Abstract
The effects of interactions between irrigation times in fast growing stage and sulphur levels on physiological and biochemical indices and chemical components in flue-cured tobacco were studied under field experiment conditions,with the treatments of irrigation times(three levels)and sulphur supply(three levels).The results indicated that the SPAD values of flue-cured tobacco leaves were improved with the increasing rate of sulphur;the NR activity and proline contents of 2.0g per plant were higher than those of other treatments,while both sulphur deficiency and sulphur surplus inhibited the NR activity and proline contents;the MDA content of tabacco leaves reflected an upward trend in the whole growth period and reached the peak at maturing stage;both sulphur deficiency and sulphur surplus increased the MDA content of tabacco leaves with the increase of membrane permeability;potassium content,the nicotine and reducing sugar quantity were increased with the adding sulphur supply in a certain range;single irrigation times and sulphur levels had no remarkable effects on sulphur content of tobacco leaves,while their interaction effect reached highly significant level;appropriate sulphur supply(2.0g per plant)coordinated with reasonable irrigation times(2times in fast growing stage)could significantly increase the internal quality of tabacco leaves.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher.
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 15
Claim · model-written summary
Increasing sulphur improved SPAD values in tobacco leaves.
- Taxon
- flue-cured tobaccoe0
- Treatment
- increasing rate of sulphure0
- Outcome
- SPAD valuese0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“the SPAD values of flue-cured tobacco leaves were improved with the increasing rate of sulphur”
Claim · model-written summary
The 2.0g per plant sulphur treatment produced higher NR activity than other treatments.
Verbatim
e0“the NR activity and proline contents of 2.0g per plant were higher than those of other treatments”
t0“Flue-Cured Tobacco”
Claim · model-written summary
The 2.0g per plant sulphur treatment produced higher proline content than other treatments.
Verbatim
e0“the NR activity and proline contents of 2.0g per plant were higher than those of other treatments”
t0“Flue-Cured Tobacco”
Claim · model-written summary
Both sulphur deficiency and surplus inhibited NR activity.
- Taxon
- flue-cured tobaccot0
- Treatment
- sulphur deficiency and sulphur surpluse0
- Outcome
- NR activitye0
- Direction
- inhibitede0
Not reportedComparator
Verbatim
e0“both sulphur deficiency and sulphur surplus inhibited the NR activity and proline contents”
t0“Flue-Cured Tobacco”
Claim · model-written summary
Both sulphur deficiency and surplus inhibited proline content.
- Taxon
- flue-cured tobaccot0
- Treatment
- sulphur deficiency and sulphur surpluse0
- Outcome
- proline contentse0
- Direction
- inhibitede0
Not reportedComparator
Verbatim
e0“both sulphur deficiency and sulphur surplus inhibited the NR activity and proline contents”
t0“Flue-Cured Tobacco”
Claim · model-written summary
Tobacco leaf MDA content rose through growth and peaked at maturity.
Verbatim
e0“the MDA content of tabacco leaves reflected an upward trend in the whole growth period and reached the peak at maturing stage”
t0“Flue-Cured Tobacco”
Claim · model-written summary
Sulphur deficiency and surplus increased tobacco leaf MDA content.
- Taxon
- flue-cured tobaccot0
- Treatment
- sulphur deficiency and sulphur surpluse0
- Outcome
- MDA contente0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“both sulphur deficiency and sulphur surplus increased the MDA content of tabacco leaves with the increase of membrane permeability”
t0“Flue-Cured Tobacco”
Claim · model-written summary
Sulphur deficiency and surplus increased membrane permeability.
- Taxon
- flue-cured tobaccot0
- Treatment
- sulphur deficiency and sulphur surpluse0
- Outcome
- membrane permeabilitye0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“both sulphur deficiency and sulphur surplus increased the MDA content of tabacco leaves with the increase of membrane permeability”
t0“Flue-Cured Tobacco”
Claim · model-written summary
Increasing sulphur within a range increased leaf potassium content.
- Taxon
- flue-cured tobaccot0
- Treatment
- adding sulphur supplye0
- Outcome
- potassium contente0
- Direction
- increasede0
- Qualifier
- in a certain rangee0
Not reportedComparator
Verbatim
e0“potassium content,the nicotine and reducing sugar quantity were increased with the adding sulphur supply in a certain range”
t0“Flue-Cured Tobacco”
Claim · model-written summary
Increasing sulphur within a range increased leaf nicotine.
- Taxon
- flue-cured tobaccot0
- Treatment
- adding sulphur supplye0
- Outcome
- nicotinee0
- Direction
- increasede0
- Qualifier
- in a certain rangee0
Not reportedComparator
Verbatim
e0“potassium content,the nicotine and reducing sugar quantity were increased with the adding sulphur supply in a certain range”
t0“Flue-Cured Tobacco”
Claim · model-written summary
Increasing sulphur within a range increased reducing sugar quantity.
- Taxon
- flue-cured tobaccot0
- Treatment
- adding sulphur supplye0
- Outcome
- reducing sugar quantitye0
- Direction
- increasede0
- Qualifier
- in a certain rangee0
Not reportedComparator
Verbatim
e0“potassium content,the nicotine and reducing sugar quantity were increased with the adding sulphur supply in a certain range”
t0“Flue-Cured Tobacco”
Claim · model-written summary
Irrigation times alone did not remarkably affect leaf sulphur content.
- Taxon
- flue-cured tobaccot0
- Treatment
- single irrigation timese0
- Outcome
- sulphur contente0
- Direction
- no remarkable effectse0
Not reportedComparator
Verbatim
e0“single irrigation times and sulphur levels had no remarkable effects on sulphur content of tobacco leaves”
t0“Flue-Cured Tobacco”
Claim · model-written summary
Sulphur level alone did not remarkably affect leaf sulphur content.
- Taxon
- flue-cured tobaccot0
- Treatment
- sulphur levelse0
- Outcome
- sulphur contente0
- Direction
- no remarkable effectse0
Not reportedComparator
Verbatim
e0“single irrigation times and sulphur levels had no remarkable effects on sulphur content of tobacco leaves”
t0“Flue-Cured Tobacco”
Claim · model-written summary
The irrigation by sulphur interaction significantly affected leaf sulphur content.
Not reportedComparatorDirection
Verbatim
e0“while their interaction effect reached highly significant level”
t0“Flue-Cured Tobacco”
Claim · model-written summary
Sulphur at 2.0g per plant with two irrigations significantly improved tobacco leaf internal quality.
- Taxon
- flue-cured tobaccot0
- Treatment
- sulphur supply(2.0g per plant)coordinated with reasonable irrigation times(2times in fast growing stage)e0
- Outcome
- internal qualitye0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“appropriate sulphur supply(2.0g per plant)coordinated with reasonable irrigation times(2times in fast growing stage)could significantly increase the internal quality of tabacco leaves”
t0“Flue-Cured Tobacco”
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See all 14 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.