Paper · 2020 · International Journal of Current Microbiology and Applied Sciences

Influence of Chitosan Foliar Application on Quality and Biochemical Traits of Strawberry (Fragaria × ananassa Duch.) under Naturally Ventilated Polyhouse

K. M. Nithin; D. Madaiah; B. S. Shivakumar; et al.

12
claims
36
verbatim quotes
5
citations
2
research areas
✓
Open access · cc-by-nc-sa

Abstract

An experiment was conducted to know the effect of foliar application of chitosan with different concentrations and number of applications (once, twice and three times) on quality and biochemical traits of strawberry (var. Winter Dawn) during 2019-2020. Among the treatments tested,Chitosan spray 3 g l-1 at 45, 90 and 135 DAP recorded comparatively better biochemical traits of fruit viz., Total Soluble Solids (7.96 Brix), chlorophyll-a (1.85 mg g-1), chlorophyll-b (0.59 mg g-1)and decreased physiological loss in weight (PLW) (3.45 %). On the contrary, Chitosan spray 2 g l-1 at 45, 90 and 135 DAP recorded maximum reducing sugar (4.79 %), non-reducing sugar (1.65 %), total sugar (6.44 %) and antioxidants (413.42 µg BHT g-1fruit). While the ascorbic acid (53.29 mg 100 g-1) and anthocyanin content (54.69 mg 100 g-1) found maximum in Chitosan spray 3 g l-1 at 45 DAP with minimum titratable acidity (0.86 %). From this study, it was concluded that foliar application of chitosan thrice at 3 g l-1 with 45 days interval was found better (fruit yield per plant 366.17 g) followed by foliar application of chitosan thrice at 2 g l-1.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-sa. 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 12

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan spray at 3 g/l at 45, 90 and 135 DAP gave comparatively better total soluble solids, at 7.96 Brix.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
Chitosan spray 3 g l-1 at 45, 90 and 135 DAPe2
Outcome
Total Soluble Solidse2
Direction
bettere2
Value
7.96 Brixe2
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e2

“Chitosan spray 3 g l-1 at 45, 90 and 135 DAP recorded comparatively better biochemical traits of fruit viz., Total Soluble Solids (7.96 Brix), chlorophyll-a (1.85 mg g-1), chlorophyll-b (0.59 mg g-1)and decreased physiological loss in weight (PLW) (3.45 %)”

✓ located verbatim in the source · abstract, characters 281–537 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan spray at 3 g/l at 45, 90 and 135 DAP gave comparatively better chlorophyll-a, at 1.85 mg g-1.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
Chitosan spray 3 g l-1 at 45, 90 and 135 DAPe2
Outcome
chlorophyll-ae2
Direction
bettere2
Value
1.85 mg g-1e2
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e2

“Chitosan spray 3 g l-1 at 45, 90 and 135 DAP recorded comparatively better biochemical traits of fruit viz., Total Soluble Solids (7.96 Brix), chlorophyll-a (1.85 mg g-1), chlorophyll-b (0.59 mg g-1)and decreased physiological loss in weight (PLW) (3.45 %)”

✓ located verbatim in the source · abstract, characters 281–537 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan spray at 3 g/l at 45, 90 and 135 DAP gave comparatively better chlorophyll-b, at 0.59 mg g-1.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
Chitosan spray 3 g l-1 at 45, 90 and 135 DAPe2
Outcome
chlorophyll-be2
Direction
bettere2
Value
0.59 mg g-1e2
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e2

“Chitosan spray 3 g l-1 at 45, 90 and 135 DAP recorded comparatively better biochemical traits of fruit viz., Total Soluble Solids (7.96 Brix), chlorophyll-a (1.85 mg g-1), chlorophyll-b (0.59 mg g-1)and decreased physiological loss in weight (PLW) (3.45 %)”

✓ located verbatim in the source · abstract, characters 281–537 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan spray at 3 g/l at 45, 90 and 135 DAP decreased physiological loss in weight, at 3.45 %.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
Chitosan spray 3 g l-1 at 45, 90 and 135 DAPe2
Outcome
physiological loss in weighte2
Direction
decreasede2
Value
3.45 %e2
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e2

“Chitosan spray 3 g l-1 at 45, 90 and 135 DAP recorded comparatively better biochemical traits of fruit viz., Total Soluble Solids (7.96 Brix), chlorophyll-a (1.85 mg g-1), chlorophyll-b (0.59 mg g-1)and decreased physiological loss in weight (PLW) (3.45 %)”

✓ located verbatim in the source · abstract, characters 281–537 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan spray at 2 g/l at 45, 90 and 135 DAP gave maximum reducing sugar, at 4.79 %.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
Chitosan spray 2 g l-1 at 45, 90 and 135 DAPe3
Outcome
reducing sugare3
Direction
maximume3
Value
4.79 %e3
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e3

“Chitosan spray 2 g l-1 at 45, 90 and 135 DAP recorded maximum reducing sugar (4.79 %), non-reducing sugar (1.65 %), total sugar (6.44 %) and antioxidants (413.42 µg BHT g-1fruit)”

✓ located verbatim in the source · abstract, characters 556–734 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan spray at 2 g/l at 45, 90 and 135 DAP gave maximum non-reducing sugar, at 1.65 %.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
Chitosan spray 2 g l-1 at 45, 90 and 135 DAPe3
Outcome
non-reducing sugare3
Direction
maximume3
Value
1.65 %e3
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e3

“Chitosan spray 2 g l-1 at 45, 90 and 135 DAP recorded maximum reducing sugar (4.79 %), non-reducing sugar (1.65 %), total sugar (6.44 %) and antioxidants (413.42 µg BHT g-1fruit)”

✓ located verbatim in the source · abstract, characters 556–734 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan spray at 2 g/l at 45, 90 and 135 DAP gave maximum total sugar, at 6.44 %.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
Chitosan spray 2 g l-1 at 45, 90 and 135 DAPe3
Outcome
total sugare3
Direction
maximume3
Value
6.44 %e3
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e3

“Chitosan spray 2 g l-1 at 45, 90 and 135 DAP recorded maximum reducing sugar (4.79 %), non-reducing sugar (1.65 %), total sugar (6.44 %) and antioxidants (413.42 µg BHT g-1fruit)”

✓ located verbatim in the source · abstract, characters 556–734 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan spray at 2 g/l at 45, 90 and 135 DAP gave maximum antioxidants, at 413.42 µg BHT g-1 fruit.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
Chitosan spray 2 g l-1 at 45, 90 and 135 DAPe3
Outcome
antioxidantse3
Direction
maximume3
Value
413.42 µg BHT g-1fruite3
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e3

“Chitosan spray 2 g l-1 at 45, 90 and 135 DAP recorded maximum reducing sugar (4.79 %), non-reducing sugar (1.65 %), total sugar (6.44 %) and antioxidants (413.42 µg BHT g-1fruit)”

✓ located verbatim in the source · abstract, characters 556–734 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan spray at 3 g/l at 45 DAP gave maximum ascorbic acid, at 53.29 mg 100 g-1.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
Chitosan spray 3 g l-1 at 45 DAPe4
Outcome
ascorbic acide4
Direction
maximume4
Value
53.29 mg 100 g-1e4
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e4

“ascorbic acid (53.29 mg 100 g-1) and anthocyanin content (54.69 mg 100 g-1) found maximum in Chitosan spray 3 g l-1 at 45 DAP”

✓ located verbatim in the source · abstract, characters 746–871 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chitosan spray at 3 g/l at 45 DAP gave maximum anthocyanin content, at 54.69 mg 100 g-1.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
Chitosan spray 3 g l-1 at 45 DAPe4
Outcome
anthocyanin contente4
Direction
maximume4
Value
54.69 mg 100 g-1e4
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e4

“ascorbic acid (53.29 mg 100 g-1) and anthocyanin content (54.69 mg 100 g-1) found maximum in Chitosan spray 3 g l-1 at 45 DAP”

✓ located verbatim in the source · abstract, characters 746–871 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Chitosan spray at 3 g/l at 45 DAP gave minimum titratable acidity, at 0.86 %.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
Chitosan spray 3 g l-1 at 45 DAPe6
Outcome
titratable aciditye6
Direction
minimume6
Value
0.86 %e6
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e6

“found maximum in Chitosan spray 3 g l-1 at 45 DAP with minimum titratable acidity (0.86 %)”

✓ located verbatim in the source · abstract, characters 822–912 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar chitosan applied thrice at 3 g/l with a 45-day interval gave better fruit yield per plant, at 366.17 g, followed by thrice at 2 g/l.

Taxon
strawberryFragaria ×ananassae1
Material
Winter Dawne1
Treatment
foliar application of chitosan thrice at 3 g l-1 with 45 days intervale7
Outcome
fruit yield per plante7
Direction
bettere7
Value
366.17 ge7
Qualifier
followed by foliar application of chitosan thrice at 2 g l-1e7
Comparator
Among the treatments testede0

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the treatments tested”

✓ located verbatim in the source · abstract, characters 253–280 · show in text ↑
e1

“strawberry (var. Winter Dawn)”

✓ located verbatim in the source · abstract, characters 205–234 · show in text ↑
e7

“foliar application of chitosan thrice at 3 g l-1 with 45 days interval was found better (fruit yield per plant 366.17 g) followed by foliar application of chitosan thrice at 2 g l-1”

✓ located verbatim in the source · abstract, characters 953–1134 · show in text ↑

chitosan · quality: phytochemicals · Fragaria x ananassa (strawberry)Results differ

25 papers: 24 positive, 1 negative or no effect

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

  1. positive
  2. positive
  3. no effect

21 papers more in this group

See all 25 papers →

chitosan · quality: sugar starch · Fragaria x ananassa (strawberry)Results differ

30 papers: 28 positive, 2 negative or no effect

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

  1. positive
  2. negative
  3. no effect

26 papers more in this group

See all 30 papers →

chitosan · molecular: metabolites · Fragaria x ananassa (strawberry)Positive and negative results

14 papers: 13 positive, 1 negative or no effect

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

  1. positive
  2. negative
  3. positive

10 papers more in this group

See all 14 papers →

chitosan · quality: postharvest · Fragaria x ananassa (strawberry)Positive and negative results

48 papers: 47 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

44 papers more in this group

See all 48 papers →

chitosan · physiology: pigments · Fragaria x ananassa (strawberry)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

chitosan · yield · Fragaria x ananassa (strawberry)Results agree

12 papers: 12 positive, 0 negative or no effect

11 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

application · molecular: metabolites · Fragaria x ananassa (strawberry)Positive and negative results

19 papers: 16 positive, 3 negative or no effect

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

  1. no effect
  2. negative
  3. no effect

15 papers more in this group

See all 19 papers →

application · quality: phytochemicals · Fragaria x ananassa (strawberry)Positive and negative results

19 papers: 18 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

15 papers more in this group

See all 19 papers →

8 of 12 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.