Paper · 2008 · Journal of Horticultural Sciences

Cumulative and Residual Effects of Paclobutrazol on Growth, Yield and Fruit Quality of 'Alphonso' Mango

Y T N Reddy; Reju M Kurian

6
claims
11
verbatim quotes
20
citations
3
research areas
✓
Open access · cc-by-nc-sa

Abstract

A field experiment was conducted during 1996 to 2002 at Indian Institute of Horticultural Research, Bangalore, to study the cumulative and residual effects of paclobutrazol (PBZ) application on shoot vigour, flowering and fruit yield of seventeen years old 'Alphonso' mango trees. Foliar sprays of the chemical at 500, 1000 or 2000 ppm or soil drench at 5 or 10 g a. i. per tree was given during September for three consecutive years and the residual effects were observed for three more subsequent years. Application of PBZ as soil drench was more effective than its foliar spray and doubled fruit yield during the six years. Chemical parameters of fruits such as TSS and acidity were not affected by the treatments but average weight of a fruit was less in the case of PBZ treatments. Residual influence of this chemical, when applied as soil drench, persisted in the three years following the discontinuation of application for three consecutive years, indicating the scope for skipping the application of PBZ or tapering down its dose after three years of its continuous application. From the results of this study, application of paclobutrazol at 5 g a.i. per tree as soil drench for three consecutive years and then its discontinuation for the subsequent three years appears to be most appropriate for 'Alphonso' mango trees in the age group of about 15 to 25 years.

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 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil drenching was more effective than foliar spraying.

Material
'Alphonso't0
Treatment
PBZ as soil drenche0
Outcome
more effectivee0
Direction
more effectivee0
Comparator
foliar spraye0

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

Mangifera indica
Mangifera indica · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of PBZ as soil drench was more effective than its foliar spray”

✓ located verbatim in the source · abstract, characters 506–580 · show in text ↑
t0

“'Alphonso' Mango”

✓ located verbatim in the source · title, characters 87–103 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil-drenched PBZ doubled mango fruit yield over six years.

Material
'Alphonso't0
Treatment
PBZ as soil drenche0
Outcome
fruit yielde0
Direction
doublede0
Value
doublede0
Qualifier
six yearse0

Not reportedComparator

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

Mangifera indica
Mangifera indica · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of PBZ as soil drench was more effective than its foliar spray and doubled fruit yield during the six years.”

✓ located verbatim in the source · abstract, characters 506–626 · show in text ↑
t0

“'Alphonso' Mango”

✓ located verbatim in the source · title, characters 87–103 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

PBZ treatments did not affect fruit TSS or acidity.

Material
'Alphonso't0
Treatment
treatmentse0
Outcome
TSS and aciditye0
Direction
not affectede0

Not reportedComparator

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

Mangifera indica
Mangifera indica · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Chemical parameters of fruits such as TSS and acidity were not affected by the treatments”

✓ located verbatim in the source · abstract, characters 627–716 · show in text ↑
t0

“'Alphonso' Mango”

✓ located verbatim in the source · title, characters 87–103 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

PBZ treatments reduced average fruit weight.

Material
'Alphonso't0
Treatment
PBZ treatmentse0
Outcome
average weight of a fruite0
Direction
lesse0

Not reportedComparator

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

Mangifera indica
Mangifera indica · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“average weight of a fruit was less in the case of PBZ treatments”

✓ located verbatim in the source · abstract, characters 721–785 · show in text ↑
t0

“'Alphonso' Mango”

✓ located verbatim in the source · title, characters 87–103 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Soil-drenched PBZ retained residual influence for three years after three consecutive applications.

Material
'Alphonso't0
Treatment
soil drenche0
Outcome
Residual influencee0
Direction
persistede0
Qualifier
three years following the discontinuation of application for three consecutive yearse0

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

Mangifera indica
Mangifera indica · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Residual influence of this chemical, when applied as soil drench, persisted in the three years following the discontinuation of application for three consecutive years”

✓ located verbatim in the source · abstract, characters 787–954 · show in text ↑
t0

“'Alphonso' Mango”

✓ located verbatim in the source · title, characters 87–103 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend 5 g paclobutrazol soil drench for three years followed by three years without application in Alphonso mango aged about 15–25 years.

Material
'Alphonso'e0
Treatment
paclobutrazol at 5 g a.i. per tree as soil drenche0
Outcome
application of paclobutrazol at 5 g a.i. per tree as soil drench for three consecutive years and then its discontinuation for the subsequent three yearse0
Qualifier
age group of about 15 to 25 yearse0

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

Mangifera indica
Mangifera indica · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“application of paclobutrazol at 5 g a.i. per tree as soil drench for three consecutive years and then its discontinuation for the subsequent three years appears to be most appropriate for 'Alphonso' mango trees in the age group of about 15 to 25 years.”

✓ located verbatim in the source · abstract, characters 1120–1372 · show in text ↑

paclobutrazol · yield · Mangifera indica (mango)Results differ

51 papers: 44 positive, 7 negative or no effect

43 papers in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. positive
  3. positive

47 papers more in this group

See all 51 papers →

application · yield · Mangifera indica (mango)Positive and negative results

85 papers: 80 positive, 5 negative or no effect

79 papers in the same direction as this paper · 5 in the opposite direction

  1. no effect
  2. negative
  3. negative

81 papers more in this group

See all 85 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.