Abstract
ABSTRACT Although the semi-arid region of Northeast Brazil is a major producer of yellow passion fruit, the problems of salts in the soil and water sources, in many areas have limited the growth and production of this crop, which highlights the importance of studies aimed at reducing such effects. In this context, the objective of this study was to evaluate the effect of foliar application of pyruvate, as a mitigator of salt stress, on the morphophysiology of yellow passion fruit, in seedling phase. The treatments consisted of three electrical conductivities of irrigation water (ECw: 0.8, 2.4, and 4.0 dS m-1) and three concentrations of pyruvate (0, 25, and 50 mM), distributed in a randomized block experimental design in a 3 × 3 factorial scheme, with four replications and two plants per plot. Irrigation with ECw of 4.0 dS m-1 reduces growth variables, phytomass, Dickson quality index, and increases electrolyte leakage in passion fruit seedlings cv. Redondo Amarelo. Exogenous application of calcium pyruvate (25 and 50 mM) increased growth, phytomass, Dickson quality index, relative water content and leaf succulence and reduced electrolyte leakage in the leaf blade in passion fruit. Exogenous application of pyruvate attenuates salt stress, with beneficial effects on CO2 assimilation rate, transpiration, instantaneous carboxylation efficiency, intrinsic water use efficiency, and root dry mass.
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Claims 7
Claim · model-written summary
Irrigation at 4.0 dS m-1 reduced growth variables, phytomass and Dickson quality index in Redondo Amarelo passion fruit seedlings.
- Taxon
- passion fruit
Passiflora edulise1 - Material
- cv. Redondo Amareloe1
- Treatment
- Irrigation with ECw of 4.0 dS m-1e0
- Outcome
- growth variables, phytomass, Dickson quality indexe0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation with ECw of 4.0 dS m-1 reduces growth variables, phytomass, Dickson quality index”
e1“passion fruit seedlings cv. Redondo Amarelo”
Claim · model-written summary
Irrigation at 4.0 dS m-1 increased electrolyte leakage in Redondo Amarelo passion fruit seedlings.
- Taxon
- passion fruitPassiflora edulise0
- Material
- cv. Redondo Amareloe0
- Treatment
- Irrigation with ECw of 4.0 dS m-1e0
- Outcome
- electrolyte leakagee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation with ECw of 4.0 dS m-1 reduces growth variables, phytomass, Dickson quality index, and increases electrolyte leakage in passion fruit seedlings cv. Redondo Amarelo”
Claim · model-written summary
Calcium pyruvate at 25 and 50 mM increased growth, phytomass and Dickson quality index.
- Taxon
- yellow passion fruite1
- Treatment
- Exogenous application of calcium pyruvate (25 and 50 mM)e0
- Outcome
- growth, phytomass, Dickson quality indexe0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Exogenous application of calcium pyruvate (25 and 50 mM) increased growth, phytomass, Dickson quality index”
e1“yellow passion fruit seedlings”
Claim · model-written summary
Calcium pyruvate increased relative water content and leaf succulence.
- Taxon
- yellow passion fruite1
- Treatment
- Exogenous application of calcium pyruvate (25 and 50 mM)e0
- Outcome
- relative water content and leaf succulencee0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Exogenous application of calcium pyruvate (25 and 50 mM) increased growth, phytomass, Dickson quality index, relative water content and leaf succulence”
e1“yellow passion fruit seedlings”
Claim · model-written summary
Calcium pyruvate reduced electrolyte leakage in the leaf blade.
- Taxon
- passion fruitPassiflora edulise0
- Organ / stage
- leaf bladee0
- Treatment
- Exogenous application of calcium pyruvate (25 and 50 mM)e0
- Outcome
- electrolyte leakagee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exogenous application of calcium pyruvate (25 and 50 mM) increased growth, phytomass, Dickson quality index, relative water content and leaf succulence and reduced electrolyte leakage in the leaf blade in passion fruit”
Claim · model-written summary
Exogenous pyruvate mitigated salt stress, benefiting CO2 assimilation, transpiration and carboxylation efficiency.
- Taxon
- yellow passion fruitt0
- Treatment
- Exogenous application of pyruvatee0
- Outcome
- CO2 assimilation rate, transpiration, instantaneous carboxylation efficiencye0
Not reportedComparatorDirection
Verbatim
e0“Exogenous application of pyruvate attenuates salt stress, with beneficial effects on CO2 assimilation rate, transpiration, instantaneous carboxylation efficiency”
t0“yellow passion fruit seedlings”
Claim · model-written summary
Exogenous pyruvate benefited intrinsic water use efficiency and root dry mass under salt stress.
- Taxon
- yellow passion fruitt0
- Treatment
- Exogenous application of pyruvatee0
- Outcome
- intrinsic water use efficiency, and root dry masse0
Not reportedComparatorDirection
Verbatim
e0“Exogenous application of pyruvate attenuates salt stress, with beneficial effects on CO2 assimilation rate, transpiration, instantaneous carboxylation efficiency, intrinsic water use efficiency, and root dry mass”
t0“yellow passion fruit seedlings”
The same questions in other papers
irrigation · quality: general · Passiflora edulis (passion fruit)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
2 papers more in this group
See all 6 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.