Abstract
Field tests were conducted in 1993 and 1994 at a site with replicated irrigated and nonirrigated sections to evaluate the effect of irrigation on stem rot disease severity and on yield loss models, and to assess the relationship between aboveground and belowground disease ratings. The relationship between the number of cyproconazole applications and stem rot severity and peanut yield also were examined. Rainfall amounts were higher in 1994 than in 1993. Area under the disease progress curve (AUDPC) was calculated from weekly measurements of aboveground stem rot lesions. AUDPC, belowground disease ratings, and peanut yield were increased by irrigation in 1993 but not in 1994. Belowground disease ratings reflected AUDPC in irrigated and nonirrigated plots in 1993 and 1994, but the slopes of regression lines were greater in nonirrigated plots. Also, for any given AUDPC, the belowground rating was higher in the nonirrigated plots than in the irrigated plots. Increasing the number of cyproconazole applications decreased AUDPC and belowground disease ratings and increased yield. The results of this study indicate that the interrelationships of AUDPC, belowground stem rot ratings, and yield are strongly influenced by irrigation, but these effects do not carry over to subsequent crops. Either AUDPC or belowground stem rot ratings may be used in yield loss models, except in nonirrigated fields in dry years when belowground ratings must be used.
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Claims 8
Claim · model-written summary
Irrigation increased AUDPC, belowground disease ratings, and peanut yield in 1993, but not 1994.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- irrigatione0
- Outcome
- AUDPC, belowground disease ratings, and peanut yielde0
- Direction
- increasede0
- Qualifier
- in 1993 but not in 1994e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AUDPC, belowground disease ratings, and peanut yield were increased by irrigation in 1993 but not in 1994”
t0“peanut”
Claim · model-written summary
Belowground ratings reflected AUDPC under both irrigation regimes in both study years.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- Belowground disease ratingse0
- Comparator
- AUDPCe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Belowground disease ratings reflected AUDPC in irrigated and nonirrigated plots in 1993 and 1994”
t0“peanut”
Claim · model-written summary
Regression slopes between belowground ratings and AUDPC were greater without irrigation.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- slopes of regression linese0
- Direction
- greatere0
- Setting
- nonirrigated plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the slopes of regression lines were greater in nonirrigated plots”
t0“peanut”
Claim · model-written summary
At a given AUDPC, belowground ratings were higher without irrigation.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- belowground ratinge0
- Direction
- highere0
- Comparator
- irrigated plotse0
- Setting
- nonirrigated plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for any given AUDPC, the belowground rating was higher in the nonirrigated plots than in the irrigated plots”
t0“peanut”
Claim · model-written summary
More cyproconazole applications decreased AUDPC and belowground disease ratings.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- cyproconazole applicationse0
- Outcome
- AUDPC and belowground disease ratingse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the number of cyproconazole applications decreased AUDPC and belowground disease ratings and increased yield”
t0“peanut”
Claim · model-written summary
More cyproconazole applications increased yield.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- cyproconazole applicationse0
- Outcome
- yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the number of cyproconazole applications decreased AUDPC and belowground disease ratings and increased yield”
t0“peanut”
Claim · model-written summary
Irrigation influenced relationships among AUDPC, belowground stem rot ratings and yield, without carryover to subsequent crops.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- irrigatione0
- Outcome
- interrelationships of AUDPC, belowground stem rot ratings, and yielde0
- Qualifier
- do not carry over to subsequent cropse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the interrelationships of AUDPC, belowground stem rot ratings, and yield are strongly influenced by irrigation, but these effects do not carry over to subsequent crops”
t0“peanut”
Claim · model-written summary
Either AUDPC or belowground ratings can serve in yield loss models, except belowground ratings are required for nonirrigated dry years.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- belowground ratings must be usede0
- Qualifier
- nonirrigated fields in dry yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Either AUDPC or belowground stem rot ratings may be used in yield loss models, except in nonirrigated fields in dry years when belowground ratings must be used”
t0“peanut”
The same questions in other papers
cyproconazole · disease · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- positive
cyproconazole · yield · Arachis hypogaea (peanut)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.