Abstract
Tobacco seedlings were cultured in culture boxes floating on the low concentration nutrient solution to investigate arbuscular mycorrhizal fungal effects on plant growth,nutrition and selected enzyme activities.Three arbuscular mycorrhizal fungi(AM),two strains of Glomus intraradices Smith Schenck (BEG Number 141 and BEG Number 193) and Glomuse etunicatum Becker Gerdemann(BEG Number 168) were inoculated at the stages of sowing,fourth leaf and root occurrence.The results showed that the fungal effects varied with AM species and strains. The earlier the inoculation,the higher the infection rates,which ranged from 39.2% to 59.6% at sowing stage.The biomass,contents of phosphorus and chlorophyll,absorption of nitrogen,phosphorus and potassium by seedlings and activities of superoxide dismutase(SOD) in leaves,Chitinase and nitrogen reductase in roots were significantly increased by the inoculation of Glomus intraradices 141.Therefore,the inoculation of the suitable AM species or strains at sowing stage could be an efficient way to improve the qualities of tobacco seedlings in intensive culture of tobacco seedlings.
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Claims 8
Claim · model-written summary
Arbuscular mycorrhizal fungal effects varied by species and strain.
- Taxon
- tobacco seedlings
Nicotiana tabacumt0 - Interactor
- AMe0symbiont
- Outcome
- fungal effectse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the fungal effects varied with AM species and strains.”
t0“tobacco seedlings”
Claim · model-written summary
Earlier arbuscular mycorrhizal fungal inoculation was associated with higher infection rates, reaching 39.2% to 59.6% when applied at sowing.
- Taxon
- tobacco seedlingsNicotiana tabacumt0
- Treatment
- inoculatione0
- Interactor
- arbuscular mycorrhizal fungi(AM)e1symbiont
- Outcome
- infection ratese0
- Direction
- highere0
- Value
- 39.2% to 59.6%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The earlier the inoculation,the higher the infection rates,which ranged from 39.2% to 59.6% at sowing stage.”
e1“Three arbuscular mycorrhizal fungi(AM),two strains of Glomus intraradices Smith Schenck (BEG Number 141 and BEG Number 193) and Glomuse etunicatum Becker Gerdemann(BEG Number 168) were inoculated at the stages of sowing,fourth leaf and root occurrence.”
t0“tobacco seedlings”
Claim · model-written summary
Glomus intraradices 141 inoculation significantly increased tobacco seedling biomass.
- Taxon
- tobacco seedlingsNicotiana tabacumt0
- Treatment
- inoculation of Glomus intraradices 141e0
- Interactor
- Glomus intraradices 141Rhizophagus intraradicese0symbiont
- Outcome
- biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biomass,contents of phosphorus and chlorophyll,absorption of nitrogen,phosphorus and potassium by seedlings and activities of superoxide dismutase(SOD) in leaves,Chitinase and nitrogen reductase in roots were significantly increased by the inoculation of Glomus intraradices 141.”
t0“tobacco seedlings”
Claim · model-written summary
Glomus intraradices 141 inoculation significantly increased phosphorus and chlorophyll contents in tobacco seedlings.
- Taxon
- tobacco seedlingsNicotiana tabacumt0
- Treatment
- inoculation of Glomus intraradices 141e0
- Interactor
- Glomus intraradices 141Rhizophagus intraradicese0symbiont
- Outcome
- contents of phosphorus and chlorophylle0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biomass,contents of phosphorus and chlorophyll,absorption of nitrogen,phosphorus and potassium by seedlings and activities of superoxide dismutase(SOD) in leaves,Chitinase and nitrogen reductase in roots were significantly increased by the inoculation of Glomus intraradices 141.”
t0“tobacco seedlings”
Claim · model-written summary
Glomus intraradices 141 inoculation significantly increased nitrogen, phosphorus, and potassium absorption by tobacco seedlings.
- Taxon
- tobacco seedlingsNicotiana tabacumt0
- Treatment
- inoculation of Glomus intraradices 141e0
- Interactor
- Glomus intraradices 141Rhizophagus intraradicese0symbiont
- Outcome
- absorption of nitrogen,phosphorus and potassiume0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biomass,contents of phosphorus and chlorophyll,absorption of nitrogen,phosphorus and potassium by seedlings and activities of superoxide dismutase(SOD) in leaves,Chitinase and nitrogen reductase in roots were significantly increased by the inoculation of Glomus intraradices 141.”
t0“tobacco seedlings”
Claim · model-written summary
Glomus intraradices 141 inoculation significantly increased leaf superoxide dismutase activity in tobacco seedlings.
- Taxon
- tobacco seedlingsNicotiana tabacumt0
- Organ / stage
- leavese0
- Treatment
- inoculation of Glomus intraradices 141e0
- Interactor
- Glomus intraradices 141Rhizophagus intraradicese0symbiont
- Outcome
- activities of superoxide dismutase(SOD)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biomass,contents of phosphorus and chlorophyll,absorption of nitrogen,phosphorus and potassium by seedlings and activities of superoxide dismutase(SOD) in leaves,Chitinase and nitrogen reductase in roots were significantly increased by the inoculation of Glomus intraradices 141.”
t0“tobacco seedlings”
Claim · model-written summary
Glomus intraradices 141 inoculation significantly increased root chitinase and nitrogen reductase activities in tobacco seedlings.
- Taxon
- tobacco seedlingsNicotiana tabacumt0
- Organ / stage
- rootse0
- Treatment
- inoculation of Glomus intraradices 141e0
- Interactor
- Glomus intraradices 141Rhizophagus intraradicese0symbiont
- Outcome
- Chitinase and nitrogen reductasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biomass,contents of phosphorus and chlorophyll,absorption of nitrogen,phosphorus and potassium by seedlings and activities of superoxide dismutase(SOD) in leaves,Chitinase and nitrogen reductase in roots were significantly increased by the inoculation of Glomus intraradices 141.”
t0“tobacco seedlings”
Claim · model-written summary
The authors recommend inoculating suitable arbuscular mycorrhizal fungal species or strains at sowing to improve intensively cultured tobacco seedling quality.
- Taxon
- tobacco seedlingsNicotiana tabacume0
- Treatment
- inoculation of the suitable AM species or strains at sowing stagee0
- Interactor
- AMe0symbiont
- Outcome
- qualities of tobacco seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Therefore,the inoculation of the suitable AM species or strains at sowing stage could be an efficient way to improve the qualities of tobacco seedlings in intensive culture of tobacco seedlings.”
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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.