Paper · 2007

Enhancing growth of crops with the help of biofertilizers

Jocelyn Zarate; Luiz Fernando; Roberto Visco; et al.

11
claims
11
verbatim quotes
1
citations
4
research areas
—
Not open access

Abstract

The authors are investigating the effect of biofertilizers Mykovam and BioGroe on seedling performance in the nursery and their survival and growth in the field. Biofertilizers Mykovam and BioGroe are trade names for mycorrhiza and Plant Growth Promoting Rhizobacterial (PGPR) inoculants that are low-cost, environment friendly and effective alternatives to chemical fertilizers. Six plant species were inoculated with the biofertilizers in the nursery namely: Jatropha curcas, Acacia Mangium, A. neurocarpa, A. crassicarpa, Casuarina equisetifolia and Swietenia macrophylla. These crops are of prime importance due to their impact on global warming as quenchers of the second most abundant greenhouse gas, carbon dioxide, and secondly, as potential fuel source particularly, J. curcas. Massive plantation establishment is on-going in many areas in the country, more commonly in the marginal sites, hence, seedlings need more than the chemical inputs to persist in the site. Inoculation with BioGroe and Mykovam in the nursery either alone or combined generally promoted taller height of all seedlings of the six host species compared to those without the biofertilizers. After three months in the nursery significant increase in shoot, root and total dry matter production was observed in J. curcas, C. equisetifolia and S. macrophylla when inoculated with single biofertilizers or both. Combined Mykovam and BioGroe inoculation significantly prompted longer root length and greater leaf area of J. curcas that translated to significantly greater Phosphorus content and uptake in the shoots but not in the roots. A. crassicarpa, A. mangium and A. neurocarpa seedlings when inoculated with BioGroe or Mykovam or combined had also greater shoot, root and total biomass but was not statistically significantly different than the uninoculated seedlings. These last three host species being leguminous trees need specific Bradyrhizobium strains for them to fix atmospheric nitrogen and convert to usable forms. Monitoring the growth and seedling survival in the field in on-going. Whether the beneficial effects of biofertilizers inoculation will significantly affect J. curcas seed yield or more importantly oil yield remains to be determined.

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Claims 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculation with BioGroe and Mykovam in the nursery, alone or combined, generally gave taller seedlings of all six host species than seedlings without the biofertilizers.

Taxon
six host speciese0
Treatment
Inoculation with BioGroe and Mykovame0
Interactor
Mykovame0symbiont
Second interactor
BioGroee0symbiont
Outcome
heighte0
Direction
tallere0
Comparator
those without the biofertilizerse0

Verbatim

e0

“Inoculation with BioGroe and Mykovam in the nursery either alone or combined generally promoted taller height of all seedlings of the six host species compared to those without the biofertilizers”

✓ located verbatim in the source · abstract, characters 975–1170 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

After three months in the nursery, inoculation with single biofertilizers or both significantly increased shoot, root and total dry matter production in Jatropha curcas.

Taxon
J. curcasJatropha curcase0
Treatment
inoculated with single biofertilizers or bothe0
Outcome
shoot, root and total dry matter productione0
Direction
increasee0

Not reportedComparator

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

Jatropha curcas
Jatropha curcas · Taxon · picture from its Wikimedia Commons categoryAdityamadhav83 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“significant increase in shoot, root and total dry matter production was observed in J. curcas, C. equisetifolia and S. macrophylla when inoculated with single biofertilizers or both”

✓ located verbatim in the source · abstract, characters 1206–1387 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

After three months in the nursery, inoculation with single biofertilizers or both significantly increased shoot, root and total dry matter production in Casuarina equisetifolia.

Taxon
C. equisetifoliaCasuarina equisetifoliae0
Treatment
inoculated with single biofertilizers or bothe0
Outcome
shoot, root and total dry matter productione0
Direction
increasee0

Not reportedComparator

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

Casuarina equisetifolia
Casuarina equisetifolia · TaxonEthel Aardvark · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“significant increase in shoot, root and total dry matter production was observed in J. curcas, C. equisetifolia and S. macrophylla when inoculated with single biofertilizers or both”

✓ located verbatim in the source · abstract, characters 1206–1387 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

After three months in the nursery, inoculation with single biofertilizers or both significantly increased shoot, root and total dry matter production in Swietenia macrophylla.

Taxon
S. macrophyllaSwietenia macrophyllae0
Treatment
inoculated with single biofertilizers or bothe0
Outcome
shoot, root and total dry matter productione0
Direction
increasee0

Not reportedComparator

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

Swietenia macrophylla
Swietenia macrophylla · TaxonJ.M.Garg · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“significant increase in shoot, root and total dry matter production was observed in J. curcas, C. equisetifolia and S. macrophylla when inoculated with single biofertilizers or both”

✓ located verbatim in the source · abstract, characters 1206–1387 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined Mykovam and BioGroe inoculation significantly produced longer root length in J. curcas.

Taxon
J. curcasJatropha curcase0
Treatment
Combined Mykovam and BioGroe inoculatione0
Interactor
Mykovame0symbiont
Second interactor
BioGroee0symbiont
Outcome
root lengthe0
Direction
longere0

Not reportedComparator

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

Jatropha curcas
Jatropha curcas · Taxon · picture from its Wikimedia Commons categoryAdityamadhav83 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Combined Mykovam and BioGroe inoculation significantly prompted longer root length and greater leaf area of J. curcas that translated to significantly greater Phosphorus content and uptake in the shoots but not in the roots”

✓ located verbatim in the source · abstract, characters 1389–1612 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined Mykovam and BioGroe inoculation significantly produced greater leaf area in J. curcas.

Taxon
J. curcasJatropha curcase0
Treatment
Combined Mykovam and BioGroe inoculatione0
Interactor
Mykovame0symbiont
Second interactor
BioGroee0symbiont
Outcome
leaf areae0
Direction
greatere0

Not reportedComparator

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

Jatropha curcas
Jatropha curcas · Taxon · picture from its Wikimedia Commons categoryAdityamadhav83 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Combined Mykovam and BioGroe inoculation significantly prompted longer root length and greater leaf area of J. curcas that translated to significantly greater Phosphorus content and uptake in the shoots but not in the roots”

✓ located verbatim in the source · abstract, characters 1389–1612 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Combined Mykovam and BioGroe inoculation of J. curcas gave significantly greater phosphorus content and uptake in the shoots.

Taxon
J. curcasJatropha curcase0
Organ / stage
shootse0
Treatment
Combined Mykovam and BioGroe inoculatione0
Interactor
Mykovame0symbiont
Second interactor
BioGroee0symbiont
Outcome
Phosphorus content and uptakee0
Direction
greatere0

Not reportedComparator

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

Jatropha curcas
Jatropha curcas · Taxon · picture from its Wikimedia Commons categoryAdityamadhav83 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Combined Mykovam and BioGroe inoculation significantly prompted longer root length and greater leaf area of J. curcas that translated to significantly greater Phosphorus content and uptake in the shoots but not in the roots”

✓ located verbatim in the source · abstract, characters 1389–1612 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Combined Mykovam and BioGroe inoculation of J. curcas did not significantly raise phosphorus content and uptake in the roots.

Taxon
J. curcasJatropha curcase0
Organ / stage
rootse0
Treatment
Combined Mykovam and BioGroe inoculatione0
Interactor
Mykovame0symbiont
Second interactor
BioGroee0symbiont
Outcome
Phosphorus content and uptakee0
Direction
no_changeinferrede0

Not reportedComparator

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

Jatropha curcas
Jatropha curcas · Taxon · picture from its Wikimedia Commons categoryAdityamadhav83 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Combined Mykovam and BioGroe inoculation significantly prompted longer root length and greater leaf area of J. curcas that translated to significantly greater Phosphorus content and uptake in the shoots but not in the roots”

✓ located verbatim in the source · abstract, characters 1389–1612 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Seedlings of A. crassicarpa inoculated with BioGroe or Mykovam or both had greater shoot, root and total biomass that was not statistically significantly different from uninoculated seedlings.

Taxon
A. crassicarpaAcacia crassicarpae0
Treatment
inoculated with BioGroe or Mykovam or combinede0
Interactor
Mykovame0symbiont
Second interactor
BioGroee0symbiont
Outcome
shoot, root and total biomasse0
Direction
greatere0
Comparator
uninoculated seedlingse0

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

Acacia crassicarpa
Acacia crassicarpa · Taxoncoenobita · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“A. crassicarpa, A. mangium and A. neurocarpa seedlings when inoculated with BioGroe or Mykovam or combined had also greater shoot, root and total biomass but was not statistically significantly different than the uninoculated seedlings”

✓ located verbatim in the source · abstract, characters 1614–1849 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Seedlings of A. mangium inoculated with BioGroe or Mykovam or both had greater shoot, root and total biomass that was not statistically significantly different from uninoculated seedlings.

Taxon
A. mangiumAcacia mangiume0
Treatment
inoculated with BioGroe or Mykovam or combinede0
Interactor
Mykovame0symbiont
Second interactor
BioGroee0symbiont
Outcome
shoot, root and total biomasse0
Direction
greatere0
Comparator
uninoculated seedlingse0

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

Acacia mangium
Acacia mangium · TaxonRodrigo Padula · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“A. crassicarpa, A. mangium and A. neurocarpa seedlings when inoculated with BioGroe or Mykovam or combined had also greater shoot, root and total biomass but was not statistically significantly different than the uninoculated seedlings”

✓ located verbatim in the source · abstract, characters 1614–1849 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Seedlings of A. neurocarpa inoculated with BioGroe or Mykovam or both had greater shoot, root and total biomass that was not statistically significantly different from uninoculated seedlings.

Taxon
A. neurocarpaAcacia neurocarpae0
Treatment
inoculated with BioGroe or Mykovam or combinede0
Interactor
Mykovame0symbiont
Second interactor
BioGroee0symbiont
Outcome
shoot, root and total biomasse0
Direction
greatere0
Comparator
uninoculated seedlingse0

Verbatim

e0

“A. crassicarpa, A. mangium and A. neurocarpa seedlings when inoculated with BioGroe or Mykovam or combined had also greater shoot, root and total biomass but was not statistically significantly different than the uninoculated seedlings”

✓ located verbatim in the source · abstract, characters 1614–1849 · show in text ↑

inoculation · yield · Jatropha curcasPositive and negative results

3 papers: 2 positive, 1 negative or no effect

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

  1. no effect
  2. positive
See all 3 papers →

inoculation · growth · Acacia crassicarpa (northern wattle)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

3 in the opposite direction

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

inoculation · growth · Acacia mangiumPositive and negative results

10 papers: 9 positive, 1 negative or no effect

9 in the opposite direction

  1. positive
  2. positive
  3. positive

6 papers more in this group

See all 10 papers →

inoculation · growth · Jatropha curcasPositive and negative results

11 papers: 9 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

7 papers more in this group

See all 11 papers →

inoculation · nutrient: content · Jatropha curcasResults 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.