Abstract
Microplot and field experiments were used to examine the plant-growth stimulation frequently associated with the use of aldicarb on tobacco in the absence of major pests. Aldicarb rates of 1.5-4.5 kg a.i./ha enhanced tobacco growth and yield in most experiments, but higher rates (>/= 4.5 kg) usually resulted in a neutral to negative effect. Tobacco cultivars NC 82 and Speight G-28 were more responsive than McNair 944 to the pesticide in microplots. Supplemental irrigation enhanced the responsiveness of Speight G-70 tobacco and McNair 944 to aldicarb, but excessive moisture (ca. 7-8 cm/week) limited cured-leaf yields. Aldicarb also resulted in the greatest mean tobacco yields in 35 field experiments involving Meloidogyne spp. over 3 years, relative to ethoprop, 1,3-dichloropropene (1,3-D), 1,3-D + chloropicrin, and nontreated controls. Thus, aldicarb generally enhanced tobacco growth and yield in the presence or absence of nematodes, but its impact is dependent on other variables, including cultivar, soil moisture, and soil type.
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Claims 9
Claim · model-written summary
Aldicarb at 1.5-4.5 kg a.i./ha enhanced tobacco growth in most experiments.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- Aldicarb rates of 1.5-4.5 kg a.i./hae0
- Outcome
- tobacco growthe0
- Direction
- enhancede0
- Qualifier
- in most experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aldicarb rates of 1.5-4.5 kg a.i./ha enhanced tobacco growth and yield in most experiments”
Claim · model-written summary
Aldicarb at 1.5-4.5 kg a.i./ha enhanced tobacco yield in most experiments.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Aldicarb rates of 1.5-4.5 kg a.i./hae0
- Outcome
- yielde0
- Direction
- enhancede0
- Qualifier
- in most experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aldicarb rates of 1.5-4.5 kg a.i./ha enhanced tobacco growth and yield in most experiments”
Claim · model-written summary
Higher aldicarb rates usually had neutral to negative effects.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- higher rates (>/= 4.5 kg)e0
- Outcome
- neutral to negative effecte0
- Direction
- neutral to negativee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher rates (>/= 4.5 kg) usually resulted in a neutral to negative effect”
e1“on tobacco”
Claim · model-written summary
NC 82 was more responsive to aldicarb than McNair 944 in microplots.
- Taxon
- TobaccoNicotiana tabacume0
- Material
- NC 82e0
- Outcome
- responsivee0
- Direction
- more responsivee0
- Comparator
- McNair 944e0
- Setting
- microplotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tobacco cultivars NC 82 and Speight G-28 were more responsive than McNair 944 to the pesticide in microplots.”
Claim · model-written summary
Speight G-28 was more responsive to aldicarb than McNair 944 in microplots.
- Taxon
- TobaccoNicotiana tabacume0
- Material
- Speight G-28e0
- Outcome
- responsivee0
- Direction
- more responsivee0
- Comparator
- McNair 944e0
- Setting
- microplotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tobacco cultivars NC 82 and Speight G-28 were more responsive than McNair 944 to the pesticide in microplots.”
Claim · model-written summary
Irrigation enhanced Speight G-70 tobacco responsiveness to aldicarb.
- Taxon
- tobaccoNicotiana tabacume0
- Material
- Speight G-70e0
- Treatment
- Supplemental irrigatione0
- Outcome
- responsivenesse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplemental irrigation enhanced the responsiveness of Speight G-70 tobacco and McNair 944 to aldicarb”
Claim · model-written summary
Irrigation enhanced McNair 944 tobacco responsiveness to aldicarb.
- Taxon
- tobaccoNicotiana tabacume0
- Material
- McNair 944e0
- Treatment
- Supplemental irrigatione0
- Outcome
- responsivenesse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplemental irrigation enhanced the responsiveness of Speight G-70 tobacco and McNair 944 to aldicarb”
Claim · model-written summary
Excessive moisture limited cured-leaf yield.
- Taxon
- tobaccoNicotiana tabacume1
- Treatment
- excessive moisture (ca. 7-8 cm/week)e0
- Outcome
- cured-leaf yieldse0
- Direction
- limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excessive moisture (ca. 7-8 cm/week) limited cured-leaf yields”
e1“on tobacco in the absence of major pests”
Claim · model-written summary
Aldicarb gave the greatest mean tobacco yield across 35 nematode field experiments compared with other pesticides and untreated controls.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Aldicarbe0
- Interactor
- Meloidogyne spp.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynee0pathogen - Outcome
- mean tobacco yieldse0
- Direction
- greateste0
- Comparator
- ethoprop, 1,3-dichloropropene (1,3-D), 1,3-D + chloropicrin, and nontreated controlse0
- Setting
- field experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e0“Aldicarb also resulted in the greatest mean tobacco yields in 35 field experiments involving Meloidogyne spp. over 3 years, relative to ethoprop, 1,3-dichloropropene (1,3-D), 1,3-D + chloropicrin, and nontreated controls.”
The same questions in other papers
aldicarb · yield · Nicotiana tabacum (tobacco)Results agree
4 papers in the same direction as this paper
- positive
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1 paper more in this group
See all 5 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.