Abstract
Abstract A field experiment was conducted at Ste. Anne de Bellevue, Quebec during the growing seasons of 2002 and 2003, to study the effect of Nod factor treatments, applied at specific growth stages, on photosynthesis and biomass accumulation by soybean grown under two tillage systems (conventional tillage, no-tillage). Spray application of Nod factors increased photosynthesis at the four fully expanded trifoliate leaves and full bloom growth stages under no-tillage and conventional tillage; they increased plant biomass at the beginning seed filling stage. Nod factor treatment did not affect yield in 2002, due to severe drought during the reproductive period. In 2003, Nod factor application increased yield under conventional tillage but not under no-tillage, and this may have been due to the negative effect of no-tillage on plant growth on the clay-loam soil at the experimental site. This study indicated that responses to Nod factors are affected by environmental conditions, and that Nod factors may be useful when applied to soybean grown under conventional tillage.
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Claims 7
Claim · model-written summary
Nod factor sprays increased soybean photosynthesis at the four fully expanded trifoliate leaves and full bloom stages under both tillage systems.
- Taxon
- soybean
Glycine maxt0 - Organ / stage
- four fully expanded trifoliate leaves and full bloom growth stagese0
- Treatment
- Spray application of Nod factorse0
- Outcome
- photosynthesise0
- Direction
- increasede0
- Setting
- no-tillage and conventional tillagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spray application of Nod factors increased photosynthesis at the four fully expanded trifoliate leaves and full bloom growth stages under no-tillage and conventional tillage”
t0“soybean”
Claim · model-written summary
Nod factor sprays increased soybean plant biomass at the beginning seed filling stage.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- beginning seed filling stagee0
- Treatment
- Spray application of Nod factorse1
- Outcome
- plant biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“they increased plant biomass at the beginning seed filling stage”
e1“Spray application of Nod factors”
t0“soybean”
Claim · model-written summary
Nod factor treatment did not affect soybean yield in 2002 during severe reproductive-period drought.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Nod factor treatmente0
- Outcome
- yielde0
- Direction
- did not affecte0
- Qualifier
- severe drought during the reproductive periode0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nod factor treatment did not affect yield in 2002, due to severe drought during the reproductive period.”
t0“soybean”
Claim · model-written summary
Nod factor application increased soybean yield under conventional tillage in 2003.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Nod factor applicatione0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- In 2003e0
- Setting
- conventional tillagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2003, Nod factor application increased yield under conventional tillage but not under no-tillage”
t0“soybean”
Claim · model-written summary
Nod factor application did not increase soybean yield under no-tillage in 2003.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Nod factor applicatione0
- Outcome
- yielde0
- Direction
- note0
- Qualifier
- In 2003e0
- Setting
- no-tillagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2003, Nod factor application increased yield under conventional tillage but not under no-tillage”
t0“soybean”
Claim · model-written summary
The authors inferred that soybean responses to Nod factors depend on environmental conditions.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Nod factorse0
- Outcome
- responses to Nod factorse0
- Qualifier
- environmental conditionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“responses to Nod factors are affected by environmental conditions”
t0“soybean”
Claim · model-written summary
The authors suggested Nod factors may be useful for conventionally tilled soybean.
- Taxon
- soybeanGlycine maxe0
- Outcome
- Nod factors may be useful when applied to soybean grown under conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nod factors may be useful when applied to soybean grown under conventional tillage”
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See all 207 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.