Abstract
Effects of nitrogen application rate on physiological characteristics of flue-cured tobacco leaves at the maturing stage were studied by surveying chlorophyll content,nitrate reductase( NR) activity,soluble protein content and free amino acid content of fresh leaves of Zhongyan 100,a variety planted in Xuchang city of Henan Province,from different positions and in different periods every 5 days,form April to September,2012. The results showed that during the gradually mature process of tobacco,effects of nitrogen application rate on soluble protein content and chlorophyll content of the upper tobacco leaves were not significant,but it was significant on NR activity and free amino acids content. The effect of nitrogen application rate on soluble protein content of the middle tobacco leaves were not significant,but it was significant on NR activity,chlorophyll content and free amino acids content. Only appropriate amount of nitrogen application could produce high quality tobacco leaves. The treatment of 45 kg / hm2pure nitrogen was the best.
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Claims 10
Claim · model-written summary
Nitrogen rate did not significantly affect upper-leaf soluble protein content.
- Taxon
- tobacco
Nicotiana tabacume0 - Organ / stage
- upper tobacco leavese0
- Treatment
- nitrogen application ratee0
- Outcome
- soluble protein contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of nitrogen application rate on soluble protein content and chlorophyll content of the upper tobacco leaves were not significant”
Claim · model-written summary
Nitrogen rate did not significantly affect upper-leaf chlorophyll content.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- upper tobacco leavese0
- Treatment
- nitrogen application ratee0
- Outcome
- chlorophyll contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“effects of nitrogen application rate on soluble protein content and chlorophyll content of the upper tobacco leaves were not significant”
Claim · model-written summary
Nitrogen rate significantly affected upper-leaf NR activity.
- Taxon
- tobaccoNicotiana tabacumt0
- Organ / stage
- upper tobacco leavese1
- Treatment
- nitrogen application ratee1
- Outcome
- NR activitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but it was significant on NR activity and free amino acids content”
e1“effects of nitrogen application rate on soluble protein content and chlorophyll content of the upper tobacco leaves were not significant”
t0“Effects of Nitrogen Application Rate on Physiological Characteristics of Flue-Cured Tobacco Leaves at the Maturing Stage”
Claim · model-written summary
Nitrogen rate significantly affected upper-leaf free amino acids.
- Taxon
- tobaccoNicotiana tabacumt0
- Organ / stage
- upper tobacco leavese1
- Treatment
- nitrogen application ratee1
- Outcome
- free amino acids contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but it was significant on NR activity and free amino acids content”
e1“effects of nitrogen application rate on soluble protein content and chlorophyll content of the upper tobacco leaves were not significant”
t0“Effects of Nitrogen Application Rate on Physiological Characteristics of Flue-Cured Tobacco Leaves at the Maturing Stage”
Claim · model-written summary
Nitrogen rate did not significantly affect middle-leaf soluble protein.
- Taxon
- tobaccoNicotiana tabacume0
- Organ / stage
- middle tobacco leavese0
- Treatment
- nitrogen application ratee0
- Outcome
- soluble protein contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of nitrogen application rate on soluble protein content of the middle tobacco leaves were not significant”
Claim · model-written summary
Nitrogen rate significantly affected middle-leaf NR activity.
- Taxon
- tobaccoNicotiana tabacumt0
- Organ / stage
- middle tobacco leavese1
- Treatment
- nitrogen application ratee1
- Outcome
- NR activitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but it was significant on NR activity,chlorophyll content and free amino acids content”
e1“The effect of nitrogen application rate on soluble protein content of the middle tobacco leaves were not significant”
t0“Effects of Nitrogen Application Rate on Physiological Characteristics of Flue-Cured Tobacco Leaves at the Maturing Stage”
Claim · model-written summary
Nitrogen rate significantly affected middle-leaf chlorophyll.
- Taxon
- tobaccoNicotiana tabacumt0
- Organ / stage
- middle tobacco leavese1
- Treatment
- nitrogen application ratee1
- Outcome
- chlorophyll contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but it was significant on NR activity,chlorophyll content and free amino acids content”
e1“The effect of nitrogen application rate on soluble protein content of the middle tobacco leaves were not significant”
t0“Effects of Nitrogen Application Rate on Physiological Characteristics of Flue-Cured Tobacco Leaves at the Maturing Stage”
Claim · model-written summary
Nitrogen rate significantly affected middle-leaf free amino acids.
- Taxon
- tobaccoNicotiana tabacumt0
- Organ / stage
- middle tobacco leavese1
- Treatment
- nitrogen application ratee1
- Outcome
- free amino acids contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but it was significant on NR activity,chlorophyll content and free amino acids content”
e1“The effect of nitrogen application rate on soluble protein content of the middle tobacco leaves were not significant”
t0“Effects of Nitrogen Application Rate on Physiological Characteristics of Flue-Cured Tobacco Leaves at the Maturing Stage”
Claim · model-written summary
The authors recommend an appropriate nitrogen amount for high-quality leaves.
- Taxon
- tobaccoNicotiana tabacume0
- Outcome
- appropriate amount of nitrogen application could produce high quality tobacco leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only appropriate amount of nitrogen application could produce high quality tobacco leaves”
Claim · model-written summary
The 45 kg/hm2 nitrogen treatment was judged best.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- 45 kg / hm2pure nitrogene0
- Outcome
- the beste0
- Direction
- the beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment of 45 kg / hm2pure nitrogen was the best”
t0“Effects of Nitrogen Application Rate on Physiological Characteristics of Flue-Cured Tobacco Leaves at the Maturing Stage”
The same questions in other papers
nitrogen · physiology: pigments · Nicotiana tabacum (tobacco)Positive and negative results
2 papers in the same direction as this paper · 11 in the opposite direction
- positive
- positive
- positive
10 papers more in this group
See all 14 papers →nitrogen · physiology: osmolytes · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- no effect
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.