Abstract
ABSTRACT This study aimed to evaluate the effect of physiological priming with salicylic acid on the mitigation of water and salt stresses on onion (Allium cepa L.) seeds. For this, seeds of onion, cultivar IPA 11, were soaked in salicylic acid solution (50 µM) for 24 h and placed to germinate at different water and saline potentials. For water stress, the experiment was conducted in a completely randomized design, in a 2 x 5 factorial scheme (salicylic acid with 0 and 50 µM and osmotic potentials of 0, -0.1, -0.2, -0.3, -0.4 MPa induced by polyethylene glycol 6000), with four repetitions of 50 seeds per plot. In salt stress, the adopted experimental design was completely randomized, with treatments distributed in a 2 x 4 factorial scheme (salicylic acid at concentrations of 0 and 50 µM and the osmotic potentials of 0, -0.3, -0.6 and -0.9 MPa induced by NaCl), in four repetitions of 50 seeds. For both experiments, germination, growth and accumulation of organic solutes were evaluated. Salicylic acid did not stimulate the germination of onion seeds in the absence of stress, but the application of 50 µM of salicylic acid increased the germination speed, growth and dry matter accumulation under conditions of water and salt stress. Onion plants were efficient in performing osmotic adjustment up to the potentials of -0.2 MPa induced by PEG 6000 under water stress and of -0.4 MPa induced by NaCl under salt stress.
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Claims 4
Claim · model-written summary
Salicylic acid did not stimulate onion seed germination in the absence of stress.
- Taxon
- onion
Allium cepae1 - Treatment
- Salicylic acide1
- Outcome
- germination of onion seedse1
- Direction
- did not stimulatee1
- Qualifier
- in the absence of stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Salicylic acid did not stimulate the germination of onion seeds in the absence of stress”
Claim · model-written summary
Application of 50 µM salicylic acid increased germination speed, growth and dry matter accumulation of onion under water and salt stress.
- Taxon
- onionAllium cepae0
- Treatment
- application of 50 µM of salicylic acide2
- Outcome
- germination speed, growth and dry matter accumulatione2
- Direction
- increasede2
- Qualifier
- under conditions of water and salt stresse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study aimed to evaluate the effect of physiological priming with salicylic acid on the mitigation of water and salt stresses on onion (Allium cepa L.) seeds”
e2“the application of 50 µM of salicylic acid increased the germination speed, growth and dry matter accumulation under conditions of water and salt stress”
Claim · model-written summary
Onion plants performed osmotic adjustment up to -0.2 MPa induced by PEG 6000 under water stress.
- Taxon
- OnionAllium cepae3
- Outcome
- osmotic adjustmente3
- Value
- -0.2 MPae3
- Qualifier
- induced by PEG 6000 under water stresse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Onion plants were efficient in performing osmotic adjustment up to the potentials of -0.2 MPa induced by PEG 6000 under water stress and of -0.4 MPa induced by NaCl under salt stress”
Claim · model-written summary
Onion plants performed osmotic adjustment up to -0.4 MPa induced by NaCl under salt stress.
- Taxon
- OnionAllium cepae3
- Outcome
- osmotic adjustmente3
- Value
- -0.4 MPae3
- Qualifier
- induced by NaCl under salt stresse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Onion plants were efficient in performing osmotic adjustment up to the potentials of -0.2 MPa induced by PEG 6000 under water stress and of -0.4 MPa induced by NaCl under salt stress”
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See all 13 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.