Abstract
Three different genotypes of flue-cured tobacco including one potassium-enriched cultivar 'Nongda 202' and two common cultivars,'NC89' and 'Jingyehuang',were used to investigate the differences of root morphology and physiology in solution culture under low K and normal K supply condition.The results indicated that:comparing with low K supply condition,the indices of root morphology and physiology including root fresh weight,root volume,root dry weight,root vigor and total vigor,total uptake area,active uptake area,H+ excretion,CEC,soluble protein content and ATPase activity increased significantly under normal K supply condition except specific surface area,and the varying range of 'Nongda 202' was bigger than the other cultivars.The root morphology was good and root physiology were vigorous under normal K supply condition were remarkable characteristics of 'Nongda 202'.Its morphological and physiological characteristics ensured the efficient absorption and utilization of potassium.Whereas,the morphological and physiological characteristics were suppressed under low K condition,its tolerance to low potassium was weaker.In conclusion,there are obvious differences between flue-cured tobacco genotypes in root morphological and physiological characteristics,and their reaction to potassium supply condition.As potassium level increasing,the root morphological and physiological characteristics are significantly improved,thereby enhancing its potassium absorption and trans-shipment capacity.
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Claims 8
Claim · model-written summary
Normal K significantly increased tobacco root fresh weight, volume and dry weight relative to low K.
- Taxon
- Tobacco
Nicotiana tabacumt0 - Organ / stage
- roote0
- Treatment
- normal K supply conditione0
- Outcome
- root fresh weight,root volume,root dry weighte0
- Direction
- increasede0
- Comparator
- low K supply conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“comparing with low K supply condition,the indices of root morphology and physiology including root fresh weight,root volume,root dry weight,root vigor and total vigor,total uptake area,active uptake area,H+ excretion,CEC,soluble protein content and ATPase activity increased significantly under normal K supply condition except specific surface area”
t0“Flue-cured Tobacco Genotype”
Claim · model-written summary
Normal K significantly increased tobacco root vigor, total vigor and uptake areas.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- normal K supply conditione0
- Outcome
- root vigor and total vigor,total uptake area,active uptake areae0
- Direction
- increasede0
- Comparator
- low K supply conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“comparing with low K supply condition,the indices of root morphology and physiology including root fresh weight,root volume,root dry weight,root vigor and total vigor,total uptake area,active uptake area,H+ excretion,CEC,soluble protein content and ATPase activity increased significantly under normal K supply condition except specific surface area”
t0“Flue-cured Tobacco Genotype”
Claim · model-written summary
Normal K significantly increased tobacco root H+ excretion, CEC and soluble protein content.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- normal K supply conditione0
- Outcome
- H+ excretion,CEC,soluble protein contente0
- Direction
- increasede0
- Comparator
- low K supply conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“comparing with low K supply condition,the indices of root morphology and physiology including root fresh weight,root volume,root dry weight,root vigor and total vigor,total uptake area,active uptake area,H+ excretion,CEC,soluble protein content and ATPase activity increased significantly under normal K supply condition except specific surface area”
t0“Flue-cured Tobacco Genotype”
Claim · model-written summary
Normal K significantly increased tobacco root ATPase activity.
- Taxon
- TobaccoNicotiana tabacumt0
- Treatment
- normal K supply conditione0
- Gene
- ATPasee0
- Outcome
- ATPase activitye0
- Direction
- increasede0
- Comparator
- low K supply conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“comparing with low K supply condition,the indices of root morphology and physiology including root fresh weight,root volume,root dry weight,root vigor and total vigor,total uptake area,active uptake area,H+ excretion,CEC,soluble protein content and ATPase activity increased significantly under normal K supply condition except specific surface area”
t0“Flue-cured Tobacco Genotype”
Claim · model-written summary
Nongda 202 showed a larger change in root traits than the other cultivars.
- Taxon
- TobaccoNicotiana tabacumt0
- Material
- Nongda 202e0
- Outcome
- varying rangee0
- Direction
- biggere0
- Comparator
- other cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the varying range of 'Nongda 202' was bigger than the other cultivars”
t0“Flue-cured Tobacco Genotype”
Claim · model-written summary
Low K suppressed Nongda 202 root morphology and physiology.
- Taxon
- TobaccoNicotiana tabacumt0
- Material
- Nongda 202e1
- Treatment
- low K conditione0
- Outcome
- morphological and physiological characteristicse0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the morphological and physiological characteristics were suppressed under low K condition,its tolerance to low potassium was weaker”
t0“Flue-cured Tobacco Genotype”
e1“potassium-enriched cultivar 'Nongda 202'”
Claim · model-written summary
Nongda 202 had weaker tolerance to low potassium.
- Taxon
- TobaccoNicotiana tabacumt0
- Material
- Nongda 202e1
- Outcome
- tolerance to low potassiume0
- Direction
- weakere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“its tolerance to low potassium was weaker”
t0“Flue-cured Tobacco Genotype”
e1“potassium-enriched cultivar 'Nongda 202'”
Claim · model-written summary
Improved root traits were interpreted as enhancing potassium absorption and trans-shipment.
- Taxon
- TobaccoNicotiana tabacumt0
- Organ / stage
- roote0
- Outcome
- potassium absorption and trans-shipment capacitye0
- Direction
- enhancinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As potassium level increasing,the root morphological and physiological characteristics are significantly improved,thereby enhancing its potassium absorption and trans-shipment capacity”
t0“Flue-cured Tobacco Genotype”
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See all 22 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.