Abstract
Soybean severe stunt (SSS), caused by the Soybean severe stunt virus (SSSV), is a soilborne virus disease affecting soybean (Glycine max) first described in Delaware in 1988. Lack of breeding programs directed at incorporating resistance to SSSV in new cultivar releases necessitated alternative methods of SSS control. The effect of crops in 2-year rotations on the dagger nematode (Xiphinema americanum), the putative nematode vector of SSSV, and SSS severity were examined. Two years of continuous corn or grain sorghum, wheat followed by 'HT-5203' soybean, or 2-year fallow, reduced both dagger nematode density in the soil and SSS severity. Crop rotation to the SSSV-tolerant HT-5203 soybean as a single crop for 2 years increased dagger ematode populations and SSS severity. Greenhouse studies indicated that corn, wheat, marigold, castor, and fallow treatments reduced dagger nematodes the most after 14 weeks compared with 'Essex' and HT 5203 soybean.
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Claims 5
Claim · model-written summary
Two-year rotations of continuous corn or grain sorghum, wheat followed by HT-5203 soybean, or 2-year fallow reduced dagger nematode density in the soil.
- Taxon
- soybean
Glycine maxe1 - Treatment
- Two years of continuous corn or grain sorghum, wheat followed by 'HT-5203' soybean, or 2-year fallowe1
- Interactor
- Xiphinema americanumXiphinema americanume2pest
- Outcome
- dagger nematode density in the soile1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Two years of continuous corn or grain sorghum, wheat followed by 'HT-5203' soybean, or 2-year fallow, reduced both dagger nematode density in the soil and SSS severity”
e2“dagger nematode (Xiphinema americanum), the putative nematode vector of SSSV”
Claim · model-written summary
The same two-year rotations reduced soybean severe stunt severity.
- Taxon
- soybeanGlycine maxe1
- Treatment
- Two years of continuous corn or grain sorghum, wheat followed by 'HT-5203' soybean, or 2-year fallowe1
- Interactor
- Soybean severe stunt viruse0pathogen
- Outcome
- SSS severitye1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Two years of continuous corn or grain sorghum, wheat followed by 'HT-5203' soybean, or 2-year fallow, reduced both dagger nematode density in the soil and SSS severity”
e0“caused by the Soybean severe stunt virus (SSSV)”
Claim · model-written summary
Crop rotation to the SSSV-tolerant HT-5203 soybean as a single crop for 2 years increased dagger nematode populations.
- Taxon
- soybeanGlycine maxe3
- Treatment
- Crop rotation to the SSSV-tolerant HT-5203 soybean as a single crop for 2 yearse3
- Interactor
- Xiphinema americanumXiphinema americanume2pest
- Outcome
- dagger ematode populationse3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Crop rotation to the SSSV-tolerant HT-5203 soybean as a single crop for 2 years increased dagger ematode populations and SSS severity”
e2“dagger nematode (Xiphinema americanum), the putative nematode vector of SSSV”
Claim · model-written summary
Crop rotation to the SSSV-tolerant HT-5203 soybean as a single crop for 2 years increased soybean severe stunt severity.
- Taxon
- soybeanGlycine maxe3
- Treatment
- Crop rotation to the SSSV-tolerant HT-5203 soybean as a single crop for 2 yearse3
- Interactor
- Soybean severe stunt viruse0pathogen
- Outcome
- SSS severitye3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Crop rotation to the SSSV-tolerant HT-5203 soybean as a single crop for 2 years increased dagger ematode populations and SSS severity”
e0“caused by the Soybean severe stunt virus (SSSV)”
Claim · model-written summary
In greenhouse studies, corn, wheat, marigold, castor and fallow treatments reduced dagger nematodes the most after 14 weeks compared with Essex and HT 5203 soybean.
- Taxon
- soybeanGlycine maxe4
- Treatment
- corn, wheat, marigold, castor, and fallow treatmentse4
- Interactor
- Xiphinema americanumXiphinema americanume2pest
- Outcome
- dagger nematodese4
- Direction
- reducede4
- Qualifier
- after 14 weekse4
- Comparator
- 'Essex' and HT 5203 soybeane4
- Setting
- Greenhouse studiese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Greenhouse studies indicated that corn, wheat, marigold, castor, and fallow treatments reduced dagger nematodes the most after 14 weeks compared with 'Essex' and HT 5203 soybean”
e2“dagger nematode (Xiphinema americanum), the putative nematode vector of SSSV”
The same questions in other papers
Sorghum · disease · Glycine max (soybean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
Triticum aestivum · disease · Glycine max (soybean)Results agree
2 papers in the same direction as this paper
- positive
- positive
rotation · disease · Glycine max (soybean)Positive and negative results
3 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- no effect
6 papers more in this group
See all 10 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.