Paper · 2016 · Madras Agricultural Journal

Exploitation of Antibiotics and Biocontrol Agents for the Management of Root (Wilt) Disease in Coconut Palms

Ramjegathesh R; Karthikeyan G; Raguchander T; et al.

5
claims
10
verbatim quotes
0
citations
4
research areas
—
Not open access

Abstract

Antibiotics (oxytetracycline hydrochloride) and bioconsortia Pseudomonas fluorescens strain (Pf1), Bacillus subtilis (EPC 5) and Trichoderma viride (Tv1) were used to evaluate their efficacy against the root (wilt) disease in coconut under two different field conditions. Field trial was conducted at hot spot area of the disease with a local ‘Tall’ variety of coconut. The results revealed that the root feeding of 100 ml of oxytetracycline hydrochloride @ 1000 ppm at monthly intervals up to one year resulted in the remission of root (wilt) disease symptoms in addition to increasing the nut yield compared to untreated control palms. This treatment was followed by the soil application of bioconsortia (Pf1+EPC5+Tv @ 100 g each+ 5 kg FYM/palm). Biochemical and physiological analysis revealed that the chlorophyll and soluble protein content were found to be increased and the stomatal resistance was found to be reduced in the bioconsortia (Pf1+EPC5+Tv) treated palms compared to control palms.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Monthly oxytetracycline root feeding remitted coconut root wilt symptoms relative to untreated palms.

Taxon
coconute1
Treatment
root feeding of 100 ml of oxytetracycline hydrochloride @ 1000 ppm at monthly intervals up to one yeare0
Outcome
root (wilt) disease symptomse0
Comparator
untreated control palmse0

Not reportedDirection

Verbatim

e0

“root feeding of 100 ml of oxytetracycline hydrochloride @ 1000 ppm at monthly intervals up to one year resulted in the remission of root (wilt) disease symptoms in addition to increasing the nut yield compared to untreated control palms”

✓ located verbatim in the source · abstract, characters 400–636 · show in text ↑
e1

“root (wilt) disease in coconut”

✓ located verbatim in the source · abstract, characters 203–233 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Monthly oxytetracycline root feeding increased coconut nut yield versus untreated palms.

Taxon
coconute1
Treatment
root feeding of 100 ml of oxytetracycline hydrochloride @ 1000 ppm at monthly intervals up to one yeare0
Outcome
nut yielde0
Direction
increasinge0
Comparator
untreated control palmse0

Verbatim

e0

“root feeding of 100 ml of oxytetracycline hydrochloride @ 1000 ppm at monthly intervals up to one year resulted in the remission of root (wilt) disease symptoms in addition to increasing the nut yield compared to untreated control palms”

✓ located verbatim in the source · abstract, characters 400–636 · show in text ↑
e1

“root (wilt) disease in coconut”

✓ located verbatim in the source · abstract, characters 203–233 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil-applied bioconsortia ranked behind oxytetracycline root feeding.

Taxon
coconute1
Treatment
soil application of bioconsortia (Pf1+EPC5+Tv @ 100 g each+ 5 kg FYM/palm)e0
Outcome
followede0
Direction
followede0

Verbatim

e0

“This treatment was followed by the soil application of bioconsortia (Pf1+EPC5+Tv @ 100 g each+ 5 kg FYM/palm)”

✓ located verbatim in the source · abstract, characters 638–747 · show in text ↑
e1

“root (wilt) disease in coconut”

✓ located verbatim in the source · abstract, characters 203–233 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bioconsortia increased coconut chlorophyll and soluble protein content relative to controls.

Taxon
coconute1
Treatment
bioconsortia (Pf1+EPC5+Tv)e0
Outcome
chlorophyll and soluble protein contente0
Direction
increasede0
Comparator
control palmse0

Verbatim

e0

“chlorophyll and soluble protein content were found to be increased and the stomatal resistance was found to be reduced in the bioconsortia (Pf1+EPC5+Tv) treated palms compared to control palms”

✓ located verbatim in the source · abstract, characters 806–998 · show in text ↑
e1

“root (wilt) disease in coconut”

✓ located verbatim in the source · abstract, characters 203–233 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bioconsortia reduced coconut stomatal resistance relative to controls.

Taxon
coconute1
Treatment
bioconsortia (Pf1+EPC5+Tv)e0
Outcome
stomatal resistancee0
Direction
reducede0
Comparator
control palmse0

Verbatim

e0

“chlorophyll and soluble protein content were found to be increased and the stomatal resistance was found to be reduced in the bioconsortia (Pf1+EPC5+Tv) treated palms compared to control palms”

✓ located verbatim in the source · abstract, characters 806–998 · show in text ↑
e1

“root (wilt) disease in coconut”

✓ located verbatim in the source · abstract, characters 203–233 · show in text ↑

infection · disease · Cocos nucifera (coconut palm)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

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

  1. negative
  2. positive
    Aureofungin-sol root feeding with Bordeaux drenching and neem cake achieved the lowest disease index.

    Management of basal stem rot of coconut · 2001 · compared with tridemorph root feeding (2%) + soil drenching (0.1%) at quarterly interval along with soil application of neem cake at 5 kg/palm/year

    Same direction

  3. positive
See all 4 papers →

infection · yield · Cocos nucifera (coconut palm)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 →

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.