- Germination of the short achenese0
- Direction
- enhancede0
Not reportedComparator
Verbatim
e0“Germination of the short achenes was found to be enhanced by red light treatment, scarification, applied hormones, leaching and increased oxygen tensions”
t0“BIDENS PILOSA L.”
Claim · model-written summary
Seedlings from short achenes had lower survival than seedlings from long achenes.
Verbatim
e0“Seedlings originating from short achenes showed lower survival rates and initially slower development than those originating from the long achenes”
t0“BIDENS PILOSA L.”
Claim · model-written summary
Seedlings from short achenes initially developed more slowly than seedlings from long achenes.
Verbatim
e0“Seedlings originating from short achenes showed lower survival rates and initially slower development than those originating from the long achenes”
t0“BIDENS PILOSA L.”
The same questions in other papers
light · growth · Bidens pilosa (bur-marigold)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- positive
2 papers more in this group
See all 6 papers →seed treatment · growth · Bidens pilosa (bur-marigold)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.