Paper · 2018 · Journal of Pharmacognosy and Phytochemistry

Effect of defoliation on source-sink relationship in groundnut (Arachis hypogaea L.)

Geetha

10
claims
20
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

A field investigation was taken up in groundnut variety Kadiri-6 to study the effect of defoliation on source sink relationship at Regional Agricultural Research Station, PJTSAU, Palem for two consecutive years i.e. Kharif, 2015 and Kharif, 2016. Defoliation was practiced at 90 DAS. Out of the five treatments, no defoliation has given best results over other four defoliation treatments. Among the two years 2015, 2016 and pooled, lower values were registered as the intensity of defoliation increased for all the characters. Near to zero values were registered for leaf area and leaf mass in 100 defoliation. For shoot mass (g/plant), root mass (g/plant), pod yield per plant (g/plant) and pod mass per plant (g/plant), among two years 2015, 2016 and pooled analysis, pod mass was highest in no defoliation followed by 25%, 50% and 75 % levels of defoliation. The lowest pod mass per plant was recorded in severe (100%) defoliation. The moderate and severe defoliation treatments significantly reduced all characters. Defoliation reduced the dry weight of root, shoot and pod mass. The adverse effect of defoliation was more pronounced when defoliation was complete than when half of the number of leaves were removed. The greatest reduction in yield occurred when the plants were defoliated during the early pod stage. Hence, in ground nut variety Kadiri - 6, no defoliation is the best to practice in realizing more pod yield per plant than defoliation.

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 resultpositivemeasured

Claim · model-written summary

No defoliation gave the best results compared with the other four defoliation treatments in groundnut.

Taxon
groundnutArachis hypogaeat0
Treatment
no defoliatione2
Outcome
best resultse2
Direction
beste2
Comparator
other four defoliation treatmentse2

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“in groundnut (Arachis hypogaea L.)”

✓ located verbatim in the source · title, characters 50–84 · show in text ↑
e2

“Out of the five treatments, no defoliation has given best results over other four defoliation treatments”

✓ located verbatim in the source · abstract, characters 284–388 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Lower values were recorded for all characters as defoliation intensity increased.

Taxon
groundnutArachis hypogaeat0
Treatment
intensity of defoliatione3
Outcome
all the characterse3
Direction
lower valuese3
Qualifier
Among the two years 2015, 2016 and poolede3

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“in groundnut (Arachis hypogaea L.)”

✓ located verbatim in the source · title, characters 50–84 · show in text ↑
e3

“Among the two years 2015, 2016 and pooled, lower values were registered as the intensity of defoliation increased for all the characters”

✓ located verbatim in the source · abstract, characters 390–526 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Leaf area and leaf mass were near zero under 100 % defoliation.

Taxon
groundnutArachis hypogaeat0
Treatment
100 defoliatione4
Outcome
leaf area and leaf masse4
Qualifier
Near to zero valuese4

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“in groundnut (Arachis hypogaea L.)”

✓ located verbatim in the source · title, characters 50–84 · show in text ↑
e4

“Near to zero values were registered for leaf area and leaf mass in 100 defoliation”

✓ located verbatim in the source · abstract, characters 528–610 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pod mass was highest with no defoliation, followed by the 25 %, 50 % and 75 % defoliation levels.

Taxon
groundnutArachis hypogaeat0
Treatment
levels of defoliatione5
Outcome
pod masse5
Direction
higheste5
Comparator
no defoliatione5

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“in groundnut (Arachis hypogaea L.)”

✓ located verbatim in the source · title, characters 50–84 · show in text ↑
e5

“pod mass was highest in no defoliation followed by 25%, 50% and 75 % levels of defoliation”

✓ located verbatim in the source · abstract, characters 771–861 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Severe (100 %) defoliation gave the lowest pod mass per plant.

Taxon
groundnutArachis hypogaeat0
Treatment
severe (100%) defoliatione6
Outcome
pod mass per plante6
Direction
loweste6

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“in groundnut (Arachis hypogaea L.)”

✓ located verbatim in the source · title, characters 50–84 · show in text ↑
e6

“The lowest pod mass per plant was recorded in severe (100%) defoliation”

✓ located verbatim in the source · abstract, characters 863–934 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Moderate and severe defoliation significantly reduced all characters.

Taxon
groundnutArachis hypogaeat0
Treatment
moderate and severe defoliatione7
Outcome
all characterse7
Direction
reducede7

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“in groundnut (Arachis hypogaea L.)”

✓ located verbatim in the source · title, characters 50–84 · show in text ↑
e7

“The moderate and severe defoliation treatments significantly reduced all characters”

✓ located verbatim in the source · abstract, characters 936–1019 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Defoliation reduced dry weight of root, shoot and pod mass in groundnut.

Taxon
groundnutArachis hypogaeat0
Treatment
Defoliatione1
Outcome
dry weight of root, shoot and pod masse1
Direction
reducede1

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“in groundnut (Arachis hypogaea L.)”

✓ located verbatim in the source · title, characters 50–84 · show in text ↑
e1

“Defoliation reduced the dry weight of root, shoot and pod mass”

✓ located verbatim in the source · abstract, characters 1021–1083 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The adverse effect of complete defoliation was more pronounced than that of removing half of the leaves.

Taxon
groundnutArachis hypogaeat0
Treatment
defoliation was completee1
Outcome
adverse effect of defoliatione1
Direction
more pronouncede1
Comparator
when half of the number of leaves were removede1

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“in groundnut (Arachis hypogaea L.)”

✓ located verbatim in the source · title, characters 50–84 · show in text ↑
e1

“The adverse effect of defoliation was more pronounced when defoliation was complete than when half of the number of leaves were removed”

✓ located verbatim in the source · abstract, characters 1085–1220 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Defoliation during the early pod stage caused the greatest yield reduction in groundnut.

Taxon
groundnutArachis hypogaeat0
Organ / stage
early pod stagee1
Treatment
defoliated during the early pod stagee1
Outcome
yielde1
Direction
greatest reductione1

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“in groundnut (Arachis hypogaea L.)”

✓ located verbatim in the source · title, characters 50–84 · show in text ↑
e1

“The greatest reduction in yield occurred when the plants were defoliated during the early pod stage”

✓ located verbatim in the source · abstract, characters 1222–1321 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

No defoliation is recommended in groundnut variety Kadiri-6 to realize more pod yield per plant.

Taxon
groundnutArachis hypogaeat0
Material
Kadiri - 6e1
Treatment
no defoliatione1
Outcome
pod yield per plante1

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“in groundnut (Arachis hypogaea L.)”

✓ located verbatim in the source · title, characters 50–84 · show in text ↑
e1

“Hence, in ground nut variety Kadiri - 6, no defoliation is the best to practice in realizing more pod yield per plant than defoliation”

✓ located verbatim in the source · abstract, characters 1323–1457 · show in text ↑

pruning · yield · Arachis hypogaea (peanut)Results differ

19 papers: 7 positive, 12 negative or no effect

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

  1. positive
  2. positive
  3. positive

15 papers more in this group

See all 19 papers →

pruning · pest · Arachis hypogaea (peanut)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

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

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

pruning · growth · Arachis hypogaea (peanut)Positive and negative results

12 papers: 6 positive, 6 negative or no effect

5 papers in the same direction as this paper · 6 in the opposite direction

  1. positive
  2. positive
  3. positive

8 papers more in this group

See all 12 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.