Abstract
Abstract The soybean [ Glycine max (L.) Merr.] cyst nematode ( Heterodera glycines Ichinohe) can cause significant reductions in soybean yield in Tennessee. ‘Forrest’ soybean was grown for 4 yr on a Lexington silt loam (Typic Paleudalf) in an experiment comparing soybean production, using six primary tillage methods: five conventional tillage methods (between‐row subsoiling, under‐row subsoiling, chisel plowing, moldboard plowing, and disking) and no‐tillage in chemically killed wheat ( Triticum aestivum L.). In the fourth season, cyst numbers were lower in no‐tillage compared to conventional tillage. Race 3 and 4 were present in the experimental area. In the fifth season (1983), two cultivars, Forrest (Race 3 resistant) and ‘Bedford’ (Race 3 and Race 4 resistant), were used. Cyst numbers continued to be higher under conventional tillage with both cultivars. Tillage significantly affected soybean cyst nematode which affected the yield of Forrest but not Bedford. In 1983, yields of Bedford were significantly higher than those of Forrest under conventional tillage but not where the treatment had been no‐tillage for 5 yr. In the sixth season, yields were not significantly affected by tillage. Bedford yielded higher than Forrest across all treatments in the sixth year except in the continuous no‐tillage. In contrast to the fifth season, cyst numbers were lower at the end of the season where Bedford was grown. The two short‐term no‐tillage treatments [one in the previous soybean crop residue (2 yr) and one in wheat (1 yr)] were similar to conventional treatments in yield and cyst counts. Cyst numbers in the continuous 6‐yr no‐tillage were lower than the conventional or short‐term no‐tillage treatments.
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Claims 10
Claim · model-written summary
In the fourth season, cyst numbers were lower under no-tillage than under conventional tillage.
- Taxon
- soybean
Glycine maxe1 - Treatment
- no‐tillagee2
- Interactor
- Heterodera glycines
Heterodera glycinese1pathogen - Outcome
- cyst numberse2
- Direction
- lowere2
- Qualifier
- in the fourth seasone2
- Comparator
- conventional tillagee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean [ Glycine max (L.) Merr.] cyst nematode ( Heterodera glycines Ichinohe) can cause significant reductions in soybean yield in Tennessee”
e2“In the fourth season, cyst numbers were lower in no‐tillage compared to conventional tillage”
Claim · model-written summary
Cyst numbers remained higher under conventional tillage with both cultivars in the fifth season.
- Taxon
- soybeanGlycine maxe1
- Treatment
- conventional tillagee3
- Interactor
- Heterodera glycinesHeterodera glycinese1pathogen
- Outcome
- Cyst numberse3
- Direction
- highere3
- Qualifier
- with both cultivarse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean [ Glycine max (L.) Merr.] cyst nematode ( Heterodera glycines Ichinohe) can cause significant reductions in soybean yield in Tennessee”
e3“Cyst numbers continued to be higher under conventional tillage with both cultivars”
Claim · model-written summary
Bedford yielded significantly more than Forrest under conventional tillage in 1983.
- Taxon
- soybeanGlycine maxe1
- Material
- Bedforde4
- Treatment
- conventional tillagee4
- Outcome
- yieldse4
- Direction
- highere4
- Qualifier
- In 1983e4
- Comparator
- Forreste4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean [ Glycine max (L.) Merr.] cyst nematode ( Heterodera glycines Ichinohe) can cause significant reductions in soybean yield in Tennessee”
e4“In 1983, yields of Bedford were significantly higher than those of Forrest under conventional tillage but not where the treatment had been no‐tillage for 5 yr”
Claim · model-written summary
Bedford and Forrest yields did not differ significantly where no-tillage had been used for 5 years.
- Taxon
- soybeanGlycine maxe1
- Material
- Bedforde4
- Treatment
- no‐tillage for 5 yre4
- Outcome
- yieldse4
- Direction
- no_changeinferrede4
- Comparator
- Forreste4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean [ Glycine max (L.) Merr.] cyst nematode ( Heterodera glycines Ichinohe) can cause significant reductions in soybean yield in Tennessee”
e4“In 1983, yields of Bedford were significantly higher than those of Forrest under conventional tillage but not where the treatment had been no‐tillage for 5 yr”
Claim · model-written summary
Yields were not significantly affected by tillage in the sixth season.
- Taxon
- soybeanGlycine maxe1
- Treatment
- tillagee5
- Outcome
- yieldse5
- Direction
- no_changeinferrede5
- Qualifier
- In the sixth seasone5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean [ Glycine max (L.) Merr.] cyst nematode ( Heterodera glycines Ichinohe) can cause significant reductions in soybean yield in Tennessee”
e5“In the sixth season, yields were not significantly affected by tillage”
Claim · model-written summary
Bedford yielded higher than Forrest across all treatments in the sixth year, except in continuous no-tillage.
- Taxon
- soybeanGlycine maxe1
- Material
- Bedforde6
- Treatment
- across all treatmentse6
- Outcome
- yieldede6
- Direction
- highere6
- Qualifier
- except in the continuous no‐tillagee6
- Comparator
- Forreste6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean [ Glycine max (L.) Merr.] cyst nematode ( Heterodera glycines Ichinohe) can cause significant reductions in soybean yield in Tennessee”
e6“Bedford yielded higher than Forrest across all treatments in the sixth year except in the continuous no‐tillage”
Claim · model-written summary
In the fifth season cyst numbers were lower at the end of the season where Bedford was grown.
- Taxon
- soybeanGlycine maxe1
- Material
- Bedforde7
- Outcome
- cyst numberse7
- Direction
- lowere7
- Qualifier
- at the end of the seasone7
- Comparator
- the fifth seasone7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean [ Glycine max (L.) Merr.] cyst nematode ( Heterodera glycines Ichinohe) can cause significant reductions in soybean yield in Tennessee”
e7“In contrast to the fifth season, cyst numbers were lower at the end of the season where Bedford was grown”
Claim · model-written summary
Two short-term no-tillage treatments yielded and had cyst counts similar to conventional treatments.
- Taxon
- soybeanGlycine maxe1
- Treatment
- short‐term no‐tillage treatmentse0
- Outcome
- yield and cyst countse0
- Direction
- no_changeinferrede0
- Comparator
- conventional treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean [ Glycine max (L.) Merr.] cyst nematode ( Heterodera glycines Ichinohe) can cause significant reductions in soybean yield in Tennessee”
e0“The two short‐term no‐tillage treatments [one in the previous soybean crop residue (2 yr) and one in wheat (1 yr)] were similar to conventional treatments in yield and cyst counts”
Claim · model-written summary
Cyst numbers were lower under continuous six-year no-tillage than under conventional or short-term no-tillage treatments.
- Taxon
- soybeanGlycine maxe1
- Treatment
- continuous 6‐yr no‐tillagee0
- Outcome
- Cyst numberse0
- Direction
- lowere0
- Comparator
- the conventional or short‐term no‐tillage treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean [ Glycine max (L.) Merr.] cyst nematode ( Heterodera glycines Ichinohe) can cause significant reductions in soybean yield in Tennessee”
e0“Cyst numbers in the continuous 6‐yr no‐tillage were lower than the conventional or short‐term no‐tillage treatments”
Claim · model-written summary
Tillage affected the yield of Forrest through soybean cyst nematode, with no clear direction stated.
- Taxon
- soybeanGlycine maxe1
- Material
- Forreste0
- Treatment
- Tillagee0
- Interactor
- soybean cyst nematodeHeterodera glycinese0pathogen
- Outcome
- the yield of Forreste0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The soybean [ Glycine max (L.) Merr.] cyst nematode ( Heterodera glycines Ichinohe) can cause significant reductions in soybean yield in Tennessee”
e0“Tillage significantly affected soybean cyst nematode which affected the yield of Forrest but not Bedford”
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See all 390 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.