Abstract
Cercospora leaf spots caused by Cercospora arachidicola and Cercosporidium personatum are the most widespread diseases of groundnut that result in severe yield losses in Ethiopia. Field trials were conducted at Babile and Dire Dawa to evaluate the effect of integrated use of host resistance and fungicides on the temporal epidemics of leaf spots and yield of groundnut. The experiments were conducted during the 2010 main cropping season using three groundnut varieties and six fungicide treatments. The experiment was laid out as RCBD in a factorial arrangement with three replications. Severity, disease progress rate, area under disease progress curve (AUDPC) and yield of groundnut were used to evaluate the effects of treatments. High levels of disease control were achieved by weekly application of chlorothalonil at both locations. Up to 25 and 65% severity levels were recorded on sprayed and unsprayed plots of the varieties, respectively. Fungicide applications also significantly reduced disease progress rate and AUDPC value on the susceptible variety. Seed yield harvested from fungicide sprayed plots was consistently greater than the yield harvested from unsprayed plots. Key words: Arachis hypogaea L., Cercospora leaf spots, disease progress rate, disease severity and integrated disease management.
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Claims 4
Claim · model-written summary
Weekly chlorothalonil application achieved high levels of disease control in groundnut at both locations.
- Taxon
- groundnut
Arachis hypogaeae0 - Treatment
- weekly application of chlorothalonile1
- Outcome
- disease controle1
- Direction
- Highe1
- Setting
- both locationse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most widespread diseases of groundnut”
e1“High levels of disease control were achieved by weekly application of chlorothalonil at both locations”
Claim · model-written summary
Severity of leaf spots was lower on fungicide-sprayed plots (up to 25%) than on unsprayed plots (up to 65%).
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- sprayed plotse1
- Outcome
- severity levelse1
- Direction
- decreaseinferrede1
- Value
- 25 and 65%e1
- Qualifier
- Up toe1
- Comparator
- unsprayed plotse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most widespread diseases of groundnut”
e1“Up to 25 and 65% severity levels were recorded on sprayed and unsprayed plots of the varieties, respectively”
Claim · model-written summary
Fungicide applications significantly reduced disease progress rate and AUDPC value on the susceptible variety.
- Taxon
- groundnutArachis hypogaeae0
- Material
- susceptible varietye1
- Treatment
- Fungicide applicationse1
- Outcome
- disease progress rate and AUDPC valuee1
- Direction
- reducede1
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most widespread diseases of groundnut”
e1“Fungicide applications also significantly reduced disease progress rate and AUDPC value on the susceptible variety”
Claim · model-written summary
Seed yield from fungicide-sprayed plots was consistently greater than from unsprayed plots.
- Taxon
- groundnutArachis hypogaeae0
- Treatment
- fungicide sprayed plotse1
- Outcome
- Seed yielde1
- Direction
- greatere1
- Qualifier
- consistentlye1
- Comparator
- unsprayed plotse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most widespread diseases of groundnut”
e1“Seed yield harvested from fungicide sprayed plots was consistently greater than the yield harvested from unsprayed plots”
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