Abstract
The effectiveness of selected cultural practices in managing the Columbia lance nematode, Hoplolaimus columbus, on cotton was evaluated in experiments in growers' infested fields. The effects of planting date, cotton cultivar, treatment with the growth regulator mepiquat chloride, and destruction of cotton-root systems after harvest on cotton-lint yield and population densities of H. columbus were studied. The yield of cotton cultivar Deltapine 50 was negatively related (P = 0.054) to initial population density of H. columbus whereas the yield of Deltapine 90 was not affected by preplant density of this nematode, indicating tolerance in Deltapine 90. Reproduction of this nematode did not differ on the two cultivars. Planting date and treatment with the growth regulator mepiquat chloride did not influence cotton yield in a consistent manner. Application of mepiquat chloride suppressed (P </= 0.05) numbers of Columbia lance nematode, although there was an interaction (P </= 0.05) with cultivar and year. Early vs. late destruction of cotton-root systems did not impact population densities of this nematode either year, and had no impact on the subsequent cotton crop. The nematicide fenamiphos increased (P </= 0.03) cotton yield when H. columbus numbers exceeded the damage threshold.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Yield of cotton cultivar Deltapine 50 was negatively related to initial population density of H. columbus
- Taxon
- cotton
Gossypium hirsutume0 - Material
- Deltapine 50e1
- Interactor
- H. columbusHoplolaimus columbuse1pest
- Outcome
- yielde1
- Direction
- negatively relatede1
- Qualifier
- P = 0.054e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effectiveness of selected cultural practices in managing the Columbia lance nematode, Hoplolaimus columbus, on cotton was evaluated in experiments in growers' infested fields”
e1“The yield of cotton cultivar Deltapine 50 was negatively related (P = 0.054) to initial population density of H. columbus whereas the yield of Deltapine 90 was not affected by preplant density of this nematode, indicating tolerance in Deltapine 90”
Claim · model-written summary
Yield of cotton cultivar Deltapine 90 was not affected by initial population density of H. columbus
- Taxon
- cottonGossypium hirsutume1
- Material
- Deltapine 90e1
- Interactor
- H. columbusHoplolaimus columbuse1pest
- Outcome
- yielde1
- Direction
- was not affectede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effectiveness of selected cultural practices in managing the Columbia lance nematode, Hoplolaimus columbus, on cotton was evaluated in experiments in growers' infested fields”
e1“The yield of cotton cultivar Deltapine 50 was negatively related (P = 0.054) to initial population density of H. columbus whereas the yield of Deltapine 90 was not affected by preplant density of this nematode, indicating tolerance in Deltapine 90”
Claim · model-written summary
Cotton cultivar Deltapine 90 shows tolerance to H. columbus
- Taxon
- cottonGossypium hirsutume1
- Material
- Deltapine 90e1
- Interactor
- H. columbusHoplolaimus columbuse1pest
- Outcome
- tolerance in Deltapine 90e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effectiveness of selected cultural practices in managing the Columbia lance nematode, Hoplolaimus columbus, on cotton was evaluated in experiments in growers' infested fields”
e1“The yield of cotton cultivar Deltapine 50 was negatively related (P = 0.054) to initial population density of H. columbus whereas the yield of Deltapine 90 was not affected by preplant density of this nematode, indicating tolerance in Deltapine 90”
Claim · model-written summary
Reproduction of Hoplolaimus columbus did not differ between the two cotton cultivars
- Taxon
- cottonGossypium hirsutume0
- Material
- two cultivarse2
- Interactor
- Hoplolaimus columbusHoplolaimus columbuse0pest
- Outcome
- Reproduction of this nematodee2
- Direction
- did not differe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effectiveness of selected cultural practices in managing the Columbia lance nematode, Hoplolaimus columbus, on cotton was evaluated in experiments in growers' infested fields”
e2“Reproduction of this nematode did not differ on the two cultivars”
Claim · model-written summary
Planting date did not influence cotton yield in a consistent manner
- Taxon
- cottonGossypium hirsutume3
- Treatment
- Planting datee3
- Outcome
- cotton yielde3
- Direction
- did not influencee3
- Qualifier
- in a consistent mannere3
- Setting
- growers' infested fieldse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effectiveness of selected cultural practices in managing the Columbia lance nematode, Hoplolaimus columbus, on cotton was evaluated in experiments in growers' infested fields”
e3“Planting date and treatment with the growth regulator mepiquat chloride did not influence cotton yield in a consistent manner”
Claim · model-written summary
Treatment with mepiquat chloride did not influence cotton yield in a consistent manner
- Taxon
- cottonGossypium hirsutume3
- Treatment
- treatment with the growth regulator mepiquat chloridee3
- Outcome
- cotton yielde3
- Direction
- did not influencee3
- Qualifier
- in a consistent mannere3
- Setting
- growers' infested fieldse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effectiveness of selected cultural practices in managing the Columbia lance nematode, Hoplolaimus columbus, on cotton was evaluated in experiments in growers' infested fields”
e3“Planting date and treatment with the growth regulator mepiquat chloride did not influence cotton yield in a consistent manner”
Claim · model-written summary
Mepiquat chloride suppressed numbers of Columbia lance nematode
- Taxon
- cottonGossypium hirsutume0
- Treatment
- Application of mepiquat chloridee4
- Interactor
- Columbia lance nematodee4pest
- Outcome
- numbers of Columbia lance nematodee4
- Direction
- suppressede4
- Qualifier
- an interaction (P </= 0.05) with cultivar and yeare4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effectiveness of selected cultural practices in managing the Columbia lance nematode, Hoplolaimus columbus, on cotton was evaluated in experiments in growers' infested fields”
e4“Application of mepiquat chloride suppressed (P </= 0.05) numbers of Columbia lance nematode, although there was an interaction (P </= 0.05) with cultivar and year”
Claim · model-written summary
Early versus late destruction of cotton-root systems did not impact population densities of the nematode
- Taxon
- cottonGossypium hirsutume5
- Treatment
- destruction of cotton-root systemse5
- Interactor
- Hoplolaimus columbusHoplolaimus columbuse0pest
- Outcome
- population densities of this nematodee5
- Direction
- did not impacte5
- Qualifier
- either yeare5
- Comparator
- late destructione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effectiveness of selected cultural practices in managing the Columbia lance nematode, Hoplolaimus columbus, on cotton was evaluated in experiments in growers' infested fields”
e5“Early vs. late destruction of cotton-root systems did not impact population densities of this nematode either year, and had no impact on the subsequent cotton crop”
Claim · model-written summary
Destruction of cotton-root systems had no impact on the subsequent cotton crop
- Taxon
- cottonGossypium hirsutume5
- Treatment
- destruction of cotton-root systemse5
- Outcome
- subsequent cotton crope5
- Direction
- had no impacte5
- Comparator
- late destructione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Early vs. late destruction of cotton-root systems did not impact population densities of this nematode either year, and had no impact on the subsequent cotton crop”
Claim · model-written summary
The nematicide fenamiphos increased cotton yield when H. columbus numbers exceeded the damage threshold
- Taxon
- cottonGossypium hirsutume6
- Treatment
- nematicide fenamiphose6
- Interactor
- H. columbusHoplolaimus columbuse6pest
- Outcome
- cotton yielde6
- Direction
- increasede6
- Qualifier
- when H. columbus numbers exceeded the damage thresholde6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effectiveness of selected cultural practices in managing the Columbia lance nematode, Hoplolaimus columbus, on cotton was evaluated in experiments in growers' infested fields”
e6“The nematicide fenamiphos increased (P </= 0.03) cotton yield when H. columbus numbers exceeded the damage threshold”
The same questions in other papers
mepiquat chloride · yield · Gossypium hirsutum (cotton)Positive and negative results
10 papers in the same direction as this paper · 59 in the opposite direction
- positive
- positive
- positive
66 papers more in this group
See all 70 papers →chloride · yield · Gossypium hirsutum (cotton)Positive and negative results
10 papers in the same direction as this paper · 67 in the opposite direction
- positive
- positive
- positive
74 papers more in this group
See all 78 papers →fenamiphos · Hoplolaimus columbus · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- positive
insecticide · Hoplolaimus columbus · Gossypium hirsutum (cotton)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
class · yield · Gossypium hirsutum (cotton)Positive and negative results
8 papers in the same direction as this paper · 14 in the opposite direction
- positive
- positive
- positive
19 papers more in this group
See all 23 papers →sowing time · yield · Gossypium hirsutum (cotton)Positive and negative results
28 papers in the same direction as this paper · 66 in the opposite direction
- positive
- positive
- positive
91 papers more in this group
See all 95 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.