Abstract
ABSTRACT The study aimed to evaluate the mitigating effect of nitrogen (N) on the damages caused by irrigation water salinity, in the production of yellow passion fruit seedlings. A randomized block design in split plots was used, with five levels of irrigation water salinity (plot) (0.3, 1.0, 1.7, 2.4 and 3.1 dS m-1) and five doses of N fertilization (sub-plot) (180, 240, 300, 360 and 420 mg of N dm-3), with five replicates, totaling 125 experimental units, with one plant per plot. The seedlings were produced in 3.780 mL tubes, used as drainage lysimeter, which received a daily irrigation depth based on water balance. Growth and contents of chlorophyll and carotenoids were evaluated at 85 days after sowing. The increase in irrigation water salinity reduced stem diameter, plant height, number of leaves, chlorophyll a, chlorophyll b and total chlorophyll; increasing N doses also led to linear decline in stem diameter and plant height. Application of increasing doses of N did not attenuate the effect of salinity on growth and pigment contents.
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Claims 4
Claim · model-written summary
Increasing irrigation water salinity reduced stem diameter, plant height and number of leaves of yellow passion fruit seedlings.
- Taxon
- yellow passion fruite0
- Treatment
- increase in irrigation water salinitye1
- Outcome
- stem diameter, plant height, number of leavese1
- Direction
- reducede1
Not reportedComparator
Verbatim
e0“in the production of yellow passion fruit seedlings”
e1“The increase in irrigation water salinity reduced stem diameter, plant height, number of leaves, chlorophyll a, chlorophyll b and total chlorophyll”
Claim · model-written summary
Increasing irrigation water salinity reduced chlorophyll a, chlorophyll b and total chlorophyll in yellow passion fruit seedlings.
- Taxon
- yellow passion fruite0
- Treatment
- increase in irrigation water salinitye1
- Outcome
- chlorophyll a, chlorophyll b and total chlorophylle1
- Direction
- reducede1
Not reportedComparator
Verbatim
e0“in the production of yellow passion fruit seedlings”
e1“The increase in irrigation water salinity reduced stem diameter, plant height, number of leaves, chlorophyll a, chlorophyll b and total chlorophyll”
Claim · model-written summary
Increasing nitrogen doses led to a linear decline in stem diameter and plant height of yellow passion fruit seedlings.
- Taxon
- yellow passion fruite0
- Treatment
- increasing N dosese2
- Outcome
- stem diameter and plant heighte2
- Direction
- linear declinee2
Not reportedComparator
Verbatim
e0“in the production of yellow passion fruit seedlings”
e2“increasing N doses also led to linear decline in stem diameter and plant height”
Claim · model-written summary
Increasing nitrogen doses did not attenuate the effect of salinity on growth and pigment contents of yellow passion fruit seedlings.
- Taxon
- yellow passion fruite0
- Treatment
- Application of increasing doses of Ne3
- Outcome
- effect of salinity on growth and pigment contentse3
- Direction
- did not attenuatee3
Not reportedComparator
Verbatim
e0“in the production of yellow passion fruit seedlings”
e3“Application of increasing doses of N did not attenuate the effect of salinity on growth and pigment contents”
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