Abstract
Fertilization of cotton ovules was prevented by removal of styles and stamens on the morning of anthesis. Forty-eight hr later ovaries were harvested and ovules were aseptically transferred to liquid culture medium supplemented with various plant growth substances. In the absence of phytohormones, ovules browned and failed to increase in size or produce fibers. Indoleacetic acid and gibberellic acid provided for ovule growth and fiber development. Kinetin provided for ovule growth only. The ovule's capacity for indoleacetic acid- or gibberellic acid-stimulation of fiber development was reduced by high concentrations of kinetin or abscisic acid. Low concentrations of kinetin partially reversed the inhibitory effect of abscisic acid.
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Claims 5
Claim · model-written summary
Cotton ovules without phytohormones browned and failed to increase in size or produce fibers.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- absence of phytohormonese0
- Outcome
- increase in size or produce fiberse0
- Direction
- failed to increasee0
- Comparator
- liquid culture medium supplemented with various plant growth substancese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Unfertilized Cotton Ovules”
e0“In the absence of phytohormones, ovules browned and failed to increase in size or produce fibers”
e1“ovules were aseptically transferred to liquid culture medium supplemented with various plant growth substances”
Claim · model-written summary
Indoleacetic acid and gibberellic acid provided for ovule growth and fiber development in cotton ovules without phytohormones.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Indoleacetic acid and gibberellic acide2
- Outcome
- ovule growth and fiber developmente2
- Comparator
- absence of phytohormonese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Unfertilized Cotton Ovules”
e0“In the absence of phytohormones, ovules browned and failed to increase in size or produce fibers”
e2“Indoleacetic acid and gibberellic acid provided for ovule growth and fiber development”
Claim · model-written summary
Kinetin provided for ovule growth in cotton ovules but not fiber development.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Kinetine3
- Outcome
- ovule growthe3
- Qualifier
- growth onlye3
- Comparator
- absence of phytohormonese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Unfertilized Cotton Ovules”
e0“In the absence of phytohormones, ovules browned and failed to increase in size or produce fibers”
e3“Kinetin provided for ovule growth only”
Claim · model-written summary
High concentrations of kinetin or abscisic acid reduced the capacity of cotton ovules for indoleacetic acid- or gibberellic acid-stimulated fiber development.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- high concentrations of kinetin or abscisic acide4
- Outcome
- capacity for indoleacetic acid- or gibberellic acid-stimulation of fiber developmente4
- Direction
- was reducede4
- Comparator
- indoleacetic acid- or gibberellic acid-stimulatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Unfertilized Cotton Ovules”
e4“The ovule's capacity for indoleacetic acid- or gibberellic acid-stimulation of fiber development was reduced by high concentrations of kinetin or abscisic acid”
Claim · model-written summary
Low concentrations of kinetin partially reversed the inhibitory effect of abscisic acid on cotton ovules.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Low concentrations of kinetine5
- Outcome
- inhibitory effect of abscisic acide5
- Direction
- partially reversede5
- Comparator
- abscisic acide5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Unfertilized Cotton Ovules”
e5“Low concentrations of kinetin partially reversed the inhibitory effect of abscisic acid”
The same questions in other papers
indole-3-acetic acid · quality: grain · Gossypium hirsutum (cotton)Results differ
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- no effect
- no effect
- positive
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See all 11 papers →Gibberellic acid · quality: grain · Gossypium hirsutum (cotton)Positive and negative results
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- no effect
- positive
- positive
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See all 14 papers →kinetin · growth · Gossypium hirsutum (cotton)Positive and negative results
14 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
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See all 17 papers →kinetin · physiology: hormones · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- positive
class · growth · Gossypium hirsutum (cotton)Positive and negative results
8 papers in the same direction as this paper · 25 in the opposite direction
- positive
- positive
- positive
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See all 34 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.