Abstract
The cotton plant is a species of the Malvaceae family and is relevant to the Brazilian and world economy, mainly because of the textile fiber. However, there was an increase in cotton production because it is necessary for the use of inputs or stimulants, such as the use of gibberellic acid, which has contributed in improving the physiological processes of plants. The study aimed to evaluate the effects of gibberellic acid doses and foliar application on the physiological aspects of different cotton cultivars. The experiment was conducted under field conditions in 5 × 3 factorial scheme, corresponding to five doses of gibberellic acid (0, 0.01, 0.02, 0.04 and 0.06 mg L-1) and three cultivars upland cotton (BRS 8H, BRS Rubi and BRS Safira) in the design of randomized blocks, three replications and 25 plants per plot. The photosynthetic pigments, which are represented by the contents of chlorophyll a and b, total, carotenoid and relative water content in the sheet were determined. In BRS 8H the chlorophyll levels were high, 287.914 µmol m-2 to 468.796 µmol m-2 being the treatments without and sprayed with 0.06 mg L-1 GA3, with 62.82% increase. The application of 0.06 mg L-1 GA3 generally promotes increased levels of photosynthetic pigments and relative water content in cotton leaves. The cotton BRS 8H was the culture that best meets the application of gibberellic acid. Key words: Genetic material, Gossypium hirsutum L., photosynthetic pigments phytohormone.
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Claims 4
Claim · model-written summary
BRS 8H chlorophyll rose 62.82% with 0.06 mg L-1 GA3.
- Taxon
- cotton
Gossypium hirsutumt0 - Material
- BRS 8He0
- Treatment
- sprayed with 0.06 mg L-1 GA3e0
- Outcome
- chlorophyll levelse0
- Direction
- increasee0
- Value
- 62.82%e0
- Comparator
- withoute0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In BRS 8H the chlorophyll levels were high, 287.914 µmol m-2 to 468.796 µmol m-2 being the treatments without and sprayed with 0.06 mg L-1 GA3, with 62.82% increase”
t0“cotton cultivars”
Claim · model-written summary
GA3 generally increased photosynthetic pigments in cotton leaves.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- 0.06 mg L-1 GA3e0
- Outcome
- photosynthetic pigmentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 0.06 mg L-1 GA3 generally promotes increased levels of photosynthetic pigments and relative water content in cotton leaves”
Claim · model-written summary
GA3 generally increased relative water content in cotton leaves.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- 0.06 mg L-1 GA3e0
- Outcome
- relative water contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 0.06 mg L-1 GA3 generally promotes increased levels of photosynthetic pigments and relative water content in cotton leaves”
Claim · model-written summary
BRS 8H responded best to GA3.
- Taxon
- cottonGossypium hirsutume0
- Material
- BRS 8He0
- Outcome
- best meets the application of gibberellic acide0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cotton BRS 8H was the culture that best meets the application of gibberellic acid”
The same questions in other papers
Gibberellic acid · physiology: pigments · Gossypium hirsutum (cotton)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
application · physiology: pigments · Gossypium hirsutum (cotton)Results agree
32 papers in the same direction as this paper
- positive
- positive
- positive
29 papers more in this group
See all 33 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.