Abstract
The water content reached by seeds during priming treatments depends on the incubation conditions and seldom is this variable considered when analyzing the degree of success obtained by this treatment. The objectives of this investigation were to study the kinetics of imbibition of cotton seeds in water and in polyethylene glycol and to evaluate the effectiveness of the different treatments based upon the osmoticum used and the water content achieved by the seeds. Curves of imbibition in water and in polyethylene glycol -0.8 and -2.2 MPa were determined. Based on these curves, the durations of priming in water and in both concentrations of polyethylene glycol that achivied the same water content (7, 20, 30 and 40%) were selected for further treatments. Seed germination in water and under water stress (polyethylene glycol -0.8 MPa) was evaluated at 25°C and 16 h photoperiod. Hydropriming did not affect germination in water or under water stress. Osmotic priming reduced germination in both instances by increasing the length of the treatment and the concentration of osmoticum used. The inhibition produced by osmotic priming was more marked under water stress. For cotton seeds, osmotic priming with polyethylene glycol is not to be recommended and the effectiveness of the treatments does not depend exclusively on the priming water content.
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Claims 5
Claim · model-written summary
Hydropriming did not affect cotton seed germination in water or under water stress.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- Hydropriminge1
- Outcome
- germinatione1
- Direction
- no_changeinferrede1
- Qualifier
- under water stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“priming of cotton seeds”
e1“Hydropriming did not affect germination in water or under water stress”
Claim · model-written summary
Osmotic priming with polyethylene glycol reduced cotton seed germination.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Osmotic priminge2
- Outcome
- germinatione2
- Direction
- reducede2
- Qualifier
- by increasing the length of the treatment and the concentration of osmoticum usede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“priming of cotton seeds”
e2“Osmotic priming reduced germination in both instances by increasing the length of the treatment and the concentration of osmoticum used”
Claim · model-written summary
The inhibition of cotton seed germination by osmotic priming was more marked under water stress.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- osmotic priminge3
- Outcome
- inhibitione3
- Direction
- more markede3
- Qualifier
- under water stresse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“priming of cotton seeds”
e3“The inhibition produced by osmotic priming was more marked under water stress”
Claim · model-written summary
The effectiveness of the priming treatments in cotton does not depend exclusively on the priming water content.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- priming water contente4
- Outcome
- effectiveness of the treatmentse4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“priming of cotton seeds”
e4“the effectiveness of the treatments does not depend exclusively on the priming water content”
Claim · model-written summary
Osmotic priming with polyethylene glycol is not recommended for cotton seeds.
- Taxon
- cottonGossypium hirsutume5
- Outcome
- osmotic priming with polyethylene glycole5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“For cotton seeds, osmotic priming with polyethylene glycol is not to be recommended”
The same questions in other papers
seed treatment · growth · Gossypium hirsutum (cotton)Positive and negative results
7 papers in the same direction as this paper · 39 in the opposite direction
- positive
- positive
- positive
43 papers more in this group
See all 47 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.