Paper · 2004 · Journal of Agro-environmental Science

Nitrate Accumulation and Variation of Nutritional Quality in Pakchoi after Application of Several Amino Acids in Summer and Autumn

Hua Wang

13
claims
27
verbatim quotes
1
citations
2
research areas
—
Not open access

Abstract

Effects of spraying glutamic acid (Glu), glutamine (Gln) and glycine (Gly) on nitrate accumulation and nutritional quality of pakchoi (Brassica chinensis L.) were studied both in summer and in autumn. The result showed that the three amino acids (Glu, Gln, Gly) could significantly enhance yield of shoot and Gln was found to be the best. Better gains of increased yield of shoot were obtained when the amino acids were treated in summer than in autumn. The nitrate content of shoot decreased obviously when amino acids, specially, Glu was used in the two seasons. Both chlorophyll and vitamin C contents were improved by spraying three amino acids and benefits were better in summer than in autumn, too. Of three amino acids, could increase P concentration of shoot in summer and K concentration in autumn significantly. Both Glu and Gly significantly increased Ca and Fe concentration, but all the acids significantly decreased Zn concentration in summer. Gly increased Fe concentration, and Gly and Glu increased Zn concentration significantly, but Gln and Gly decreased Ca concentration and Gln decreased Zn concentration significantly in autumn.

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Claims 13

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The three amino acids Glu, Gln and Gly significantly enhanced shoot yield.

Taxon
Pakchoit0
Treatment
the three amino acids (Glu, Gln, Gly)e1
Outcome
yield of shoote1
Direction
enhancee1

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e1

“the three amino acids (Glu, Gln, Gly) could significantly enhance yield of shoot”

✓ located verbatim in the source · abstract, characters 224–304 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gln gave the best shoot yield among the amino acids.

Taxon
Pakchoit0
Treatment
Glne2
Outcome
yield of shoote1
Direction
the beste2

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e1

“the three amino acids (Glu, Gln, Gly) could significantly enhance yield of shoot”

✓ located verbatim in the source · abstract, characters 224–304 · show in text ↑
e2

“Gln was found to be the best”

✓ located verbatim in the source · abstract, characters 309–337 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Yield gains of shoot were better when amino acids were applied in summer than in autumn.

Taxon
Pakchoit0
Outcome
yield of shoote3
Direction
Better gainse3
Comparator
autumne3
Setting
summere3

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e3

“Better gains of increased yield of shoot were obtained when the amino acids were treated in summer than in autumn”

✓ located verbatim in the source · abstract, characters 339–452 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Amino acids, especially Glu, decreased shoot nitrate content in both seasons.

Taxon
Pakchoit0
Treatment
amino acids, specially, Glue4
Outcome
nitrate content of shoote4
Direction
decreased obviouslye4
Setting
the two seasonse4

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e4

“The nitrate content of shoot decreased obviously when amino acids, specially, Glu was used in the two seasons”

✓ located verbatim in the source · abstract, characters 454–563 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Spraying three amino acids improved chlorophyll and vitamin C contents, with better benefits in summer.

Taxon
Pakchoit0
Treatment
spraying three amino acidse5
Outcome
chlorophyll and vitamin C contentse5
Direction
improvede5
Qualifier
benefits were better in summer than in autumne5

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e5

“Both chlorophyll and vitamin C contents were improved by spraying three amino acids and benefits were better in summer than in autumn”

✓ located verbatim in the source · abstract, characters 565–698 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Three amino acids significantly increased shoot P concentration in summer.

Taxon
Pakchoit0
Treatment
three amino acidse6
Outcome
P concentration of shoote6
Direction
increasee6
Setting
in summere6

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e6

“Of three amino acids, could increase P concentration of shoot in summer and K concentration in autumn significantly”

✓ located verbatim in the source · abstract, characters 705–820 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Three amino acids significantly increased shoot K concentration in autumn.

Taxon
Pakchoit0
Treatment
three amino acidse6
Outcome
K concentratione6
Direction
increasee6
Setting
in autumne6

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e6

“Of three amino acids, could increase P concentration of shoot in summer and K concentration in autumn significantly”

✓ located verbatim in the source · abstract, characters 705–820 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Glu and Gly significantly increased shoot Ca and Fe concentration in summer.

Taxon
Pakchoit0
Treatment
Glu and Glye7
Outcome
Ca and Fe concentratione7
Direction
increasede7
Setting
in summere7

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e7

“Both Glu and Gly significantly increased Ca and Fe concentration, but all the acids significantly decreased Zn concentration in summer”

✓ located verbatim in the source · abstract, characters 822–956 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

All the acids significantly decreased shoot Zn concentration in summer.

Taxon
Pakchoit0
Treatment
all the acidse7
Outcome
Zn concentratione7
Direction
decreasede7
Setting
in summere7

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e7

“Both Glu and Gly significantly increased Ca and Fe concentration, but all the acids significantly decreased Zn concentration in summer”

✓ located verbatim in the source · abstract, characters 822–956 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Gly increased shoot Fe concentration in autumn.

Taxon
Pakchoit0
Treatment
Glye7
Outcome
Fe concentratione7
Direction
increasede7
Setting
in autumne7

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e7

“Gly increased Fe concentration, and Gly and Glu increased Zn concentration significantly, but Gln and Gly decreased Ca concentration and Gln decreased Zn concentration significantly in autumn”

✓ located verbatim in the source · abstract, characters 958–1149 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Gly and Glu significantly increased shoot Zn concentration in autumn.

Taxon
Pakchoit0
Treatment
Gly and Glue7
Outcome
Zn concentratione7
Direction
increasede7
Setting
in autumne7

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e7

“Gly increased Fe concentration, and Gly and Glu increased Zn concentration significantly, but Gln and Gly decreased Ca concentration and Gln decreased Zn concentration significantly in autumn”

✓ located verbatim in the source · abstract, characters 958–1149 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Gln and Gly decreased shoot Ca concentration in autumn.

Taxon
Pakchoit0
Treatment
Gln and Glye7
Outcome
Ca concentratione7
Direction
decreasede7
Setting
in autumne7

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e7

“Gly increased Fe concentration, and Gly and Glu increased Zn concentration significantly, but Gln and Gly decreased Ca concentration and Gln decreased Zn concentration significantly in autumn”

✓ located verbatim in the source · abstract, characters 958–1149 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Gln significantly decreased shoot Zn concentration in autumn.

Taxon
Pakchoit0
Treatment
Glne7
Outcome
Zn concentratione7
Direction
decreasede7
Setting
in autumne7

Not reportedComparator

Verbatim

t0

“Variation of Nutritional Quality in Pakchoi”

✓ located verbatim in the source · title, characters 25–68 · show in text ↑
e7

“Gly increased Fe concentration, and Gly and Glu increased Zn concentration significantly, but Gln and Gly decreased Ca concentration and Gln decreased Zn concentration significantly in autumn”

✓ located verbatim in the source · abstract, characters 958–1149 · show in text ↑

application · physiology: pigments · Brassica rapa (field mustard)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

2 papers more in this group

See all 6 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.