Paper · 2018 · Journal of Pharmacognosy and Phytochemistry

Influence of foliar nutrition at different growth stages on physiological and biochemical parameters of maize (Zea mays L.)

M Naveenaa; A Amaregouda; Meena Mk; et al.

5
claims
9
verbatim quotes
2
citations
2
research areas
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Open access

Abstract

A field experiment was carried out at Agriculture College Farm, Raichur during kharif -2017 to study the influence of foliar nutrition at different growth stages on physiological & biochemical parameters and yield of maize. The experiment was laid out in randomized complete block design (RCBD) with thirteen treatments including the control. The treatments were foliar nutrition of NPK (19:19:19) at 1 per cent, H3BO3 at 0.1 per cent and ZnSO4 at 0.5 per cent along with recommended dose of fertilizer sprayed at different growth stages (V5, V6, V11 and V12). Among the different treatments, foliar application of ZnSO4 (0.5 %) at V6 stage revealed a significant effect on physiological parameters such as photosynthesis rate and normalized difference vegetative index (NDVI) and biochemical parameters viz., chlorophyll a, chlorophyll b, total chlorophyll, reducing and non- reducing sugar content in leaves ultimately leading to increasing in yield. Physiological and biochemical parameters except transpiration rate were increased when foliar nutrition was given at early stages (V5 and V6 stage) than late stage (V11 and V12 stage) of leaf growth. It was concluded from the results that foliar nutrition during 25 to 30 days after sowing could increase maize productivity significantly by increasing physiological and biochemical activity.

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Claims 5

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar ZnSO4 at V6 significantly affected photosynthesis rate and NDVI.

Taxon
maizeZea mayst0
Treatment
foliar application of ZnSO4 (0.5 %) at V6 stagee0
Outcome
photosynthesis rate and normalized difference vegetative index (NDVI)e0

Not reportedComparatorDirection

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“maize (Zea mays L.)”

✓ located verbatim in the source · title, characters 104–123 · show in text ↑
e0

“foliar application of ZnSO4 (0.5 %) at V6 stage revealed a significant effect on physiological parameters such as photosynthesis rate and normalized difference vegetative index (NDVI)”

✓ located verbatim in the source · abstract, characters 593–776 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Foliar ZnSO4 at V6 significantly affected leaf chlorophyll and sugar content.

Taxon
maizeZea mayst0
Treatment
foliar application of ZnSO4 (0.5 %) at V6 stagee0
Outcome
chlorophyll a, chlorophyll b, total chlorophylle0

Not reportedComparatorDirection

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“maize (Zea mays L.)”

✓ located verbatim in the source · title, characters 104–123 · show in text ↑
e0

“foliar application of ZnSO4 (0.5 %) at V6 stage revealed a significant effect on physiological parameters such as photosynthesis rate and normalized difference vegetative index (NDVI) and biochemical parameters viz., chlorophyll a, chlorophyll b, total chlorophyll, reducing and non- reducing sugar content in leaves ultimately leading to increasing in yield.”

✓ located verbatim in the source · abstract, characters 593–952 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar ZnSO4 at V6 increased maize yield.

Taxon
maizeZea mayst0
Treatment
foliar application of ZnSO4 (0.5 %) at V6 stagee0
Outcome
yielde0
Direction
increasinge0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“maize (Zea mays L.)”

✓ located verbatim in the source · title, characters 104–123 · show in text ↑
e0

“foliar application of ZnSO4 (0.5 %) at V6 stage revealed a significant effect on physiological parameters such as photosynthesis rate and normalized difference vegetative index (NDVI) and biochemical parameters viz., chlorophyll a, chlorophyll b, total chlorophyll, reducing and non- reducing sugar content in leaves ultimately leading to increasing in yield.”

✓ located verbatim in the source · abstract, characters 593–952 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Early foliar nutrition increased physiological and biochemical parameters relative to late nutrition, except transpiration rate.

Taxon
maizeZea mayst0
Treatment
foliar nutrition was given at early stages (V5 and V6 stage)e0
Outcome
Physiological and biochemical parameters except transpiration ratee0
Direction
increasede0
Comparator
late stage (V11 and V12 stage)e0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“maize (Zea mays L.)”

✓ located verbatim in the source · title, characters 104–123 · show in text ↑
e0

“Physiological and biochemical parameters except transpiration rate were increased when foliar nutrition was given at early stages (V5 and V6 stage) than late stage (V11 and V12 stage) of leaf growth.”

✓ located verbatim in the source · abstract, characters 953–1152 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivesignificant (as stated)basis n/a

Claim · model-written summary

Authors concluded that foliar nutrition at 25 to 30 days after sowing significantly increases maize productivity.

Taxon
maizeZea mayse0
Outcome
foliar nutrition during 25 to 30 days after sowing could increase maize productivity significantlye0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“foliar nutrition during 25 to 30 days after sowing could increase maize productivity significantly”

✓ located verbatim in the source · abstract, characters 1192–1290 · show in text ↑

zinc sulfate · yield · Zea mays (maize)Results differ

128 papers: 124 positive, 4 negative or no effect

123 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

124 papers more in this group

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zinc sulfate · physiology: photosynthesis · Zea mays (maize)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

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

zinc sulfate · physiology: pigments · Zea mays (maize)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

application · physiology: photosynthesis · Zea mays (maize)Positive and negative results

57 papers: 50 positive, 7 negative or no effect

49 papers in the same direction as this paper · 6 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

53 papers more in this group

See all 57 papers →

application · physiology: pigments · Zea mays (maize)Positive and negative results

89 papers: 84 positive, 5 negative or no effect

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

  1. positive
  2. negative
  3. negative

85 papers more in this group

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application · yield · Zea mays (maize)Positive and negative results

629 papers: 575 positive, 54 negative or no effect

574 papers in the same direction as this paper · 42 in the opposite direction · 12 reporting no difference from an alternative

  1. positive
  2. no effect
  3. no effect

625 papers more in this group

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micronutrient · physiology: gas exchange · Zea mays (maize)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.