Abstract
It is well known that the survival rate of cotton seedlings is low, and the growth and development status at this stage is crucial to improve productivity. Plant hormones are important factors that promote the growth and development of cotton seedlings. Growth regulators have the same function as plant hormones. The purpose of this research is to explore the effects of different concentrations of growth regulators on cotton root morphological parameters and enzyme activities, and to find suitable plant growth regulators and their optimal concentrations to improve the growth of the cotton seedling root system. Three cotton varieties, “Zhongmian 619” (Z619), “Xinluzao 27” (Z27), and “Xinluzao 39” (Z39), and three growth regulators, gibberellin (GA3), salicylic acid (SA), and paclobutrazol (PP333), at three concentrations were used in our experiment. In Z619 and Z27, 0.050 mg/L GA3 significantly increased the total root length. Similarly, 0.010 mmol/L SA significantly increased the root growth parameters of Z619 and Z39. In Z619, 0.1 mg/L PP333 significantly increased the total root length and total surface area and reduced the average root diameter. For all three cotton varieties, 0.050 mg/L GA3 increased peroxidase (POD) activity in the roots. In Z27 and Z39, 0.80 mg/L GA3 increased superoxide dismutase (SOD) activity in the roots. All SA concentrations increased SOD activity in roots of Z619 and Z27; 0.10 mg/L PP333 significantly increased SOD and POD activities in the roots of Z619 and significantly increased SOD activity in Z27. Principal component analysis indicated that 0.10 mmol/L SA was the optimal treatment for promoting the development of the roots of Z619 and 0.050 mmol/L SA was the optimal treatment for promoting the development of the roots of Z27 and Z39.
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Claims 11
Claim · model-written summary
GA3 at 0.050 mg/L significantly increased total root length in cotton varieties Z619 and Z27.
- Taxon
- Cotton
Gossypium hirsutumt0 - Material
- Z619 and Z27e1
- Treatment
- 0.050 mg/L GA3e1
- Outcome
- total root lengthe1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Seedling Root Growth Parameters”
e1“In Z619 and Z27, 0.050 mg/L GA3 significantly increased the total root length”
Claim · model-written summary
SA at 0.010 mmol/L significantly increased root growth parameters of cotton varieties Z619 and Z39.
- Taxon
- CottonGossypium hirsutumt0
- Material
- Z619 and Z39e2
- Treatment
- 0.010 mmol/L SAe2
- Outcome
- root growth parameterse2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Seedling Root Growth Parameters”
e2“Similarly, 0.010 mmol/L SA significantly increased the root growth parameters of Z619 and Z39”
Claim · model-written summary
PP333 at 0.1 mg/L significantly increased total root length and total surface area in cotton variety Z619.
- Taxon
- CottonGossypium hirsutumt0
- Material
- Z619e3
- Treatment
- 0.1 mg/L PP333e3
- Outcome
- total root length and total surface areae3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Seedling Root Growth Parameters”
e3“In Z619, 0.1 mg/L PP333 significantly increased the total root length and total surface area and reduced the average root diameter”
Claim · model-written summary
PP333 at 0.1 mg/L reduced average root diameter in cotton variety Z619.
- Taxon
- CottonGossypium hirsutumt0
- Material
- Z619e3
- Treatment
- 0.1 mg/L PP333e3
- Outcome
- average root diametere3
- Direction
- reducede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Seedling Root Growth Parameters”
e3“In Z619, 0.1 mg/L PP333 significantly increased the total root length and total surface area and reduced the average root diameter”
Claim · model-written summary
GA3 at 0.050 mg/L increased peroxidase activity in the roots of all three cotton varieties.
- Taxon
- CottonGossypium hirsutumt0
- Organ / stage
- rootse5
- Treatment
- 0.050 mg/L GA3e5
- Outcome
- peroxidase (POD) activitye5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Seedling Root Growth Parameters”
e5“For all three cotton varieties, 0.050 mg/L GA3 increased peroxidase (POD) activity in the roots”
Claim · model-written summary
GA3 at 0.80 mg/L increased superoxide dismutase activity in the roots of cotton varieties Z27 and Z39.
- Taxon
- CottonGossypium hirsutumt0
- Material
- Z27 and Z39e6
- Organ / stage
- rootse6
- Treatment
- 0.80 mg/L GA3e6
- Outcome
- superoxide dismutase (SOD) activitye6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Seedling Root Growth Parameters”
e6“In Z27 and Z39, 0.80 mg/L GA3 increased superoxide dismutase (SOD) activity in the roots”
Claim · model-written summary
All tested SA concentrations increased superoxide dismutase activity in the roots of cotton varieties Z619 and Z27.
- Taxon
- CottonGossypium hirsutumt0
- Material
- Z619 and Z27e7
- Organ / stage
- rootse7
- Treatment
- SA concentrationse7
- Outcome
- SOD activitye7
- Direction
- increasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Seedling Root Growth Parameters”
e7“All SA concentrations increased SOD activity in roots of Z619 and Z27”
Claim · model-written summary
PP333 at 0.10 mg/L significantly increased superoxide dismutase and peroxidase activities in the roots of cotton variety Z619.
- Taxon
- CottonGossypium hirsutumt0
- Material
- Z619e1
- Organ / stage
- rootse1
- Treatment
- 0.10 mg/L PP333e1
- Outcome
- SOD and POD activitiese1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Seedling Root Growth Parameters”
e1“0.10 mg/L PP333 significantly increased SOD and POD activities in the roots of Z619”
Claim · model-written summary
PP333 at 0.10 mg/L significantly increased superoxide dismutase activity in cotton variety Z27.
- Taxon
- CottonGossypium hirsutumt0
- Material
- Z27e2
- Treatment
- 0.10 mg/L PP333e2
- Outcome
- SOD activitye2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Seedling Root Growth Parameters”
e2“0.10 mg/L PP333 significantly increased SOD and POD activities in the roots of Z619 and significantly increased SOD activity in Z27”
Claim · model-written summary
Principal component analysis indicated that 0.10 mmol/L SA was the optimal treatment for promoting root development in cotton variety Z619.
- Taxon
- CottonGossypium hirsutumt0
- Material
- Z619e3
- Organ / stage
- rootse3
- Treatment
- 0.10 mmol/L SAe3
- Outcome
- developmente3
- Direction
- promotinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Seedling Root Growth Parameters”
e3“Principal component analysis indicated that 0.10 mmol/L SA was the optimal treatment for promoting the development of the roots of Z619”
Claim · model-written summary
Principal component analysis indicated that 0.050 mmol/L SA was the optimal treatment for promoting root development in cotton varieties Z27 and Z39.
- Taxon
- CottonGossypium hirsutumt0
- Material
- Z27 and Z39e4
- Organ / stage
- rootse4
- Treatment
- 0.050 mmol/L SAe4
- Outcome
- developmente4
- Direction
- promotinge4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Seedling Root Growth Parameters”
e4“0.050 mmol/L SA was the optimal treatment for promoting the development of the roots of Z27 and Z39”
The same questions in other papers
salicylic acid · growth · Gossypium hirsutum (cotton)Positive and negative results
9 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
7 papers more in this group
See all 11 papers →paclobutrazol · growth · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- positive
salicylic acid · physiology: antioxidant enzymes · Gossypium hirsutum (cotton)Results agree
7 papers in the same direction as this paper
- positive
- positive
- positive
4 papers more in this group
See all 8 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.