Abstract
A field trial was conducted to study the effects of different organic acids on maturity and quality of flue-cured tobacco.The results indicated that during ripe harvesting time,three organic acids could enhance K,reduce sugar contents,K/Cl,sugar/nicotine,and simultaneously reduce the protein and nicotine contents.But the effects of different kinds of organic acids were different.Malic acid and fulvic acid could obviously increase K content of the upper and middle stalk position leaves.Malic acid and oleic acid could obviously reduce the protein content of upper and middle stalk position leaves and nicotine content of middle stalk position leaves.During the over-ripe harvesting time,in comparison with the ripe harvesting time,chemical compositions of tobacco leaves were most coordinated in the fulvic acid processing,thus could improve the quality of tobacco leaves.The effects of fulvic acid were better than those of malic acid and oleic acid.
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Claims 15
Claim · model-written summary
The three organic acids increased tobacco leaf K during ripe harvest.
- Taxon
- flue-cured tobaccot0
- Organ / stage
- ripe harvesting timee0
- Treatment
- three organic acidse0
- Outcome
- Ke0
- Direction
- enhancee0
Not reportedComparator
Verbatim
e0“during ripe harvesting time,three organic acids could enhance K,reduce sugar contents,K/Cl,sugar/nicotine,and simultaneously reduce the protein and nicotine contents”
t0“flue-cured tobacco”
Claim · model-written summary
The three organic acids reduced tobacco sugar content during ripe harvest.
Not reportedComparator
Verbatim
e0“during ripe harvesting time,three organic acids could enhance K,reduce sugar contents,K/Cl,sugar/nicotine,and simultaneously reduce the protein and nicotine contents”
t0“flue-cured tobacco”
Claim · model-written summary
The three organic acids reduced tobacco K/Cl during ripe harvest.
Not reportedComparator
Verbatim
e0“during ripe harvesting time,three organic acids could enhance K,reduce sugar contents,K/Cl,sugar/nicotine,and simultaneously reduce the protein and nicotine contents”
t0“flue-cured tobacco”
Claim · model-written summary
The three organic acids reduced tobacco sugar/nicotine during ripe harvest.
Not reportedComparator
Verbatim
e0“during ripe harvesting time,three organic acids could enhance K,reduce sugar contents,K/Cl,sugar/nicotine,and simultaneously reduce the protein and nicotine contents”
t0“flue-cured tobacco”
Claim · model-written summary
The three organic acids reduced tobacco protein content during ripe harvest.
Not reportedComparator
Verbatim
e0“during ripe harvesting time,three organic acids could enhance K,reduce sugar contents,K/Cl,sugar/nicotine,and simultaneously reduce the protein and nicotine contents”
t0“flue-cured tobacco”
Claim · model-written summary
The three organic acids reduced tobacco nicotine content during ripe harvest.
Not reportedComparator
Verbatim
e0“during ripe harvesting time,three organic acids could enhance K,reduce sugar contents,K/Cl,sugar/nicotine,and simultaneously reduce the protein and nicotine contents”
t0“flue-cured tobacco”
Claim · model-written summary
Malic acid increased K in upper and middle tobacco leaves.
- Taxon
- flue-cured tobaccot0
- Organ / stage
- upper and middle stalk position leavese0
- Treatment
- Malic acide0
- Outcome
- K contente0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“Malic acid and fulvic acid could obviously increase K content of the upper and middle stalk position leaves”
t0“flue-cured tobacco”
Claim · model-written summary
Fulvic acid increased K in upper and middle tobacco leaves.
- Taxon
- flue-cured tobaccot0
- Organ / stage
- upper and middle stalk position leavese0
- Treatment
- fulvic acide0
- Outcome
- K contente0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“Malic acid and fulvic acid could obviously increase K content of the upper and middle stalk position leaves”
t0“flue-cured tobacco”
Claim · model-written summary
Malic acid reduced protein in upper and middle tobacco leaves.
- Taxon
- flue-cured tobaccot0
- Organ / stage
- upper and middle stalk position leavese0
- Treatment
- Malic acide0
- Outcome
- protein contente0
- Direction
- reducee0
Not reportedComparator
Verbatim
e0“Malic acid and oleic acid could obviously reduce the protein content of upper and middle stalk position leaves and nicotine content of middle stalk position leaves”
t0“flue-cured tobacco”
Claim · model-written summary
Oleic acid reduced protein in upper and middle tobacco leaves.
- Taxon
- flue-cured tobaccot0
- Organ / stage
- upper and middle stalk position leavese0
- Treatment
- oleic acide0
- Outcome
- protein contente0
- Direction
- reducee0
Not reportedComparator
Verbatim
e0“Malic acid and oleic acid could obviously reduce the protein content of upper and middle stalk position leaves and nicotine content of middle stalk position leaves”
t0“flue-cured tobacco”
Claim · model-written summary
Malic acid reduced nicotine in middle tobacco leaves.
- Taxon
- flue-cured tobaccot0
- Organ / stage
- middle stalk position leavese0
- Treatment
- Malic acide0
- Outcome
- nicotine contente0
- Direction
- reducee0
Not reportedComparator
Verbatim
e0“Malic acid and oleic acid could obviously reduce the protein content of upper and middle stalk position leaves and nicotine content of middle stalk position leaves”
t0“flue-cured tobacco”
Claim · model-written summary
Oleic acid reduced nicotine in middle tobacco leaves.
- Taxon
- flue-cured tobaccot0
- Organ / stage
- middle stalk position leavese0
- Treatment
- oleic acide0
- Outcome
- nicotine contente0
- Direction
- reducee0
Not reportedComparator
Verbatim
e0“Malic acid and oleic acid could obviously reduce the protein content of upper and middle stalk position leaves and nicotine content of middle stalk position leaves”
t0“flue-cured tobacco”
Claim · model-written summary
Fulvic acid produced the most coordinated tobacco leaf chemical composition at over-ripe harvest compared with ripe harvest.
Verbatim
e0“During the over-ripe harvesting time,in comparison with the ripe harvesting time,chemical compositions of tobacco leaves were most coordinated in the fulvic acid processing”
t0“flue-cured tobacco”
Claim · model-written summary
Fulvic acid improved tobacco leaf quality.
- Taxon
- flue-cured tobaccot0
- Treatment
- fulvic acid processinge1
- Outcome
- quality of tobacco leavese0
- Direction
- improvee0
Not reportedComparator
Verbatim
e0“thus could improve the quality of tobacco leaves”
e1“fulvic acid processing”
t0“flue-cured tobacco”
Claim · model-written summary
Fulvic acid had better effects than malic and oleic acid.
Verbatim
e0“The effects of fulvic acid were better than those of malic acid and oleic acid”
t0“flue-cured tobacco”
The same questions in other papers
other · organism · Nicotiana tabacum (tobacco)Positive and negative results
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- no effect
- positive
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See all 5 papers →other · quality: general · Nicotiana tabacum (tobacco)Positive and negative results
11 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
9 papers more in this group
See all 13 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.