Abstract
Abstract The yield response of a wheat (Kirik) and a barley (Tokak 157/37) cultivar to inoculation with Azospirillum brasilense Sp246 and Bacillus sp. OSU‐142 was studied in relation to three levels of N fertilization (0, 40, and 80 kg ha –1 ) under field conditions in Erzurum, Turkey, in 1999 and 2000. Seed inoculation with A. brasilense Sp246 significantly affected yield and yield components, both in wheat and barley. On average of years and N doses, inoculation with A. brasilense Sp246 increased spike number per m 2 , grain number per spike, grain yield, and crude protein content by 7.2, 5.9, 14.7, and 4.1 % in wheat and by 6.6, 8.1, 17.5, and 5.1 % in barley, respectively, as compared to control. Inoculation with Bacillus sp. OSU‐142 significantly increased kernel number per spike in wheat, but no significant effect was determined in the other characteristics. Grain yields and yield components were also higher at all levels of nitrogen fertilizer in the inoculated plots as compared to the control. However, these increases diminished at high fertilizer levels. These results suggest that application of the growth promoting bacteria A. brasilense Sp246 may have the potential to be used as a biofertilizer for spring wheat and barley cultivation in organic and low‐N input agriculture.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 14
Claim · model-written summary
Seed inoculation with A. brasilense Sp246 increased spike number per m 2 in wheat by 7.2 relative to control, averaged over years and N doses.
- Taxon
- wheat
Triticum aestivume2 - Material
- Kirike1
- Treatment
- inoculation with A. brasilense Sp246e2
- Interactor
- A. brasilense Sp246
Azospirillum brasilensee2symbiont - Outcome
- spike number per m 2e2
- Direction
- increasede2
- Value
- 7.2e2
- Qualifier
- On average of years and N dosese2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“wheat (Kirik)”
e2“On average of years and N doses, inoculation with A. brasilense Sp246 increased spike number per m 2 , grain number per spike, grain yield, and crude protein content by 7.2, 5.9, 14.7, and 4.1 % in wheat and by 6.6, 8.1, 17.5, and 5.1 % in barley, respectively, as compared to control”
Claim · model-written summary
Seed inoculation with A. brasilense Sp246 increased grain number per spike in wheat by 5.9 relative to control, averaged over years and N doses.
- Taxon
- wheatTriticum aestivume2
- Material
- Kirike1
- Treatment
- inoculation with A. brasilense Sp246e2
- Interactor
- A. brasilense Sp246Azospirillum brasilensee2symbiont
- Outcome
- grain number per spikee2
- Direction
- increasede2
- Value
- 5.9e2
- Qualifier
- On average of years and N dosese2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“wheat (Kirik)”
e2“On average of years and N doses, inoculation with A. brasilense Sp246 increased spike number per m 2 , grain number per spike, grain yield, and crude protein content by 7.2, 5.9, 14.7, and 4.1 % in wheat and by 6.6, 8.1, 17.5, and 5.1 % in barley, respectively, as compared to control”
Claim · model-written summary
Seed inoculation with A. brasilense Sp246 increased grain yield in wheat by 14.7 relative to control, averaged over years and N doses.
- Taxon
- wheatTriticum aestivume2
- Material
- Kirike1
- Treatment
- inoculation with A. brasilense Sp246e2
- Interactor
- A. brasilense Sp246Azospirillum brasilensee2symbiont
- Outcome
- grain yielde2
- Direction
- increasede2
- Value
- 14.7e2
- Qualifier
- On average of years and N dosese2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“wheat (Kirik)”
e2“On average of years and N doses, inoculation with A. brasilense Sp246 increased spike number per m 2 , grain number per spike, grain yield, and crude protein content by 7.2, 5.9, 14.7, and 4.1 % in wheat and by 6.6, 8.1, 17.5, and 5.1 % in barley, respectively, as compared to control”
Claim · model-written summary
Seed inoculation with A. brasilense Sp246 increased crude protein content in wheat by 4.1 % relative to control, averaged over years and N doses.
- Taxon
- wheatTriticum aestivume2
- Material
- Kirike1
- Treatment
- inoculation with A. brasilense Sp246e2
- Interactor
- A. brasilense Sp246Azospirillum brasilensee2symbiont
- Outcome
- crude protein contente2
- Direction
- increasede2
- Value
- 4.1 %e2
- Qualifier
- On average of years and N dosese2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“wheat (Kirik)”
e2“On average of years and N doses, inoculation with A. brasilense Sp246 increased spike number per m 2 , grain number per spike, grain yield, and crude protein content by 7.2, 5.9, 14.7, and 4.1 % in wheat and by 6.6, 8.1, 17.5, and 5.1 % in barley, respectively, as compared to control”
Claim · model-written summary
Seed inoculation with A. brasilense Sp246 increased spike number per m 2 in barley by 6.6 relative to control, averaged over years and N doses.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree2 - Material
- Tokak 157/37e1
- Treatment
- inoculation with A. brasilense Sp246e2
- Interactor
- A. brasilense Sp246Azospirillum brasilensee2symbiont
- Outcome
- spike number per m 2e2
- Direction
- increasede2
- Value
- 6.6e2
- Qualifier
- On average of years and N dosese2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“barley (Tokak 157/37)”
e2“On average of years and N doses, inoculation with A. brasilense Sp246 increased spike number per m 2 , grain number per spike, grain yield, and crude protein content by 7.2, 5.9, 14.7, and 4.1 % in wheat and by 6.6, 8.1, 17.5, and 5.1 % in barley, respectively, as compared to control”
Claim · model-written summary
Seed inoculation with A. brasilense Sp246 increased grain number per spike in barley by 8.1 relative to control, averaged over years and N doses.
- Taxon
- barleyHordeum vulgaree2
- Material
- Tokak 157/37e1
- Treatment
- inoculation with A. brasilense Sp246e2
- Interactor
- A. brasilense Sp246Azospirillum brasilensee2symbiont
- Outcome
- grain number per spikee2
- Direction
- increasede2
- Value
- 8.1e2
- Qualifier
- On average of years and N dosese2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“barley (Tokak 157/37)”
e2“On average of years and N doses, inoculation with A. brasilense Sp246 increased spike number per m 2 , grain number per spike, grain yield, and crude protein content by 7.2, 5.9, 14.7, and 4.1 % in wheat and by 6.6, 8.1, 17.5, and 5.1 % in barley, respectively, as compared to control”
Claim · model-written summary
Seed inoculation with A. brasilense Sp246 increased grain yield in barley by 17.5 relative to control, averaged over years and N doses.
- Taxon
- barleyHordeum vulgaree2
- Material
- Tokak 157/37e1
- Treatment
- inoculation with A. brasilense Sp246e2
- Interactor
- A. brasilense Sp246Azospirillum brasilensee2symbiont
- Outcome
- grain yielde2
- Direction
- increasede2
- Value
- 17.5e2
- Qualifier
- On average of years and N dosese2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“barley (Tokak 157/37)”
e2“On average of years and N doses, inoculation with A. brasilense Sp246 increased spike number per m 2 , grain number per spike, grain yield, and crude protein content by 7.2, 5.9, 14.7, and 4.1 % in wheat and by 6.6, 8.1, 17.5, and 5.1 % in barley, respectively, as compared to control”
Claim · model-written summary
Seed inoculation with A. brasilense Sp246 increased crude protein content in barley by 5.1 % relative to control, averaged over years and N doses.
- Taxon
- barleyHordeum vulgaree2
- Material
- Tokak 157/37e1
- Treatment
- inoculation with A. brasilense Sp246e2
- Interactor
- A. brasilense Sp246Azospirillum brasilensee2symbiont
- Outcome
- crude protein contente2
- Direction
- increasede2
- Value
- 5.1 %e2
- Qualifier
- On average of years and N dosese2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“barley (Tokak 157/37)”
e2“On average of years and N doses, inoculation with A. brasilense Sp246 increased spike number per m 2 , grain number per spike, grain yield, and crude protein content by 7.2, 5.9, 14.7, and 4.1 % in wheat and by 6.6, 8.1, 17.5, and 5.1 % in barley, respectively, as compared to control”
Claim · model-written summary
Inoculation with Bacillus sp. OSU‐142 significantly increased kernel number per spike in wheat relative to control.
- Taxon
- wheatTriticum aestivume3
- Treatment
- Inoculation with Bacillus sp. OSU‐142e3
- Interactor
- Bacillus sp. OSU‐142e3symbiont
- Outcome
- kernel number per spikee3
- Direction
- increasede3
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Inoculation with Bacillus sp. OSU‐142 significantly increased kernel number per spike in wheat, but no significant effect was determined in the other characteristics”
e2“On average of years and N doses, inoculation with A. brasilense Sp246 increased spike number per m 2 , grain number per spike, grain yield, and crude protein content by 7.2, 5.9, 14.7, and 4.1 % in wheat and by 6.6, 8.1, 17.5, and 5.1 % in barley, respectively, as compared to control”
Claim · model-written summary
Inoculation with Bacillus sp. OSU‐142 had no significant effect on the other yield characteristics of wheat.
- Taxon
- wheatTriticum aestivume3
- Treatment
- Inoculation with Bacillus sp. OSU‐142e3
- Interactor
- Bacillus sp. OSU‐142e3symbiont
- Outcome
- other characteristicse3
- Direction
- no significant effecte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Inoculation with Bacillus sp. OSU‐142 significantly increased kernel number per spike in wheat, but no significant effect was determined in the other characteristics”
Claim · model-written summary
Grain yields and yield components were higher at all nitrogen levels in inoculated plots than in the control.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivumt0
- Treatment
- inoculated plotse5
- Outcome
- Grain yields and yield componentse5
- Direction
- highere5
- Qualifier
- at all levels of nitrogen fertilizere5
- Comparator
- controle5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat and barley”
e5“Grain yields and yield components were also higher at all levels of nitrogen fertilizer in the inoculated plots as compared to the control”
Claim · model-written summary
The inoculation-related increases in yield and yield components diminished at high fertilizer levels.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivumt0
- Treatment
- high fertilizer levelse6
- Outcome
- increasese6
- Direction
- diminishede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat and barley”
e6“these increases diminished at high fertilizer levels”
Claim · model-written summary
Seed inoculation with A. brasilense Sp246 significantly affected yield and yield components in wheat and barley.
- Taxon
- wheat and barleyHordeum vulgareTriticum aestivume4
- Treatment
- Seed inoculation with A. brasilense Sp246e4
- Interactor
- A. brasilense Sp246Azospirillum brasilensee4symbiont
- Outcome
- yield and yield componentse4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Seed inoculation with A. brasilense Sp246 significantly affected yield and yield components, both in wheat and barley”
Claim · model-written summary
Application of A. brasilense Sp246 may be used as a biofertilizer for spring wheat and barley cultivation in low-N input agriculture.
- Taxon
- spring wheat and barleyHordeum vulgareTriticum aestivume7
- Outcome
- potential to be used as a biofertilizere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“may have the potential to be used as a biofertilizer for spring wheat and barley cultivation”
The same questions in other papers
Azospirillum brasilense · yield · Triticum aestivum (wheat)Results differ
31 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- no effect
- no effect
32 papers more in this group
See all 36 papers →Azospirillum brasilense · quality: protein · Hordeum vulgare (barley)Results agree
1 paper in the same direction as this paper
- positive
Azospirillum brasilense · yield · Hordeum vulgare (barley)Results agree
2 papers in the same direction as this paper
- positive
- positive
Azospirillum brasilense · quality: protein · Triticum aestivum (wheat)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
inoculation · quality: protein · Hordeum vulgare (barley)Positive and negative results
10 papers in the same direction as this paper · 4 in the opposite direction
- positive
- negative
- negative
11 papers more in this group
See all 15 papers →inoculation · quality: protein · Triticum aestivum (wheat)Positive and negative results
56 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- negative
61 papers more in this group
See all 65 papers →inoculation · yield · Hordeum vulgare (barley)Positive and negative results
82 papers in the same direction as this paper · 17 in the opposite direction
- positive
- positive
- positive
96 papers more in this group
See all 100 papers →inoculation · yield · Triticum aestivum (wheat)Positive and negative results
548 papers in the same direction as this paper · 60 in the opposite direction · 5 reporting no difference from an alternative
- positive
- positive
- positive
610 papers more in this group
See all 614 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.