Abstract
This study was conducted to evaluate the gas exchange, growth, and quality of passion fruit cultivars under irrigation with waters of different salinity levels. The experiment was conducted in a greenhouse, in Pombal-PB, Brazil, using a randomized block design in a 5 ? 2 factorial arrangement, with five levels of electrical conductivity of irrigation water (0.3, 1.1, 1.9, 2.7, and 3.5 dS m-1) and two passion fruit cultivars (BRS Sol do Cerrado and Guinezinho), with three plants per plot and four replicates. The reduction in transpiration, intercellular CO2 concentration and CO2 assimilation rate in passion fruit plants grown with saline water was related to factors of stomatal and non-stomatal origin. Gas exchange and growth of passion fruit cultivars were negatively affected by water salinity from 0.3 dS m-1 at 75 days after sowing. Despite the reduction in the growth of the passion fruit cultivars, irrigation with water of up to 3.5 dS m-1 could be used to obtain seedlings with acceptable quality. Based on the relative yield of total dry phytomass, the passion fruit cultivars BRS Sol do Cerrado and Guinezinho were classified as moderately sensitive to water salinity during the seedling phase.
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Claims 5
Claim · model-written summary
Saline water reduced transpiration, intercellular CO2 concentration, and CO2 assimilation.
- Taxon
- passion fruit
Passiflora edulise0 - Treatment
- saline watere0
- Outcome
- transpiration, intercellular CO2 concentration and CO2 assimilation ratee0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduction in transpiration, intercellular CO2 concentration and CO2 assimilation rate in passion fruit plants grown with saline water”
Claim · model-written summary
Water salinity negatively affected gas exchange and growth from 0.3 dS m-1 at 75 days after sowing.
- Taxon
- passion fruitPassiflora edulise0
- Treatment
- water salinity from 0.3 dS m-1e0
- Outcome
- Gas exchange and growthe0
- Direction
- negatively affectede0
- Qualifier
- 75 days after sowinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gas exchange and growth of passion fruit cultivars were negatively affected by water salinity from 0.3 dS m-1 at 75 days after sowing”
Claim · model-written summary
Irrigation water up to 3.5 dS m-1 produced seedlings of acceptable quality despite reduced growth.
- Taxon
- passion fruitPassiflora edulise0
- Treatment
- irrigation with water of up to 3.5 dS m-1e0
- Outcome
- seedlings with acceptable qualitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the reduction in the growth of the passion fruit cultivars, irrigation with water of up to 3.5 dS m-1 could be used to obtain seedlings with acceptable quality”
Claim · model-written summary
BRS Sol do Cerrado was classified moderately sensitive to salinity during the seedling phase.
Not reportedDirection
Verbatim
e0“BRS Sol do Cerrado and Guinezinho were classified as moderately sensitive to water salinity during the seedling phase”
Claim · model-written summary
Guinezinho was classified moderately sensitive to salinity during the seedling phase.
Not reportedDirection
Verbatim
e0“BRS Sol do Cerrado and Guinezinho were classified as moderately sensitive to water salinity during the seedling phase”
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