Abstract
The biological nitrogen fixation (FBN) associated with maize culture becomes extremely important, even if only part of the need for N by culture may be supplied by this process. The aim of this study was to verify the behavior of three maize hybrids to inoculation of Herbaspirillum seropedicae under different nitrogen levels. The test was conducted under controlled conditions of greenhouse and the experimental design was completely randomized design adopted in factorial scheme 3 (hybrid corn) × 2 (plants inoculated and non-inoculated) × 2 (levels nitrogen), with four replicates. Plant height, stem diameter, chlorophyll content, length root, volume of root, content N in shoot and root were determined for 35 days after emergence, as well as the efficiency of use of N. The hybrid BRS 3035 stands out for most of the variables analyzed, producing most of the shoot dry mass, plants with greater height, diameter of stem, root volume and showing the highest rates of N use efficiency. The H. seropedicae was inoculated with promoted increase in the volume of root, root length, dry weight of shoot, chlorophyll content, content of N in aboveground and N use efficiency. Inoculation strain Z-94 of H. seropedicae plus 80 kg ha-1 de N increased the concentration of N in the aerial part of plants of corn by as much as 25% in the evaluated genotypes. Key words: Inoculants, diazotrophic bacteria, nutrition, biological nitrogen fixation.
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Claims 4
Claim · model-written summary
BRS 3035 had the most shoot dry mass, greater height and stem diameter and root volume, and highest N-use efficiency.
- Taxon
- plantsViridiplantaee0
- Material
- BRS 3035e0
- Outcome
- shoot dry mass, plants with greater height, diameter of stem, root volume and showing the highest rates of N use efficiencye0
- Direction
- higheste0
Verbatim
e0“The hybrid BRS 3035 stands out for most of the variables analyzed, producing most of the shoot dry mass, plants with greater height, diameter of stem, root volume and showing the highest rates of N use efficiency.”
Claim · model-written summary
H. seropedicae inoculation increased root volume and length and shoot dry weight.
- Treatment
- H. seropedicae was inoculatede0
- Interactor
- H. seropedicaeHerbaspirillum seropedicaee0symbiont
- Outcome
- volume of root, root length, dry weight of shoote0
- Direction
- increasee0
Not reportedTaxonComparator
Verbatim
e0“The H. seropedicae was inoculated with promoted increase in the volume of root, root length, dry weight of shoot”
Claim · model-written summary
H. seropedicae inoculation increased chlorophyll content, aboveground N content and N-use efficiency.
- Outcome
- chlorophyll content, content of N in aboveground and N use efficiencye0
Not reportedTaxonTreatmentComparatorDirection
Verbatim
e0“chlorophyll content, content of N in aboveground and N use efficiency”
Claim · model-written summary
Strain Z-94 plus nitrogen increased aerial N concentration by up to 25%.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- Inoculation strain Z-94 of H. seropedicae plus 80 kg ha-1 de Ne0
- Interactor
- H. seropedicaeHerbaspirillum seropedicaee0symbiont
- Outcome
- concentration of N in the aerial parte0
- Direction
- increasede0
- Value
- 25%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation strain Z-94 of H. seropedicae plus 80 kg ha-1 de N increased the concentration of N in the aerial part of plants of corn by as much as 25%”
The same questions in other papers
Herbaspirillum seropedicae · molecular: metabolites · Zea mays (maize)Results agree
2 papers in the same direction as this paper
- positive
- positive
inoculation · molecular: metabolites · Zea mays (maize)Positive and negative results
116 papers in the same direction as this paper · 11 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
125 papers more in this group
See all 129 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.