Abstract
Mycorrhizal inoculants can contribute to the development of corn crops by improving crop productivity. In this sense, the objective of this study was to evaluate the effects of a mycorrhizal inoculant on the dynamics of root system growth, gas exchange, corn crop productivity, and microbial activity in the rhizospheric soil in a no-till area with different levels of available soil phosphorus. The experiment was conducted during the 2019/2020 and 2020/2021 growing seasons. At 75 days after plant emergence, root morphological parameters (total root length (cm), average root diameter (mm), root surface area (cm2), and root volume), shoot biomass production, P content in the plant shoots, gas exchange, and microbiological attributes of the rhizospheric soil of corn were evaluated. At the end of the cycle, corn grain yield was determined. A beneficial effect of AMF inoculation was observed on the root and shoot parameters regardless of soil P level. Under conditions of evenly distributed rainfall during the experiment (2019/2020 season), AMF inoculation contributed to a 90% increase in acid phosphatase activity and a 76% increase in microbial biomass carbon (C-BIO), independent of soil P level. In contrast, under water deficit conditions (2020/2021 season), AMF inoculation provided a 29% increase in grain yield. We concluded that introducing a commercial mycorrhizal inoculant in corn benefits root system morphological parameters and physiological traits, and favors the activity of enzymes related to increased P availability, contributing to increased crop productivity in a no-till system.
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Claims 4
Claim · model-written summary
AMF inoculation benefited corn root and shoot parameters regardless of soil P level.
- Taxon
- Corn Plants
Zea mays subsp. mayst0 - Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- root and shoot parameterse0
- Direction
- beneficial effecte0
- Qualifier
- regardless of soil P levele0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A beneficial effect of AMF inoculation was observed on the root and shoot parameters regardless of soil P level.”
t0“Corn Plants”
Claim · model-written summary
AMF inoculation increased rhizosphere acid phosphatase activity by 90% in the evenly rainy season.
- Taxon
- Corn PlantsZea mays subsp. mayst0
- Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- acid phosphatase activitye0
- Direction
- increasee0
- Value
- 90%e0
- Qualifier
- evenly distributed rainfalle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under conditions of evenly distributed rainfall during the experiment (2019/2020 season), AMF inoculation contributed to a 90% increase in acid phosphatase activity and a 76% increase in microbial biomass carbon (C-BIO), independent of soil P level.”
t0“Corn Plants”
Claim · model-written summary
AMF inoculation increased rhizosphere microbial biomass carbon by 76% in the evenly rainy season.
- Taxon
- Corn PlantsZea mays subsp. mayst0
- Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- microbial biomass carbon (C-BIO)e0
- Direction
- increasee0
- Value
- 76%e0
- Qualifier
- independent of soil P levele0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF inoculation contributed to a 90% increase in acid phosphatase activity and a 76% increase in microbial biomass carbon (C-BIO), independent of soil P level.”
t0“Corn Plants”
Claim · model-written summary
Under water deficit, AMF inoculation increased corn grain yield by 29%.
- Taxon
- Corn PlantsZea mays subsp. mayst0
- Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 29%e0
- Qualifier
- water deficit conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under water deficit conditions (2020/2021 season), AMF inoculation provided a 29% increase in grain yield.”
t0“Corn Plants”
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