Abstract
It has become a standard practice for farmers to use a no-till production system where crop residues are left on the soil surface rather than incorporated into the soil. This practice helps reduce soil erosion , conserve energy, increase soil moisture, and reduce erosion. However, many plant pathogens survive in the previous year's crop residue, increasing disease risk in reduced-tillage systems. The effect of tillage on seed borne diseases has not been objectively evaluated in side by side comparisons of till and no-till culture. We evaluated the impact of tillage and foliar fungicide on percent seed infection by Phomopsis Seed Decay (PSD) and Purple Seed Stain (PSS) over 4 years at the Milan Research and Education Center, Milan, TN. Analysis of variance indicated there was no significant difference ( P ≤ 0.05) in PSD and PSS infection due to tillage. However, there was a significant interaction between fungicide and tillage where fungicide significantly reduced PSD in tilled but not in no-till plots. On the contrary, PSS increased in both tilled and no-till plots with fungicide application. These results suggest that fungicide programs under both till and no-till systems may alter the level of severity of these two seed borne diseases and may require further research to minimize the risk.
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Claims 4
Claim · model-written summary
Tillage did not significantly affect seed infection by Phomopsis Seed Decay (PSD) and Purple Seed Stain (PSS) in soybean.
- Taxon
- soybean
Glycine maxt0 - Treatment
- tillagee1
- Second interactor
- Cercospora kukuchiit0pathogen
- Outcome
- PSD and PSS infectione1
- Direction
- no significant differencee1
- Comparator
- no-tille2
- Setting
- Milan Research and Education Center, Milan, TNe4
PhomopsisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“there was no significant difference ( P ≤ 0.05) in PSD and PSS infection due to tillage”
e2“fungicide significantly reduced PSD in tilled but not in no-till plots”
e4“evaluated the impact of tillage and foliar fungicide on percent seed infection by Phomopsis Seed Decay (PSD) and Purple Seed Stain (PSS) over 4 years at the Milan Research and Education Center, Milan, TN”
t0“Phomopsis longicolla and Cercospora kukuchii in soybean”
Claim · model-written summary
Purple Seed Stain (PSS) increased in both tilled and no-till plots with fungicide application.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- seede4
- Treatment
- fungicide applicatione3
- Interactor
- Cercospora kukuchiit0pathogen
- Outcome
- PSSe3
- Direction
- increasede3
- Qualifier
- in both tilled and no-till plotse3
- Setting
- Milan Research and Education Center, Milan, TNe4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“PSS increased in both tilled and no-till plots with fungicide application”
e4“evaluated the impact of tillage and foliar fungicide on percent seed infection by Phomopsis Seed Decay (PSD) and Purple Seed Stain (PSS) over 4 years at the Milan Research and Education Center, Milan, TN”
t0“Phomopsis longicolla and Cercospora kukuchii in soybean”
Claim · model-written summary
Fungicide significantly reduced PSD in tilled plots.
- Taxon
- soybeanGlycine maxt0
- Treatment
- fungicidee2
- Outcome
- PSDe2
- Direction
- reducede2
- Qualifier
- in tillede2
- Setting
- Milan Research and Education Center, Milan, TNe4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“fungicide significantly reduced PSD in tilled but not in no-till plots”
e4“evaluated the impact of tillage and foliar fungicide on percent seed infection by Phomopsis Seed Decay (PSD) and Purple Seed Stain (PSS) over 4 years at the Milan Research and Education Center, Milan, TN”
t0“Phomopsis longicolla and Cercospora kukuchii in soybean”
Claim · model-written summary
Fungicide did not significantly reduce PSD in no-till plots.
- Taxon
- soybeanGlycine maxt0
- Treatment
- fungicidee2
- Outcome
- PSDe2
- Direction
- no_changeinferrede2
- Qualifier
- in no-till plotse2
- Setting
- Milan Research and Education Center, Milan, TNe4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“fungicide significantly reduced PSD in tilled but not in no-till plots”
e4“evaluated the impact of tillage and foliar fungicide on percent seed infection by Phomopsis Seed Decay (PSD) and Purple Seed Stain (PSS) over 4 years at the Milan Research and Education Center, Milan, TN”
t0“Phomopsis longicolla and Cercospora kukuchii in soybean”
The same questions in other papers
tillage · Phomopsis · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- negative
fungicide · Phomopsis · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- 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.