Abstract
A field experiment was conducted during the 2005/6 growing season to assess the effect of Bradyrhizobium japonicum strains on the performance of soybean varieties. The field experiment was conducted at Bako ATVET College, West Shoa, Ethiopia. Three varieties of soybean (Jalele, Cheri, and Ethio-Yugoslavia) and two strains of Bradyrhizobium japonicum (TAL 378 and TAL 379) along with one uninoculated treatment were laid out in a randomized complete block design with nine variety and strain combinations and three replications. Inoculated and uninoculated seeds of soybean were planted on prepared beds. All the nodulation parameters, namely, nodulation rating, nodule number per plant, nodule volume per plant, and nodule dry weight were significantly influenced by the main effect of Bradyrhizobium japonicum strains alone. The main effect of soybean variety did not affect these parameters significantly. The dry matter production and nitrogen uptake at midflowering were highly significantly () affected by the main effects of both variety and strain. The yield and the yield components such as number of pods per plant, number of seeds per pod, seed yield, thousand seed weight, above-ground dry biomass, and total nitrogen uptake were highly significantly () affected by inoculation of Bradyrhizobium strains alone. A yield increase of 53.2% was obtained due to inoculation of TAL 379 over the uninoculated control. The variety effect was also significant () on number of pods per plant, seed yield, thousand seed weight, harvest index, and total nitrogen uptake. Variety and Bradyrhizobium strain interaction was detected on number of nodules per plant and nodule dry weight.
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Claims 8
Claim · model-written summary
Bradyrhizobium strains significantly affected four nodulation parameters.
- Taxon
- soybean
Glycine maxt0 - Treatment
- Bradyrhizobium japonicum strainse0
- Interactor
- Bradyrhizobium japonicum
Bradyrhizobium japonicume0symbiont - Outcome
- nodulation rating, nodule number per plant, nodule volume per plant, and nodule dry weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the nodulation parameters, namely, nodulation rating, nodule number per plant, nodule volume per plant, and nodule dry weight were significantly influenced by the main effect of Bradyrhizobium japonicum strains alone”
t0“Soybean (Glycine max L. Merill)”
Claim · model-written summary
Soybean variety had no significant effect on nodulation parameters.
- Taxon
- soybeanGlycine maxe0
- Material
- soybean varietye0
- Outcome
- these parameterse0
- Direction
- did not affecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main effect of soybean variety did not affect these parameters significantly”
Claim · model-written summary
Variety significantly affected dry matter production and nitrogen uptake at midflowering.
- Taxon
- soybeanGlycine maxt0
- Material
- varietye0
- Organ / stage
- midfloweringe0
- Outcome
- dry matter production and nitrogen uptakee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dry matter production and nitrogen uptake at midflowering were highly significantly () affected by the main effects of both variety and strain”
t0“Soybean (Glycine max L. Merill)”
Claim · model-written summary
Bradyrhizobium strain significantly affected dry matter production and nitrogen uptake at midflowering.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- midfloweringe0
- Treatment
- straine0
- Interactor
- straine0symbiont
- Outcome
- dry matter production and nitrogen uptakee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dry matter production and nitrogen uptake at midflowering were highly significantly () affected by the main effects of both variety and strain”
t0“Soybean (Glycine max L. Merill)”
Claim · model-written summary
Bradyrhizobium inoculation significantly affected six yield and uptake measures.
- Taxon
- soybeanGlycine maxt0
- Treatment
- inoculation of Bradyrhizobium strainse0
- Interactor
- BradyrhizobiumBradyrhizobiume0symbiont
- Outcome
- number of pods per plant, number of seeds per pod, seed yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield and the yield components such as number of pods per plant, number of seeds per pod, seed yield, thousand seed weight, above-ground dry biomass, and total nitrogen uptake were highly significantly () affected by inoculation of Bradyrhizobium strains alone”
t0“Soybean (Glycine max L. Merill)”
Claim · model-written summary
TAL 379 inoculation raised yield 53.2% over uninoculated control.
- Taxon
- soybeanGlycine maxt0
- Treatment
- inoculation of TAL 379e0
- Interactor
- TAL 379e0symbiont
- Outcome
- yielde0
- Direction
- increasee0
- Value
- 53.2%e0
- Comparator
- uninoculated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A yield increase of 53.2% was obtained due to inoculation of TAL 379 over the uninoculated control”
t0“Soybean (Glycine max L. Merill)”
Claim · model-written summary
Variety significantly affected pods, yield, seed weight, harvest index and N uptake.
- Taxon
- soybeanGlycine maxt0
- Material
- varietye0
- Outcome
- number of pods per plant, seed yield, thousand seed weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The variety effect was also significant () on number of pods per plant, seed yield, thousand seed weight, harvest index, and total nitrogen uptake”
t0“Soybean (Glycine max L. Merill)”
Claim · model-written summary
Variety and strain interacted in effects on nodule number and dry weight.
- Taxon
- soybeanGlycine maxt0
- Material
- Varietye0
- Interactor
- BradyrhizobiumBradyrhizobiume0symbiont
- Outcome
- number of nodules per plant and nodule dry weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Variety and Bradyrhizobium strain interaction was detected on number of nodules per plant and nodule dry weight”
t0“Soybean (Glycine max L. Merill)”
The same questions in other papers
inoculation · yield · Glycine max (soybean)Positive and negative results
490 papers in the same direction as this paper · 63 in the opposite direction · 12 reporting no difference from an alternative
- no effect
- no effect
- no effect
562 papers more in this group
See all 566 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.