Abstract
ABSTRACT The Brazilian Northeast region suffers from some abiotic stresses that are responsible for the loss of agricultural production, such as long drought periods and high evapotranspiration, associated with the quality of the water, which induces the use of saline water as an alternative for the expansion of irrigated areas, and silicate fertilization contributes to reduce the effects of salinity under the Northeastern semi -arid conditions. The objective of this study was to evaluate the osmotic potential and physiological indices of yellow passion fruit seedlings under irrigation water salinity and silicate fertilization. The experiment was carried out under greenhouse conditions at the Federal University of Campina Grande, Pombal -PB, Brazil, in a randomized block design in a 5 x 5 factorial scheme, relative to five levels of electrical conductivity of irrigation water - ECw (0.3; 1.0; 1.7; 2.4 and 3.1 dS m-1) and five doses of silicate fertilization (0; 25; 50; 75 and 100 g silicon per plant) in four replicates and two plants per plot. The application of 50, 75 and 100 g silicon per plant reduced the osmotic potential in the leaf tissues of ‘Gigante Amarelo’ passion fruit plants. Water salinity lower than 1.3 dS m-1 resulted in an increase in chlorophyll b content; increase in carotenoid content was observed in plants subjected to silicon doses of 25 and 100 g per plant. Salinity levels above 1.1 dS m-1 compromised the performance of photosystem II of passion fruit plants when subjected to silicon doses.
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Claims 7
Claim · model-written summary
Silicon at 50 g per plant reduced leaf tissue osmotic potential.
- Taxon
- passion fruit
Passiflora edulise0 - Material
- ‘Gigante Amarelo’e0
- Organ / stage
- leaf tissuese0
- Treatment
- 50e0
- Outcome
- osmotic potentiale0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 50, 75 and 100 g silicon per plant reduced the osmotic potential in the leaf tissues of ‘Gigante Amarelo’ passion fruit plants.”
Claim · model-written summary
Silicon at 75 g per plant reduced leaf tissue osmotic potential.
- Taxon
- passion fruitPassiflora edulise0
- Material
- ‘Gigante Amarelo’e0
- Organ / stage
- leaf tissuese0
- Treatment
- 75 and 100 g silicon per plante0
- Outcome
- osmotic potentiale0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 50, 75 and 100 g silicon per plant reduced the osmotic potential in the leaf tissues of ‘Gigante Amarelo’ passion fruit plants.”
Claim · model-written summary
Silicon at 100 g per plant reduced leaf tissue osmotic potential.
- Taxon
- passion fruitPassiflora edulise0
- Material
- ‘Gigante Amarelo’e0
- Organ / stage
- leaf tissuese0
- Treatment
- 100 g silicon per plante0
- Outcome
- osmotic potentiale0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of 50, 75 and 100 g silicon per plant reduced the osmotic potential in the leaf tissues of ‘Gigante Amarelo’ passion fruit plants.”
Claim · model-written summary
Irrigation water salinity below 1.3 dS m-1 increased chlorophyll b content.
- Taxon
- PASSION FRUITPassiflora edulist0
- Treatment
- Water salinity lower than 1.3 dS m-1e0
- Outcome
- chlorophyll b contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water salinity lower than 1.3 dS m-1 resulted in an increase in chlorophyll b content”
t0“PASSION FRUIT”
Claim · model-written summary
A silicon dose of 25 g per plant increased carotenoid content.
- Taxon
- PASSION FRUITPassiflora edulist0
- Treatment
- silicon doses of 25 and 100 g per plante0
- Outcome
- carotenoid contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in carotenoid content was observed in plants subjected to silicon doses of 25 and 100 g per plant”
t0“PASSION FRUIT”
Claim · model-written summary
A silicon dose of 100 g per plant increased carotenoid content.
- Taxon
- PASSION FRUITPassiflora edulist0
- Treatment
- 100 g per plante0
- Outcome
- carotenoid contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in carotenoid content was observed in plants subjected to silicon doses of 25 and 100 g per plant”
t0“PASSION FRUIT”
Claim · model-written summary
Salinity above 1.1 dS m-1 compromised photosystem II performance under silicon doses.
- Taxon
- passion fruitPassiflora edulise0
- Treatment
- Salinity levels above 1.1 dS m-1e0
- Outcome
- performance of photosystem IIe0
- Direction
- compromisede0
- Qualifier
- when subjected to silicon dosese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salinity levels above 1.1 dS m-1 compromised the performance of photosystem II of passion fruit plants when subjected to silicon doses.”
The same questions in other papers
silicon atom · physiology: pigments · Passiflora edulis (passion fruit)Results agree
1 paper in the same direction as this paper
- positive
salinity · physiology: pigments · Passiflora edulis (passion fruit)Positive and negative results
1 in the opposite direction
- negative
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.