Abstract
ABSTRACT The objective of the present study was to evaluate the effect of exogenous application of hydrogen peroxide on the emergence, growth and gas exchange of yellow passion fruit seedlings subjected to salt stress. The experiment was conducted in pots (Citropote®) under greenhouse conditions, in the municipality of Campina Grande, PB, Brazil. Treatments were distributed in a randomized block design, in a 4 x 4 factorial arrangement, with four levels of electrical conductivity of irrigation water (0.7, 1.4, 2.1 and 2.8 dS m-1) associated with four concentrations of hydrogen peroxide (0, 25, 50 and 75 μM), with four replicates and two plants per plot. Irrigation using water with electrical conductivity above 0.7 dS m-1 negatively affects the emergence and growth of passion fruit. Hydrogen peroxide concentrations between 10 and 30 μM induce the acclimation of passion fruit plants to salt stress, mitigating the deleterious effects of salinity on the relative growth rate in stem diameter and leaf area, stomatal conductance, transpiration, CO2 assimilation rate and instantaneous carboxylation efficiency. Irrigation water salinity combined with hydrogen peroxide concentrations above 30 μM causes reduction in passion fruit growth and physiology.
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Claims 5
Claim · model-written summary
Irrigation water above 0.7 dS m-1 negatively affects the emergence and growth of passion fruit.
- Taxon
- passion fruit
Passiflora edulise1 - Treatment
- Irrigation using water with electrical conductivity above 0.7 dS m-1e1
- Outcome
- emergence and growthe1
- Direction
- negatively affectse1
- Comparator
- 0.7 dS m-1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Irrigation using water with electrical conductivity above 0.7 dS m-1 negatively affects the emergence and growth of passion fruit”
Claim · model-written summary
Hydrogen peroxide between 10 and 30 μM mitigates the salinity effect on relative growth rate in stem diameter and leaf area.
- Taxon
- passion fruitPassiflora edulise2
- Treatment
- Hydrogen peroxide concentrations between 10 and 30 μMe2
- Outcome
- relative growth rate in stem diameter and leaf areae2
- Direction
- mitigatinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Hydrogen peroxide concentrations between 10 and 30 μM induce the acclimation of passion fruit plants to salt stress, mitigating the deleterious effects of salinity on the relative growth rate in stem diameter and leaf area, stomatal conductance, transpiration, CO2 assimilation rate and instantaneous carboxylation efficiency”
Claim · model-written summary
Hydrogen peroxide between 10 and 30 μM mitigates the salinity effect on stomatal conductance, transpiration and CO2 assimilation rate.
- Taxon
- passion fruitPassiflora edulise2
- Treatment
- Hydrogen peroxide concentrations between 10 and 30 μMe2
- Outcome
- stomatal conductance, transpiration, CO2 assimilation ratee2
- Direction
- mitigatinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Hydrogen peroxide concentrations between 10 and 30 μM induce the acclimation of passion fruit plants to salt stress, mitigating the deleterious effects of salinity on the relative growth rate in stem diameter and leaf area, stomatal conductance, transpiration, CO2 assimilation rate and instantaneous carboxylation efficiency”
Claim · model-written summary
Hydrogen peroxide between 10 and 30 μM mitigates the salinity effect on instantaneous carboxylation efficiency.
- Taxon
- passion fruitPassiflora edulise2
- Treatment
- Hydrogen peroxide concentrations between 10 and 30 μMe2
- Outcome
- instantaneous carboxylation efficiencye2
- Direction
- mitigatinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Hydrogen peroxide concentrations between 10 and 30 μM induce the acclimation of passion fruit plants to salt stress, mitigating the deleterious effects of salinity on the relative growth rate in stem diameter and leaf area, stomatal conductance, transpiration, CO2 assimilation rate and instantaneous carboxylation efficiency”
Claim · model-written summary
Hydrogen peroxide above 30 μM combined with salinity reduces passion fruit growth and physiology.
- Taxon
- passion fruitPassiflora edulise3
- Treatment
- Irrigation water salinity combined with hydrogen peroxide concentrations above 30 μMe3
- Outcome
- growth and physiologye3
- Direction
- reductione3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Irrigation water salinity combined with hydrogen peroxide concentrations above 30 μM causes reduction in passion fruit growth and physiology”
The same questions in other papers
hydrogen peroxide · growth · Passiflora edulis (passion fruit)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
2 papers more in this group
See all 6 papers →hydrogen peroxide · physiology: photosynthesis · Passiflora edulis (passion fruit)Results agree
1 paper in the same direction as this paper
- positive
irrigation · growth · Passiflora edulis (passion fruit)Positive and negative results
6 papers in the same direction as this paper · 2 in the opposite direction
- negative
- positive
- positive
5 papers more in this group
See all 9 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.