Abstract
Waterlogging restricts canola growth via different physiological changes. The objective of this work was to compare the effects of the foliar and seed application of two biofertilizers on some physiological and morphological responses in canola plants (Brassica napus L. cv. Hayola 401) under waterlogging stress conditions. Plants at 5-leaf stage were exposed to flooding conditions for two weeks. Two biofertilizers; AAP (Azotobacter chroococcum, Azospirillum spp. and Pseudomonas spp.) and APB (Azospirillum spp., Pseudomonas fluorescens and Basillus subtilis) were applied by seed inoculation or foliar spray at different times i.e. before waterlogging, after waterlogging and, before and after waterlogging. The results showed that the flooding stress significantly decreased the dry weight and length of the shoots and roots. The activity of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POX) were reduced, whereas lipid peroxidation and ethylene production in the leaves were increased under waterlogging stress. The adverse effects of the flooding stress were significantly alleviated by the seed inoculation and foliar application once (before the stress) of both biofertilizers compared to the waterlogged control. However, among two methods, inoculating the seeds with the biofertilizers is cost efficient and advisable to alleviate waterlogging damage in canola.
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Claims 5
Claim · model-written summary
Waterlogging stress significantly decreased dry weight and length of canola shoots and roots.
- Taxon
- canola
.jpg?width=60)
Brassica napus var. napuse0 - Material
- Hayola 401e0
- Treatment
- flooding stresse1
- Outcome
- dry weight and length of the shoots and rootse1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“canola plants (Brassica napus L. cv. Hayola 401)”
e1“the flooding stress significantly decreased the dry weight and length of the shoots and roots”
Claim · model-written summary
Waterlogging stress reduced the activity of superoxide dismutase, catalase and peroxidase in canola leaves.
- Taxon
- canolaBrassica napus var. napuse0
- Material
- Hayola 401e0
- Treatment
- waterlogging stresse3
- Outcome
- activity of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POX)e2
- Direction
- reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“canola plants (Brassica napus L. cv. Hayola 401)”
e2“The activity of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POX) were reduced”
e3“lipid peroxidation and ethylene production in the leaves were increased under waterlogging stress”
Claim · model-written summary
Waterlogging stress increased lipid peroxidation and ethylene production in canola leaves.
- Taxon
- canolaBrassica napus var. napuse0
- Material
- Hayola 401e0
- Organ / stage
- leavese3
- Treatment
- waterlogging stresse3
- Outcome
- lipid peroxidation and ethylene productione3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“canola plants (Brassica napus L. cv. Hayola 401)”
e3“lipid peroxidation and ethylene production in the leaves were increased under waterlogging stress”
Claim · model-written summary
Seed inoculation and foliar application of the biofertilizers significantly alleviated the adverse effects of flooding on canola compared with the waterlogged control.
- Taxon
- canolaBrassica napus var. napuse0
- Treatment
- seed inoculation and foliar applicatione4
- Interactor
- Azospirillum spp.
Azospirillume5symbiont - Outcome
- adverse effects of the flooding stresse4
- Direction
- alleviatede4
- Comparator
- waterlogged controle4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“canola plants (Brassica napus L. cv. Hayola 401)”
e4“The adverse effects of the flooding stress were significantly alleviated by the seed inoculation and foliar application once (before the stress) of both biofertilizers compared to the waterlogged control”
e5“AAP (Azotobacter chroococcum, Azospirillum spp. and Pseudomonas spp.)”
Claim · model-written summary
Inoculating canola seeds with the biofertilizers is cost efficient and advisable to alleviate waterlogging damage.
- Taxon
- canolaBrassica napus var. napuse6
- Outcome
- alleviate waterlogging damage in canolae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“inoculating the seeds with the biofertilizers is cost efficient and advisable to alleviate waterlogging damage in canola”
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