Abstract
The efficacy of early-season prothioconazole applications on stem rot (Sclerotium rolfsii) epidemics of peanut (Arachis hypogaea) planted on different dates was evaluated to better understand stem rot development and obtain more consistent disease control. The industry standard cultivar (Georgia-06G) was planted on four different dates at about 2-week intervals starting 25 April of both 2012 and 2013. Plots were either not treated or treated with prothioconazole (0.16 kg a.i./ha) at 21 or 35 days after planting (DAP) applied in a 30-cm band. All plots received chlorothalonil (2.09 kg a.i./ha) for leaf spot control. The mean final stem rot incidence in nontreated plots for planting dates 1 to 4 were 32, 15, 13, and 9% in 2012 and 25, 13, 24, and 6% in 2013, respectively. Final incidence of stem rot in plots treated with prothioconazole followed a similar pattern, but disease incidence was reduced by an average of 36 and 46% in 2012 and 4 and 14% in 2013 for the 21 and 35 DAP applications, respectively. Pod yields in nontreated plots for planting dates 1 to 4 (chlorothalonil only) were 6,446, 6,578, 5,479, and 2,613 kg/ha in 2012 and 2,914, 6,456, 5,399, and 3,123 kg/ha in 2013, respectively. Prothioconazole-treated plots (at either 21 or 35 DAP) averaged 475 and 600 kg/ha higher yield than nontreated plots in 2012 and 2013, respectively, but the differences between these two timings were not significant (P > 0.10). Both 2012 and 2013 had relatively cooler spring temperatures and lower risk of early stem rot. The efficacy and yield increase from the early prothioconazole application may have been greater in a warmer spring.
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Claims 10
Claim · model-written summary
Final stem rot incidence in nontreated peanut plots was 32, 15, 13 and 9% across planting dates 1 to 4 in 2012.
- Taxon
- peanut
Arachis hypogaeae1 - Interactor
- Sclerotium rolfsii
Agroathelia rolfsiie1pathogen - Outcome
- final stem rot incidencee2
- Value
- 32, 15, 13, and 9%e2
- Qualifier
- planting dates 1 to 4e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“stem rot (Sclerotium rolfsii) epidemics of peanut (Arachis hypogaea)”
e2“The mean final stem rot incidence in nontreated plots for planting dates 1 to 4 were 32, 15, 13, and 9% in 2012 and 25, 13, 24, and 6% in 2013, respectively”
Claim · model-written summary
Final stem rot incidence in nontreated peanut plots was 25, 13, 24 and 6% across planting dates 1 to 4 in 2013.
- Taxon
- peanutArachis hypogaeae1
- Interactor
- Sclerotium rolfsiiAgroathelia rolfsiie1pathogen
- Outcome
- final stem rot incidencee2
- Value
- 25, 13, 24, and 6%e2
- Qualifier
- planting dates 1 to 4e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“stem rot (Sclerotium rolfsii) epidemics of peanut (Arachis hypogaea)”
e2“The mean final stem rot incidence in nontreated plots for planting dates 1 to 4 were 32, 15, 13, and 9% in 2012 and 25, 13, 24, and 6% in 2013, respectively”
Claim · model-written summary
Prothioconazole reduced peanut stem rot incidence by 36% relative to nontreated plots in 2012 at 21 DAP.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- prothioconazolee3
- Interactor
- Sclerotium rolfsiiAgroathelia rolfsiie1pathogen
- Outcome
- disease incidencee3
- Direction
- reducede3
- Value
- 36e3
- Qualifier
- 2012e3
- Comparator
- nontreated plotse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“stem rot (Sclerotium rolfsii) epidemics of peanut (Arachis hypogaea)”
e2“The mean final stem rot incidence in nontreated plots for planting dates 1 to 4 were 32, 15, 13, and 9% in 2012 and 25, 13, 24, and 6% in 2013, respectively”
e3“Final incidence of stem rot in plots treated with prothioconazole followed a similar pattern, but disease incidence was reduced by an average of 36 and 46% in 2012 and 4 and 14% in 2013 for the 21 and 35 DAP applications, respectively”
Claim · model-written summary
Prothioconazole reduced peanut stem rot incidence by 4% relative to nontreated plots in 2013 at 21 DAP.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- prothioconazolee3
- Interactor
- Sclerotium rolfsiiAgroathelia rolfsiie1pathogen
- Outcome
- disease incidencee3
- Direction
- reducede3
- Value
- 4e3
- Qualifier
- 2013e3
- Comparator
- nontreated plotse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“stem rot (Sclerotium rolfsii) epidemics of peanut (Arachis hypogaea)”
e2“The mean final stem rot incidence in nontreated plots for planting dates 1 to 4 were 32, 15, 13, and 9% in 2012 and 25, 13, 24, and 6% in 2013, respectively”
e3“Final incidence of stem rot in plots treated with prothioconazole followed a similar pattern, but disease incidence was reduced by an average of 36 and 46% in 2012 and 4 and 14% in 2013 for the 21 and 35 DAP applications, respectively”
Claim · model-written summary
Prothioconazole reduced peanut stem rot incidence by 46% relative to nontreated plots in 2012 at 35 DAP.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- prothioconazolee3
- Interactor
- Sclerotium rolfsiiAgroathelia rolfsiie1pathogen
- Outcome
- disease incidencee3
- Direction
- reducede3
- Value
- 46%e3
- Qualifier
- 2012e3
- Comparator
- nontreated plotse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“stem rot (Sclerotium rolfsii) epidemics of peanut (Arachis hypogaea)”
e2“The mean final stem rot incidence in nontreated plots for planting dates 1 to 4 were 32, 15, 13, and 9% in 2012 and 25, 13, 24, and 6% in 2013, respectively”
e3“Final incidence of stem rot in plots treated with prothioconazole followed a similar pattern, but disease incidence was reduced by an average of 36 and 46% in 2012 and 4 and 14% in 2013 for the 21 and 35 DAP applications, respectively”
Claim · model-written summary
Prothioconazole reduced peanut stem rot incidence by 14% relative to nontreated plots in 2013 at 35 DAP.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- prothioconazolee3
- Interactor
- Sclerotium rolfsiiAgroathelia rolfsiie1pathogen
- Outcome
- disease incidencee3
- Direction
- reducede3
- Value
- 14%e3
- Qualifier
- 2013e3
- Comparator
- nontreated plotse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“stem rot (Sclerotium rolfsii) epidemics of peanut (Arachis hypogaea)”
e2“The mean final stem rot incidence in nontreated plots for planting dates 1 to 4 were 32, 15, 13, and 9% in 2012 and 25, 13, 24, and 6% in 2013, respectively”
e3“Final incidence of stem rot in plots treated with prothioconazole followed a similar pattern, but disease incidence was reduced by an average of 36 and 46% in 2012 and 4 and 14% in 2013 for the 21 and 35 DAP applications, respectively”
Claim · model-written summary
Prothioconazole-treated peanut plots averaged 475 and 600 kg/ha higher pod yield than nontreated plots in 2012 and 2013.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- prothioconazolee4
- Outcome
- yielde4
- Direction
- highere4
- Value
- 475 and 600 kg/hae4
- Qualifier
- 2012 and 2013e4
- Comparator
- nontreated plotse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“stem rot (Sclerotium rolfsii) epidemics of peanut (Arachis hypogaea)”
e4“Prothioconazole-treated plots (at either 21 or 35 DAP) averaged 475 and 600 kg/ha higher yield than nontreated plots in 2012 and 2013”
Claim · model-written summary
The yield difference between the 21 and 35 DAP prothioconazole timings was not significant.
- Taxon
- peanutArachis hypogaeae1
- Treatment
- prothioconazolee4
- Outcome
- yielde4
- Direction
- no_changeinferrede5
- Qualifier
- P > 0.10e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“stem rot (Sclerotium rolfsii) epidemics of peanut (Arachis hypogaea)”
e4“Prothioconazole-treated plots (at either 21 or 35 DAP) averaged 475 and 600 kg/ha higher yield than nontreated plots in 2012 and 2013”
e5“the differences between these two timings were not significant (P > 0.10)”
Claim · model-written summary
Nontreated peanut plots (chlorothalonil only) yielded 6,446, 6,578, 5,479 and 2,613 kg/ha across planting dates 1 to 4 in 2012.
- Taxon
- peanutArachis hypogaeae1
- Outcome
- Pod yieldse6
- Value
- 6,446, 6,578, 5,479, and 2,613 kg/hae6
- Qualifier
- planting dates 1 to 4e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“stem rot (Sclerotium rolfsii) epidemics of peanut (Arachis hypogaea)”
e6“Pod yields in nontreated plots for planting dates 1 to 4 (chlorothalonil only) were 6,446, 6,578, 5,479, and 2,613 kg/ha in 2012 and 2,914, 6,456, 5,399, and 3,123 kg/ha in 2013”
Claim · model-written summary
Nontreated peanut plots (chlorothalonil only) yielded 2,914, 6,456, 5,399 and 3,123 kg/ha across planting dates 1 to 4 in 2013.
- Taxon
- peanutArachis hypogaeae1
- Outcome
- Pod yieldse6
- Value
- 2,914, 6,456, 5,399, and 3,123 kg/hae6
- Qualifier
- planting dates 1 to 4e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“stem rot (Sclerotium rolfsii) epidemics of peanut (Arachis hypogaea)”
e6“Pod yields in nontreated plots for planting dates 1 to 4 (chlorothalonil only) were 6,446, 6,578, 5,479, and 2,613 kg/ha in 2012 and 2,914, 6,456, 5,399, and 3,123 kg/ha in 2013”
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See all 7 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.