Paper · 2004 · Acta Agriculturae Boreali—Sinica

Effect of Different Potassium Application Rate on Some Enzymes Activity During the Course of the Growth of Flue-cured Tobacco

Hongfeng Wang

7
claims
14
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Experiments in pot were carried out to study the effect of different potassium application rate on some enzymes activity during the course of the growth of Flue-cured tobacco in Cinnamon soil area. The NR activity and root activity are enhanced and the leaf ability of composing chlorophyll during the prophase of the growing process is increasing by using potassium fertilizer. Potassium can adjust the SOD activity and increase the SOD activity during the prophase and metaphase of the growing process. The invertase activity of 75 days after transplanting is lower than that of 60 days after transplanting. The invertase activity is increased by using potassium fertilizer, but the difference among the different potassium application rate treatments is small. During the metaphase and anaphase of the growing process the ATPase activity of root is added by using potassium fertilizer, but the ATPase activity of root is reduced along with the growing of the plant.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium fertilizer enhanced nitrate reductase activity and root activity.

Taxon
Flue-cured Tobaccot0
Treatment
potassium fertilizere0
Outcome
NR activity and root activitye0
Direction
enhancede0

Not reportedComparator

Verbatim

e0

“The NR activity and root activity are enhanced and the leaf ability of composing chlorophyll during the prophase of the growing process is increasing by using potassium fertilizer.”

✓ located verbatim in the source · abstract, characters 198–378 · show in text ↑
t0

“Flue-cured Tobacco”

✓ located verbatim in the source · title, characters 107–125 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium fertilizer increased leaf chlorophyll-synthesis ability early in growth.

Taxon
Flue-cured Tobaccot0
Treatment
potassium fertilizere0
Outcome
leaf ability of composing chlorophylle0
Direction
increasinge0
Qualifier
during the prophase of the growing processe0

Not reportedComparator

Verbatim

e0

“leaf ability of composing chlorophyll during the prophase of the growing process is increasing by using potassium fertilizer”

✓ located verbatim in the source · abstract, characters 253–377 · show in text ↑
t0

“Flue-cured Tobacco”

✓ located verbatim in the source · title, characters 107–125 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium fertilizer increased SOD activity during early and middle growth.

Taxon
Flue-cured Tobaccot0
Treatment
Potassiume0
Outcome
SOD activitye0
Direction
increasee0
Qualifier
during the prophase and metaphase of the growing processe0

Not reportedComparator

Verbatim

e0

“Potassium can adjust the SOD activity and increase the SOD activity during the prophase and metaphase of the growing process.”

✓ located verbatim in the source · abstract, characters 379–504 · show in text ↑
t0

“Flue-cured Tobacco”

✓ located verbatim in the source · title, characters 107–125 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Invertase activity at 75 days after transplanting was lower than at 60 days.

Taxon
Flue-cured Tobaccot0
Outcome
invertase activitye0
Direction
lowere0
Qualifier
75 days after transplantinge0
Comparator
60 days after transplantinge0

Verbatim

e0

“The invertase activity of 75 days after transplanting is lower than that of 60 days after transplanting.”

✓ located verbatim in the source · abstract, characters 505–609 · show in text ↑
t0

“Flue-cured Tobacco”

✓ located verbatim in the source · title, characters 107–125 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium fertilizer increased invertase activity, with small differences among rates.

Taxon
Flue-cured Tobaccot0
Treatment
potassium fertilizere0
Outcome
invertase activitye0
Direction
increasede0
Qualifier
difference among the different potassium application rate treatments is smalle0

Not reportedComparator

Verbatim

e0

“The invertase activity is increased by using potassium fertilizer, but the difference among the different potassium application rate treatments is small.”

✓ located verbatim in the source · abstract, characters 610–763 · show in text ↑
t0

“Flue-cured Tobacco”

✓ located verbatim in the source · title, characters 107–125 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium fertilizer increased root ATPase activity in middle and late growth.

Taxon
Flue-cured Tobaccot0
Treatment
potassium fertilizere0
Outcome
ATPase activity of roote0
Direction
addede0
Qualifier
During the metaphase and anaphase of the growing processe0

Not reportedComparator

Verbatim

e0

“During the metaphase and anaphase of the growing process the ATPase activity of root is added by using potassium fertilizer”

✓ located verbatim in the source · abstract, characters 764–887 · show in text ↑
t0

“Flue-cured Tobacco”

✓ located verbatim in the source · title, characters 107–125 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Root ATPase activity declined as the tobacco plant grew.

Taxon
Flue-cured Tobaccot0
Outcome
ATPase activity of roote0
Direction
reducede0
Qualifier
along with the growing of the plante0

Verbatim

e0

“the ATPase activity of root is reduced along with the growing of the plant.”

✓ located verbatim in the source · abstract, characters 893–968 · show in text ↑
t0

“Flue-cured Tobacco”

✓ located verbatim in the source · title, characters 107–125 · show in text ↑

potassium · physiology: antioxidant enzymes · Nicotiana tabacum (tobacco)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive
See all 4 papers →

fertilization · physiology: enzyme activity · Nicotiana tabacum (tobacco)Positive and negative results

21 papers: 18 positive, 3 negative or no effect

17 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. negative

17 papers more in this group

See all 21 papers →

fertilization · physiology: pigments · Nicotiana tabacum (tobacco)Positive and negative results

30 papers: 29 positive, 1 negative or no effect

28 papers in the same direction as this paper · 1 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive

26 papers more in this group

See all 30 papers →

fertilization · growth · Nicotiana tabacum (tobacco)Positive and negative results

182 papers: 154 positive, 28 negative or no effect

153 papers in the same direction as this paper · 27 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

178 papers more in this group

See all 182 papers →

fertilization · soil: biology · Nicotiana tabacum (tobacco)Results agree

20 papers: 20 positive, 0 negative or no effect

19 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

16 papers more in this group

See all 20 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.