Paper · 2023 · Ciência e Agrotecnologia

Does soil cultivation practices and inoculation with Azospirillum brasilense affect the performance of maize genotypes?

Marcelo Henrique Santos; Wagner Emerson Aguiar; Eliane Cristina Gruszka Vendruscolo; et al.

6
claims
12
verbatim quotes
1
citations
3
research areas
✓
Open access · cc-by

Abstract

ABSTRACT One of the bottlenecks for maize (Zea mays L.) production is the need for a large supply of nitrogen fertilizers, which burdens farmers. A solution to this problem is the use of proteobacteria Azospirillum brasilense as an inoculant. However, experimental results regarding this inoculant vary depending, for instance, on the soil cultivation practices used. The objective of this study was to evaluate the influence of inoculation with Azospirillum brasilense on morphophysiological characters and yield characteristics of three maize genotypes in two off-season cultivated in no-tillage system (NT). Fallow soil (FS) was used as control. The results showed that soil cultivation had a significant effect on morphophysiological and productivity parameters compared to inoculation with Azospirillum brasilense. There were no distinct morphophysiological differences among the treatments. FS (inoculated or not) was more closely related to productivity parameters (grain yield-YI, weight of 100 seeds-100SW, plant height-PH and number of leaves-NL) than NT in both off-seasons. Among the hybrids, Dekalb 255 PRO3 (DKB 255) showed the highest YI and 100SW. Thus, this hybrid was considered well-adapted to off-seasons in western Paraná, Brazil. The inoculation effect was practically null and did not influence the estimated productivity of the different chosen hybrids.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 6

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Soil cultivation significantly affected maize morphophysiological and productivity parameters more than inoculation.

Taxon
maizeZea mayst0
Treatment
soil cultivatione0
Interactor
Azospirillum brasilenseAzospirillum brasilensee0symbiont
Outcome
morphophysiological and productivity parameterse0
Comparator
inoculation with Azospirillum brasilensee0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗
Azospirillum brasilense
Azospirillum brasilense · InteractorCristiane Colodel · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“soil cultivation had a significant effect on morphophysiological and productivity parameters compared to inoculation with Azospirillum brasilense”

✓ located verbatim in the source · abstract, characters 673–818 · show in text ↑
t0

“maize genotypes”

✓ located verbatim in the source · title, characters 103–118 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Morphophysiological traits showed no distinct differences among treatments.

Taxon
maizeZea mayst0
Outcome
morphophysiological differencese0
Direction
no distincte0
Comparator
among the treatmentse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“There were no distinct morphophysiological differences among the treatments.”

✓ located verbatim in the source · abstract, characters 820–896 · show in text ↑
t0

“maize genotypes”

✓ located verbatim in the source · title, characters 103–118 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Fallow soil was more closely related to productivity parameters than no tillage in both off seasons.

Taxon
maizeZea mayst0
Treatment
FS (inoculated or not)e0
Outcome
productivity parameterse0
Direction
more closely relatede0
Qualifier
in both off-seasonse0
Comparator
NTe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“FS (inoculated or not) was more closely related to productivity parameters (grain yield-YI, weight of 100 seeds-100SW, plant height-PH and number of leaves-NL) than NT in both off-seasons.”

✓ located verbatim in the source · abstract, characters 897–1085 · show in text ↑
t0

“maize genotypes”

✓ located verbatim in the source · title, characters 103–118 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Dekalb 255 PRO3 had the highest grain yield and 100 seed weight among hybrids.

Taxon
maizeZea mayst0
Material
Dekalb 255 PRO3e0
Outcome
YI and 100SWe0
Direction
higheste0
Comparator
the hybridse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the hybrids, Dekalb 255 PRO3 (DKB 255) showed the highest YI and 100SW.”

✓ located verbatim in the source · abstract, characters 1086–1163 · show in text ↑
t0

“maize genotypes”

✓ located verbatim in the source · title, characters 103–118 · show in text ↑
Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Dekalb 255 PRO3 was considered well adapted to the off seasons in western Paraná.

Taxon
maizeZea mayst0
Outcome
well-adaptede0
Setting
western Paraná, Brazile0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“this hybrid was considered well-adapted to off-seasons in western Paraná, Brazil.”

✓ located verbatim in the source · abstract, characters 1170–1251 · show in text ↑
t0

“maize genotypes”

✓ located verbatim in the source · title, characters 103–118 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Inoculation had practically no effect on estimated productivity of the hybrids.

Taxon
maizeZea mayst0
Treatment
inoculatione0
Outcome
estimated productivitye0
Direction
did not influencee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The inoculation effect was practically null and did not influence the estimated productivity of the different chosen hybrids.”

✓ located verbatim in the source · abstract, characters 1252–1377 · show in text ↑
t0

“maize genotypes”

✓ located verbatim in the source · title, characters 103–118 · show in text ↑

inoculation · yield · Zea mays (maize)Positive and negative results

538 papers: 479 positive, 59 negative or no effect

58 papers in the same direction as this paper · 479 in the opposite direction

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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.