Abstract
Abstract To determine the effects of variations in plants per hill, spacing arrangements, and plant populations on agronomic and fiber properties of cotton ( Gossypium hirsutum L.) we conducted a 2‐year study at Experiment, Ga., using ‘Atlas’ cotton on Cecil scl. Each trial was a randomized block split‐plot with number of plants (2, 3, 4, or 5 per hill) as the main plots and within‐row spacings (20, 40, and 60 cm) as subplots. The variations in plants/ hill and spacings represent a range in population of 32,110 to 240,825 plants/hectare. Significant differences in yield due to years and to within‐row spacings were found, but number of plants per hill did not affect yield. The plants in hills spaced 20 and 40 cm apart produced higher yields than the plants spaced 60 cm. A population range of 96,330 to 144,495 plants/ha produced best yields. We found differences in lint percentage and boll size due to years, plants/hill, and within‐row spacings. Lint percentage was highest and bolls were largest from plants at the 60‐cm spacing and when there were 2 plants/hill. The only significant difference in seed size was that associated with years. Fiber length differences were due to years, plants/hill, and within‐row spacings; the longest fibers were produced by 3 plants/hill and by plants at 40‐cm spacing. Differences in fiber strength were due to years and within‐row spacings; the strongest fibers were produced by plants spaced 60 cm apart. Fiber fineness was influenced by years only. The following interactions were found: Years × plants/hill: boll size, fiber length, fiber fineness, yield, lint percentage, and seed size. Years × spacings: lint percentage, boll size, and fiber fineness. Plants/hill × spacings: lint percentage. There were no significant second order interactions. Although mean differences were statistically significant, they are so small that they may be of no practical value. However, results demonstrate the relative stability of the characters stodied over a wide range of planting patterns and population densities.
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Claims 13
Claim · model-written summary
Yield differed significantly among years and within-row spacings of Atlas cotton.
- Taxon
- cotton
Gossypium hirsutume0 - Material
- Atlase0
- Treatment
- within‐row spacingse1
- Outcome
- yielde1
- Setting
- Experiment, Ga.e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e1“Significant differences in yield due to years and to within‐row spacings were found, but number of plants per hill did not affect yield”
Claim · model-written summary
Number of plants per hill did not affect yield of Atlas cotton.
- Taxon
- cottonGossypium hirsutume0
- Material
- Atlase0
- Treatment
- number of plants per hille1
- Outcome
- yielde1
- Direction
- did not affecte1
- Setting
- Experiment, Ga.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e1“Significant differences in yield due to years and to within‐row spacings were found, but number of plants per hill did not affect yield”
Claim · model-written summary
Plants in hills spaced 20 and 40 cm apart produced higher yields than plants spaced 60 cm apart.
- Taxon
- cottonGossypium hirsutume0
- Material
- Atlase0
- Treatment
- hills spaced 20 and 40 cm aparte2
- Outcome
- yieldse2
- Direction
- highere2
- Comparator
- the plants spaced 60 cme2
- Setting
- Experiment, Ga.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e2“The plants in hills spaced 20 and 40 cm apart produced higher yields than the plants spaced 60 cm”
Claim · model-written summary
A population of 96,330 to 144,495 plants/ha produced the best yields of Atlas cotton.
- Taxon
- cottonGossypium hirsutume0
- Material
- Atlase0
- Outcome
- yieldse3
- Value
- 96,330 to 144,495 plants/hae3
- Qualifier
- best yieldse3
- Setting
- Experiment, Ga.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e3“A population range of 96,330 to 144,495 plants/ha produced best yields”
Claim · model-written summary
Lint percentage was highest at 60-cm spacing with two plants per hill.
- Taxon
- cottonGossypium hirsutume0
- Material
- Atlase0
- Treatment
- 60‐cm spacinge4
- Outcome
- Lint percentagee4
- Direction
- higheste4
- Setting
- Experiment, Ga.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e4“Lint percentage was highest and bolls were largest from plants at the 60‐cm spacing and when there were 2 plants/hill”
Claim · model-written summary
Bolls of Atlas cotton were largest at 60-cm spacing with two plants per hill.
- Taxon
- cottonGossypium hirsutume0
- Material
- Atlase0
- Treatment
- 60‐cm spacinge4
- Outcome
- bollse4
- Direction
- largeste4
- Setting
- Experiment, Ga.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e4“Lint percentage was highest and bolls were largest from plants at the 60‐cm spacing and when there were 2 plants/hill”
Claim · model-written summary
The longest fibers of Atlas cotton were produced by 3 plants per hill and by 40-cm spacing.
- Taxon
- cottonGossypium hirsutume0
- Material
- Atlase0
- Treatment
- 3 plants/hille5
- Outcome
- fiberse5
- Direction
- longeste5
- Setting
- Experiment, Ga.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e5“the longest fibers were produced by 3 plants/hill and by plants at 40‐cm spacing”
Claim · model-written summary
The strongest fibers of Atlas cotton were produced by plants spaced 60 cm apart.
- Taxon
- cottonGossypium hirsutume0
- Material
- Atlase0
- Treatment
- plants spaced 60 cm aparte6
- Outcome
- fiberse6
- Direction
- strongeste6
- Setting
- Experiment, Ga.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e6“the strongest fibers were produced by plants spaced 60 cm apart”
Claim · model-written summary
Fiber fineness of Atlas cotton was influenced by years only.
- Taxon
- cottonGossypium hirsutume0
- Material
- Atlase0
- Treatment
- yearse7
- Outcome
- Fiber finenesse7
- Setting
- Experiment, Ga.e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e7“Fiber fineness was influenced by years only”
Claim · model-written summary
Two-way interactions of years with plants per hill, spacing and yield-related traits were significant for cotton.
- Taxon
- cottonGossypium hirsutume0
- Material
- Atlase0
- Outcome
- interactionse7
- Qualifier
- Years × plants/hill: boll size, fiber length, fiber fineness, yield, lint percentage, and seed sizee7
- Setting
- Experiment, Ga.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e7“The following interactions were found: Years × plants/hill: boll size, fiber length, fiber fineness, yield, lint percentage, and seed size”
Claim · model-written summary
There were no significant second-order interactions among years, plants per hill and spacing in cotton.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- second order interactionse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e7“There were no significant second order interactions”
Claim · model-written summary
Mean differences among planting patterns were statistically significant but may be of no practical value.
- Taxon
- cottonGossypium hirsutume0
- Material
- Atlase0
- Outcome
- mean differencese7
- Qualifier
- so small that they may be of no practical valuee7
- Setting
- Experiment, Ga.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e7“Although mean differences were statistically significant, they are so small that they may be of no practical value”
Claim · model-written summary
Characters of Atlas cotton are relatively stable over a wide range of planting patterns and population densities.
- Taxon
- cottonGossypium hirsutume0
- Material
- Atlase0
- Outcome
- relative stability of the characterse7
- Qualifier
- over a wide range of planting patterns and population densitiese7
- Setting
- Experiment, Ga.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiment, Ga., using ‘Atlas’ cotton”
e7“results demonstrate the relative stability of the characters stodied over a wide range of planting patterns and population densities”
The same questions in other papers
density · quality: grain · Gossypium hirsutum (cotton)Positive and negative results
33 papers in the same direction as this paper · 34 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- negative
65 papers more in this group
See all 69 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.