Paper · 2002 · Indian Journal of Horticulture

Changes in brinjal (Solanum melongena L.) physiology by calcium deficiency

Pratima Sinha; B. K. Dube; C. Chaiterjee

10
claims
20
verbatim quotes
1
citations
2
research areas
✓
Open access

Abstract

Calcium deficiency was induced in brinjal (Solanum melongena L.) cv. PPL by growing the plants till maturity in refined sand at two deficient (0.05 and 2.0 meq litre) and an adequate (8.0 meq/litre) level of calcium. Plants grown at low Ca (0.05 meq/litre) developed visible effects (48 days after sowing) as irregular chlorotic lesion on young leaves, which increased in site, coalesced and formed bigger patches. Later, these symptoms gradually proceeded downward. Calcium deficiency depressed the growth of brinjat, flower and fruit formation, The fruits were smaller, deformed, reduced in weight, length, width and volume. The biomass, concentration of calcium in leaves and fruits, contents of chlorophylls, sugars and starch were reduced and that of concentration of phenols and nitrate nitrogen increased significantly in calcium deficient brinjal. Low calcium also decreased the activity of peroxidase, ATPase, invertase and a-amylase in brinjal leaves.

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 10

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Calcium deficiency depressed the growth of brinjal.

Material
cv. PPLe0
Treatment
Calcium deficiencye0
Outcome
growthe1
Direction
depressede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Calcium deficiency was induced in brinjal (Solanum melongena L.) cv. PPL”

✓ located verbatim in the source · abstract, characters 0–72 · show in text ↑
e1

“Calcium deficiency depressed the growth of brinjat, flower and fruit formation”

✓ located verbatim in the source · abstract, characters 467–545 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Calcium deficiency depressed brinjal flower and fruit formation.

Material
cv. PPLe0
Treatment
Calcium deficiencye0
Outcome
flower and fruit formatione1
Direction
depressede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Calcium deficiency was induced in brinjal (Solanum melongena L.) cv. PPL”

✓ located verbatim in the source · abstract, characters 0–72 · show in text ↑
e1

“Calcium deficiency depressed the growth of brinjat, flower and fruit formation”

✓ located verbatim in the source · abstract, characters 467–545 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Fruits of calcium-deficient brinjal were smaller and deformed.

Organ / stage
fruitse2
Treatment
Calcium deficiencye0
Outcome
fruitse2
Direction
smallere2
Qualifier
deformede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Calcium deficiency was induced in brinjal (Solanum melongena L.) cv. PPL”

✓ located verbatim in the source · abstract, characters 0–72 · show in text ↑
e2

“The fruits were smaller, deformed, reduced in weight, length, width and volume”

✓ located verbatim in the source · abstract, characters 547–625 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Plants grown at low calcium developed irregular chlorotic lesions on young leaves.

Material
cv. PPLe0
Organ / stage
young leavese3
Treatment
low Ca (0.05 meq/litre)e3
Outcome
irregular chlorotic lesion on young leavese3

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Calcium deficiency was induced in brinjal (Solanum melongena L.) cv. PPL”

✓ located verbatim in the source · abstract, characters 0–72 · show in text ↑
e3

“Plants grown at low Ca (0.05 meq/litre) developed visible effects (48 days after sowing) as irregular chlorotic lesion on young leaves”

✓ located verbatim in the source · abstract, characters 217–351 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Calcium deficiency reduced brinjal biomass.

Treatment
Calcium deficiencye0
Outcome
biomasse4
Direction
reducede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Calcium deficiency was induced in brinjal (Solanum melongena L.) cv. PPL”

✓ located verbatim in the source · abstract, characters 0–72 · show in text ↑
e4

“The biomass, concentration of calcium in leaves and fruits, contents of chlorophylls, sugars and starch were reduced”

✓ located verbatim in the source · abstract, characters 627–743 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Calcium deficiency reduced calcium concentration in brinjal leaves and fruits.

Treatment
Calcium deficiencye0
Outcome
concentration of calcium in leaves and fruitse4
Direction
reducede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Calcium deficiency was induced in brinjal (Solanum melongena L.) cv. PPL”

✓ located verbatim in the source · abstract, characters 0–72 · show in text ↑
e4

“The biomass, concentration of calcium in leaves and fruits, contents of chlorophylls, sugars and starch were reduced”

✓ located verbatim in the source · abstract, characters 627–743 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Calcium deficiency reduced chlorophyll, sugar and starch contents in brinjal.

Treatment
Calcium deficiencye0
Outcome
contents of chlorophylls, sugars and starche4
Direction
reducede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Calcium deficiency was induced in brinjal (Solanum melongena L.) cv. PPL”

✓ located verbatim in the source · abstract, characters 0–72 · show in text ↑
e4

“The biomass, concentration of calcium in leaves and fruits, contents of chlorophylls, sugars and starch were reduced”

✓ located verbatim in the source · abstract, characters 627–743 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Calcium deficiency significantly increased phenol and nitrate nitrogen concentrations in brinjal.

Treatment
Calcium deficiencye0
Outcome
concentration of phenols and nitrate nitrogene5
Direction
increasede5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Calcium deficiency was induced in brinjal (Solanum melongena L.) cv. PPL”

✓ located verbatim in the source · abstract, characters 0–72 · show in text ↑
e5

“that of concentration of phenols and nitrate nitrogen increased significantly in calcium deficient brinjal”

✓ located verbatim in the source · abstract, characters 748–854 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Low calcium decreased the activity of peroxidase, ATPase and invertase in brinjal leaves.

Organ / stage
leavese6
Treatment
Low calciume6
Outcome
activity of peroxidase, ATPase, invertasee6
Direction
decreasede6

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Calcium deficiency was induced in brinjal (Solanum melongena L.) cv. PPL”

✓ located verbatim in the source · abstract, characters 0–72 · show in text ↑
e6

“Low calcium also decreased the activity of peroxidase, ATPase, invertase and a-amylase in brinjal leaves”

✓ located verbatim in the source · abstract, characters 856–960 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Low calcium decreased a-amylase activity in brinjal leaves.

Organ / stage
leavese6
Treatment
Low calciume6
Outcome
a-amylasee6
Direction
decreasede6

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Calcium deficiency was induced in brinjal (Solanum melongena L.) cv. PPL”

✓ located verbatim in the source · abstract, characters 0–72 · show in text ↑
e6

“Low calcium also decreased the activity of peroxidase, ATPase, invertase and a-amylase in brinjal leaves”

✓ located verbatim in the source · abstract, characters 856–960 · show in text ↑

calcium atom · disease · Solanum melongena (eggplant)Positive and negative results

8 papers: 7 positive, 1 negative or no effect

7 in the opposite direction

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

calcium atom · quality: sugar starch · Solanum melongena (eggplant)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

This paper is about lacking the nutrient, so it counts the other way round here.

  1. positive
See all 2 papers →

calcium atom · yield · Solanum melongena (eggplant)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

This paper is about lacking the nutrient, so it counts the other way round here.

  1. positive
  2. positive
  3. positive
See all 4 papers →

calcium atom · molecular: metabolites · Solanum melongena (eggplant)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

This paper is about lacking the nutrient, so it counts the other way round here.

  1. positive
  2. positive
  3. positive
See all 4 papers →

calcium atom · growth · Solanum melongena (eggplant)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

This paper is about lacking the nutrient, so it counts the other way round here.

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 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.