Abstract
Although Azospirillum spp. are considered to be important plant growth promoting bacteria, their possible effects on germination and vigor of aged lettuce seeds has not been previously evaluated. In fact, there is a paucity of published data about inoculation effects on seed germination. The aim of this work was to evaluate seed quality of one-year aged lettuce (Lactuca sativa L. cv. Crimor INTA) seeds after Azospirillum brasilense Sp245 inoculation with or without an osmopriming pretreatment. Fresh lettuce seeds were stored in the dark in a dry chamber for one year and then subjected to inoculation with A. brasilense Sp245, to osmotic priming with 0.37 mol/L MgSO 4 , or to both combined treatments. Seed germination, seed vigor, and seedlings emergence percentages were determined, and the abnormal seedling fraction was characterized. Azospirillum brasilense inoculation without a previous osmopriming enhanced seed vigor and seedling emergence percentages and decreased the fraction of abnormal seedlings. There was an additional effect of osmopriming as a previous treatment on germination percentage. We concluded that the use of A. brasilense inoculation alone or after an osmopriming treatment would contribute to overcome the negative effects of ageing on lettuce cv. Crimor INTA seeds.
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Claims 4
Claim · model-written summary
Azospirillum inoculation without priming enhanced aged lettuce seed vigor and seedling emergence.
- Taxon
- lettuce
Lactuca sativae1 - Material
- Crimor INTAe1
- Treatment
- Azospirillum brasilense inoculation without a previous osmopriminge0
- Interactor
- Azospirillum brasilense
Azospirillum brasilensee0symbiont - Outcome
- seed vigor and seedling emergence percentagese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azospirillum brasilense inoculation without a previous osmopriming enhanced seed vigor and seedling emergence percentages and decreased the fraction of abnormal seedlings.”
e1“lettuce (Lactuca sativa L. cv. Crimor INTA) seeds”
Claim · model-written summary
Azospirillum inoculation without priming reduced abnormal seedlings.
- Taxon
- lettuceLactuca sativae1
- Material
- Crimor INTAe1
- Treatment
- Azospirillum brasilense inoculation without a previous osmopriminge0
- Interactor
- Azospirillum brasilenseAzospirillum brasilensee0symbiont
- Outcome
- fraction of abnormal seedlingse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azospirillum brasilense inoculation without a previous osmopriming enhanced seed vigor and seedling emergence percentages and decreased the fraction of abnormal seedlings.”
e1“lettuce (Lactuca sativa L. cv. Crimor INTA) seeds”
Claim · model-written summary
Osmopriming before inoculation additionally improved germination percentage.
- Taxon
- lettuceLactuca sativae1
- Material
- Crimor INTAe1
- Treatment
- osmopriming as a previous treatmente0
- Interactor
- Azospirillum brasilense Sp245Azospirillum brasilensee2symbiont
- Outcome
- germination percentagee0
- Comparator
- without an osmopriming pretreatmente2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was an additional effect of osmopriming as a previous treatment on germination percentage.”
e1“lettuce (Lactuca sativa L. cv. Crimor INTA) seeds”
e2“Azospirillum brasilense Sp245 inoculation with or without an osmopriming pretreatment”
Claim · model-written summary
The authors concluded inoculation alone or after priming could overcome aging effects on Crimor INTA seed.
- Taxon
- lettuceLactuca sativae0
- Material
- Crimor INTAe0
- Interactor
- A. brasilenseAzospirillum brasilensee0symbiont
- Outcome
- overcome the negative effects of ageinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of A. brasilense inoculation alone or after an osmopriming treatment would contribute to overcome the negative effects of ageing on lettuce cv. Crimor INTA seeds.”
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See all 111 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.