Abstract
Core Ideas Cowpea did not require Bradyrhizobium inoculation for nodulation. Lablab required Bradyrhizobium inoculation for nodulation. Fungicide seed treatment did not compromise nodulation of cowpea or lablab. Cowpea [ Vigna unguiculata (L.) Walp.] and lablab ( Lablab purpureus L.) are grain legumes with limited testing for grain, forage, and cover crop use in the US Corn Belt. We conducted a 2‐year field study to determine the influence of Bradyrhizobium spp. inoculation and fungicide seed treatment on development, nodulation, and yield of selected grain legumes. Soybean [ Glycine max (L.) Merr.] was included as a well‐understood control. The experimental design was a randomized complete block in a factorial of four grain legumes with and without Bradyrhizobium spp. inoculation and a fungicide seed treatment. The cultivars used in the experiment were soybean P92Y82, cowpeas CA46 and Top Crop, and lablab Rongai. The seed treatments were fungicide, mefenoxam + fludioxonil (ApronMaxx), and Bradyrhizobium spp. inoculant. The two experimental sites had four blocks each year, every block consisting of 16 plots with different crop–fungicide– Bradyrhizobium combinations. Each crop had four treatments: fungicide only, Bradyrhizobium spp. inoculant only, fungicide + inoculant, and a control (with no fungicide or inoculant). Cowpea plants had numerous functional nodules (pinkish or reddish on the inside) in the absence of Bradyrhizobium spp. inoculation, but lablab never produced any nodules without inoculation. We found no significant effects of Bradyrhizobium spp. inoculation and fungicide seed treatment on cowpea, lablab, or soybean grain yield.
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Claims 10
Claim · model-written summary
Cowpea formed functional nodules without Bradyrhizobium inoculation.
- Taxon
- Cowpea
Vigna unguiculatae0 - Treatment
- absence of Bradyrhizobium spp. inoculatione0
- Interactor
- Bradyrhizobium spp.
Bradyrhizobiume0symbiont - Outcome
- numerous functional nodulese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cowpea plants had numerous functional nodules (pinkish or reddish on the inside) in the absence of Bradyrhizobium spp. inoculation”
Claim · model-written summary
Lablab produced no nodules without inoculation.
- Treatment
- without inoculatione0
- Interactor
- Bradyrhizobium spp.Bradyrhizobiume1symbiont
- Outcome
- never produced any nodulese0
LablabNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lablab never produced any nodules without inoculation”
e1“Bradyrhizobium spp. inoculation and fungicide seed treatment on development”
Claim · model-written summary
Fungicide seed treatment did not compromise cowpea nodulation.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- Fungicide seed treatmente0
- Outcome
- nodulatione0
- Direction
- did not compromisee0
- Comparator
- a controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungicide seed treatment did not compromise nodulation of cowpea or lablab”
e1“a control (with no fungicide or inoculant)”
Claim · model-written summary
Fungicide seed treatment did not compromise lablab nodulation.
- Treatment
- Fungicide seed treatmente0
- Outcome
- nodulatione0
- Direction
- did not compromisee0
- Comparator
- a controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungicide seed treatment did not compromise nodulation of cowpea or lablab”
e1“a control (with no fungicide or inoculant)”
Claim · model-written summary
Bradyrhizobium inoculation had no significant effect on cowpea grain yield.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- Bradyrhizobium spp. inoculatione0
- Interactor
- Bradyrhizobium spp.Bradyrhizobiume0symbiont
- Outcome
- grain yielde0
- Comparator
- a controle1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant effects of Bradyrhizobium spp. inoculation and fungicide seed treatment on cowpea, lablab, or soybean grain yield”
e1“a control (with no fungicide or inoculant)”
Claim · model-written summary
Bradyrhizobium inoculation had no significant effect on lablab grain yield.
- Treatment
- Bradyrhizobium spp. inoculatione0
- Interactor
- Bradyrhizobium spp.Bradyrhizobiume0symbiont
- Outcome
- grain yielde0
- Comparator
- a controle1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant effects of Bradyrhizobium spp. inoculation and fungicide seed treatment on cowpea, lablab, or soybean grain yield”
e1“a control (with no fungicide or inoculant)”
Claim · model-written summary
Bradyrhizobium inoculation had no significant effect on soybean grain yield.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Bradyrhizobium spp. inoculatione0
- Interactor
- Bradyrhizobium spp.Bradyrhizobiume0symbiont
- Outcome
- grain yielde0
- Comparator
- a controle1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant effects of Bradyrhizobium spp. inoculation and fungicide seed treatment on cowpea, lablab, or soybean grain yield”
e1“a control (with no fungicide or inoculant)”
Claim · model-written summary
Fungicide seed treatment had no significant effect on cowpea grain yield.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- fungicide seed treatmente0
- Outcome
- grain yielde0
- Comparator
- a controle1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant effects of Bradyrhizobium spp. inoculation and fungicide seed treatment on cowpea, lablab, or soybean grain yield”
e1“a control (with no fungicide or inoculant)”
Claim · model-written summary
Fungicide seed treatment had no significant effect on lablab grain yield.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant effects of Bradyrhizobium spp. inoculation and fungicide seed treatment on cowpea, lablab, or soybean grain yield”
e1“a control (with no fungicide or inoculant)”
Claim · model-written summary
Fungicide seed treatment had no significant effect on soybean grain yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- fungicide seed treatmente0
- Outcome
- grain yielde0
- Comparator
- a controle1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant effects of Bradyrhizobium spp. inoculation and fungicide seed treatment on cowpea, lablab, or soybean grain yield”
e1“a control (with no fungicide or inoculant)”
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See all 168 papers →8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.