Abstract
Guava is a popular Brazilian fruit that is widely produced in Northeastern Brazil, a region with water sources that commonly have high concentrations of salts. Thus, searching for techniques that allow the management of these waters is extremely important for the expansion of irrigated agriculture. In this context, salicylic acid is a phytohormone that can contribute to reducing the effects of salt stress on plants. Given the above, this study evaluated the effect of foliar application of salicylic acid at different concentrations in the mitigation of salt stress on gas exchange, growth, and quality of 'Paluma' guava seedlings. The experiment was conducted in a greenhouse, in Campina Grande - PB, Brazil, using a randomized block design in a 5 × 5 factorial arrangement, corresponding to five levels of electrical conductivity of water (0.6, 1.5, 2.4, 3.3, and 4.2 dS m-1) and five concentrations of salicylic acid (0 - Control; 0.8, 1.6, 2.4, and 3.2 mM), with four replicates and two plants per plot. Foliar application of salicylic acid at a concentration of up to 1.4 mM reduced the deleterious effects of salt stress on the instantaneous water use efficiency of 'Paluma' guava seedlings at 180 days after sowing. The concentrations of salicylic acid applied via foliar did not mitigate the harmful effects of irrigation water salinity on the growth and quality of 'Paluma' guava seedlings. Keywords: Abiotic stress, Psidium guajava L., water scarcity.
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Claims 2
Claim · model-written summary
Foliar salicylic acid up to 1.4 mM reduced salt stress damage to water use efficiency.
- Taxon
- guava
Psidium guajavae0 - Material
- 'Paluma'e0
- Organ / stage
- seedlingse0
- Treatment
- Foliar application of salicylic acid at a concentration of up to 1.4 mMe0
- Outcome
- instantaneous water use efficiencye0
- Direction
- reducede0
- Qualifier
- at 180 days after sowinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of salicylic acid at a concentration of up to 1.4 mM reduced the deleterious effects of salt stress on the instantaneous water use efficiency of 'Paluma' guava seedlings at 180 days after sowing.”
Claim · model-written summary
Foliar salicylic acid did not mitigate salinity damage to guava seedling growth and quality.
- Taxon
- guavaPsidium guajavae0
- Material
- 'Paluma'e0
- Organ / stage
- seedlingse0
- Treatment
- salicylic acid applied via foliare0
- Outcome
- growth and qualitye0
- Direction
- did not mitigatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentrations of salicylic acid applied via foliar did not mitigate the harmful effects of irrigation water salinity on the growth and quality of 'Paluma' guava seedlings.”
The same questions in other papers
salicylic acid · physiology: water · Psidium guajava (guava)Results agree
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salicylic acid · quality: general · Psidium guajava (guava)Results agree
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application · physiology: water · Psidium guajava (guava)Positive and negative results
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application · quality: general · Psidium guajava (guava)Positive and negative results
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- positive
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See all 8 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.