Abstract
ABSTRACT The objective of this study was to evaluate the genetic control integrated to the chemical control of Asian soybean rust (ASR) and the effects of these measures on crop yield. The experiment was conducted in Erechim, Rio Grande do Sul State, Brazil, in 2016/17 and 2017/18 crop years, under a randomized block design, in a subdivided plot scheme (cultivars in the plots and fungicides in the subplots), with four replicates. The following cultivars were used: BMX Vanguarda (without ASR tolerance); TMG 7062; TMG 7262, and TMG 7161, tolerant to ASR (Inox™ Technology cultivars). The fungicides used were: T1) control (without application of fungicides); T2) azoxystrobin + benzovindiflupyr; T3) difenoconazole + cyproconazole; T4) trifloxystrobin + prothioconazole, and T5) epoxiconazole + fluxapyroxad + pyraclostrobin. Four fungicide applications were carried out at the V6, R1, R5.1 and R6 stages. During the experiment, for the calculation of the area under disease progress curve (AUDPC), disease severity was assessed at 7-day intervals in a random sample of 10 trifolia per plot. After harvest, yield components were determined: number of grains per plant, thousand grain weight (g), and yield (kg ha-1). In 2017/18 crop year, the fungicide difenoconazole + cyproconazole was not efficient for ASR control. The soybean cultivars TMG 7062, TMG 7161 and TMG 7261 delayed the disease progression; however, only TMG 7161 presented tolerance in the presence of the inoculum in 2016/17 and 2017/18 crop years. The association between chemical and genetic control is shown to be efficient for ASR control.
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Claims 6
Claim · model-written summary
Difenoconazole plus cyproconazole was ineffective for Asian soybean rust control in 2017/18.
- Taxon
- soybean
Glycine maxt0 - Treatment
- difenoconazole + cyproconazolee0
- Outcome
- ASR controle0
- Direction
- not efficiente0
- Setting
- 2017/18 crop yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2017/18 crop year, the fungicide difenoconazole + cyproconazole was not efficient for ASR control”
t0“soybean”
Claim · model-written summary
TMG 7062 delayed Asian soybean rust progression.
- Taxon
- soybeanGlycine maxe0
- Material
- TMG 7062e0
- Outcome
- disease progressione0
- Direction
- delayede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The soybean cultivars TMG 7062, TMG 7161 and TMG 7261 delayed the disease progression”
t0“soybean”
Claim · model-written summary
TMG 7161 delayed Asian soybean rust progression.
- Taxon
- soybeanGlycine maxe0
- Material
- TMG 7161e0
- Outcome
- disease progressione0
- Direction
- delayede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The soybean cultivars TMG 7062, TMG 7161 and TMG 7261 delayed the disease progression”
Claim · model-written summary
TMG 7261 delayed Asian soybean rust progression, although the cultivar list names TMG 7262.
- Taxon
- soybeanGlycine maxe0
- Material
- TMG 7261e0
- Outcome
- disease progressione0
- Direction
- delayede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The soybean cultivars TMG 7062, TMG 7161 and TMG 7261 delayed the disease progression”
Claim · model-written summary
Only TMG 7161 showed tolerance with inoculum in both crop years.
- Taxon
- soybeanGlycine maxt0
- Material
- TMG 7161e0
- Outcome
- tolerancee0
- Setting
- 2016/17 and 2017/18 crop yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only TMG 7161 presented tolerance in the presence of the inoculum in 2016/17 and 2017/18 crop years”
t0“soybean”
Claim · model-written summary
The authors concluded that combining chemical and genetic control efficiently controlled Asian soybean rust.
- Taxon
- soybeanGlycine maxt0
- Treatment
- chemical and genetic controle0
- Outcome
- ASR controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The association between chemical and genetic control is shown to be efficient for ASR control”
t0“soybean”
The same questions in other papers
difenoconazole · disease · Glycine max (soybean)Positive and negative results
1 in the opposite direction
- positive
cyproconazole · disease · Glycine max (soybean)Positive and negative results
2 in the opposite direction
- 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.