Abstract
ABSTRACT Yellow passion fruit is a fruit species widely cultivated throughout the Brazilian semi-arid territory, but its yield is affected by the quality of the waters of this region. In this context, the objective was to evaluate the gas exchange and production of passion fruit cv. BRS Rubi do Cerrado irrigated with waters of different cationic natures. The study was conducted in drainage lysimeters under greenhouse conditions in Campina Grande, PB, Brazil, in a randomized block design, and the treatments were eight cationic natures of irrigation water (S1 - Control; S2 - Na+; S3 - Ca2+; S4 - Mg2+; S5 - Na+ + Ca2+; S6 - Na+ + Mg2+; S7 - Ca2+ + Mg2+ and S8 - Na+ + Ca2+ + Mg2+) with three replicates. Plants in the control treatment were irrigated with water of low electrical conductivity (ECw = 0.4 dS m-1), while those of the other treatments were irrigated using water with ECw of 3.5 dS m-1. The treatments Na+ + Ca2+, Na+ + Mg2+ and Ca2+ + Mg2+ were prepared in the equivalent ratio of 1:1, and Na++Ca2++Mg2+ in the ratio 7:2:1, respectively. Water salinity of 3.5 dS m-1 reduced gas exchange, and stomatal conductance and transpiration were the most sensitive variables of passion fruit. The number of fruits of passion fruit cv. BRS Rubi do Cerrado decreased with water salinity, regardless of the cationic nature. The waters of calcic and calcic+magnesian nature caused the greatest deleterious effects on the production variables of passion fruit, at 259 days after transplanting.
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Claims 5
Claim · model-written summary
Water salinity of 3.5 dS m-1 reduced passion fruit gas exchange.
- Taxon
- passion fruit
Passiflora edulise0 - Treatment
- Water salinity of 3.5 dS m-1e0
- Outcome
- gas exchangee0
- Direction
- reducede0
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water salinity of 3.5 dS m-1 reduced gas exchange, and stomatal conductance and transpiration were the most sensitive variables of passion fruit.”
e1“Plants in the control treatment were irrigated with water of low electrical conductivity (ECw = 0.4 dS m-1)”
Claim · model-written summary
Stomatal conductance and transpiration were the most sensitive passion fruit gas exchange variables under saline irrigation.
- Taxon
- passion fruitPassiflora edulise0
- Outcome
- stomatal conductance and transpiratione0
- Direction
- most sensitivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stomatal conductance and transpiration were the most sensitive variables of passion fruit.”
Claim · model-written summary
The number of fruits of passion fruit cv. BRS Rubi do Cerrado decreased with water salinity regardless of cationic nature.
- Taxon
- passion fruitPassiflora edulise0
- Material
- BRS Rubi do Cerradoe0
- Treatment
- water salinitye0
- Outcome
- number of fruitse0
- Direction
- decreasede0
- Qualifier
- regardless of the cationic naturee0
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of fruits of passion fruit cv. BRS Rubi do Cerrado decreased with water salinity, regardless of the cationic nature.”
e1“Plants in the control treatment were irrigated with water of low electrical conductivity (ECw = 0.4 dS m-1)”
Claim · model-written summary
Calcic irrigation water caused the greatest deleterious effect on passion fruit production variables at 259 days after transplanting.
- Taxon
- passion fruitPassiflora edulise0
- Organ / stage
- 259 days after transplantinge0
- Treatment
- calcice0
- Outcome
- production variablese0
- Direction
- greatest deleterious effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The waters of calcic and calcic+magnesian nature caused the greatest deleterious effects on the production variables of passion fruit, at 259 days after transplanting.”
Claim · model-written summary
Calcic+magnesian irrigation water caused the greatest deleterious effect on passion fruit production variables at 259 days after transplanting.
- Taxon
- passion fruitPassiflora edulise0
- Organ / stage
- 259 days after transplantinge0
- Treatment
- calcic+magnesiane0
- Outcome
- production variablese0
- Direction
- greatest deleterious effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The waters of calcic and calcic+magnesian nature caused the greatest deleterious effects on the production variables of passion fruit, at 259 days after transplanting.”
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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.