Paper · 2015 · Open Access Repository of ICRISAT (International Crops Research Institute for the Semi-Arid Tropics)

Acetylene reductase activity and molecular characterization of plant growth promoting rhizobacteria to know efficacy in integrated nutrient management system.

Manoj Kaushal; Rajesh Kumar Kaushal

8
claims
8
verbatim quotes
23
citations
3
research areas
✓
Open access

Abstract

Isolates from rhizosphere were screened and characterized for their plant growth promotion and biocontrol properties as per standard methods. Five isolates (MK2, MK4, MK5, MK7 & MK9) showed the maximum plant growth promoting attributes like P-solubilization, N-fixation etc. Acetylene reduction assay (ARA) method was used to study N2 fixing ability. The bacterial isolate MK5 fixed the maximum nitrogen, i.e., 437.26 ηmole C2H4 h-1 mg-1 protein (109 mg of N2 fixed/ha/d). The isolates MK5 and MK7 showed the maximum homology with Bacillus pumilus and B. subtilis, respectively by 16S rRNA analysis. The bacterial isolate MK5 in conjunction with 75% level of recommended dose of N and P fertilizers gave increase yield of cauliflower crop by 27.29% over recommended doses of NPK with a saving of 25% N and 25% P fertilizers.

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Claims 8

Observationobservedoriginal resultmeasured

Claim · model-written summary

Five rhizosphere isolates showed maximum plant growth promoting attributes.

Material
MK2, MK4, MK5, MK7 & MK9e0
Outcome
maximum plant growth promoting attributese0
Direction
maximume0

Not reportedTaxon

Verbatim

e0

“Five isolates (MK2, MK4, MK5, MK7 & MK9) showed the maximum plant growth promoting attributes like P-solubilization, N-fixation etc.”

✓ located verbatim in the source · abstract, characters 142–274 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

MK5 fixed the maximum nitrogen, 437.26 ηmole C2H4 h-1 mg-1 protein.

Material
MK5e0
Outcome
fixed the maximum nitrogene0
Direction
maximume0
Value
437.26 ηmole C2H4 h-1 mg-1 proteine0

Not reportedTaxon

Verbatim

e0

“The bacterial isolate MK5 fixed the maximum nitrogen, i.e., 437.26 ηmole C2H4 h-1 mg-1 protein (109 mg of N2 fixed/ha/d).”

✓ located verbatim in the source · abstract, characters 351–472 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

MK5 fixed an estimated 109 mg N2 per hectare per day.

Material
MK5e0
Outcome
N2 fixede0
Direction
maximume0
Value
109 mg of N2 fixed/ha/de0

Not reportedTaxon

Verbatim

e0

“The bacterial isolate MK5 fixed the maximum nitrogen, i.e., 437.26 ηmole C2H4 h-1 mg-1 protein (109 mg of N2 fixed/ha/d).”

✓ located verbatim in the source · abstract, characters 351–472 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

MK5 was most homologous to Bacillus pumilus in 16S analysis.

Material
MK5e0
Interactor
Bacillus pumilusBacillus pumiluse0symbiont
Outcome
maximum homologye0
Direction
maximume0

Not reportedTaxon

Verbatim

e0

“The isolates MK5 and MK7 showed the maximum homology with Bacillus pumilus and B. subtilis, respectively by 16S rRNA analysis.”

✓ located verbatim in the source · abstract, characters 473–599 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

MK7 was most homologous to B. subtilis in 16S analysis.

Material
MK7e0
Interactor
B. subtilisBacillus subtilise0symbiont
Outcome
maximum homologye0
Direction
maximume0

Not reportedTaxon

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

Bacillus subtilis
Bacillus subtilis · InteractorY tambe (original uploader) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The isolates MK5 and MK7 showed the maximum homology with Bacillus pumilus and B. subtilis, respectively by 16S rRNA analysis.”

✓ located verbatim in the source · abstract, characters 473–599 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

MK5 with 75% recommended nitrogen and phosphorus increased cauliflower yield 27.29% over recommended NPK.

Treatment
MK5 in conjunction with 75% level of recommended dose of N and P fertilizerse0
Interactor
MK5e0symbiont
Outcome
yield of cauliflower crope0
Direction
increasee0
Value
27.29%e0
Comparator
recommended doses of NPKe0

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

Brassica oleracea var. botrytis
Brassica oleracea var. botrytis · TaxonSusan Slater · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The bacterial isolate MK5 in conjunction with 75% level of recommended dose of N and P fertilizers gave increase yield of cauliflower crop by 27.29% over recommended doses of NPK with a saving of 25% N and 25% P fertilizers.”

✓ located verbatim in the source · abstract, characters 600–824 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The MK5 treatment saved 25% of nitrogen fertilizer.

Treatment
MK5 in conjunction with 75% level of recommended dose of N and P fertilizerse0
Interactor
MK5e0symbiont
Outcome
saving of 25% Ne0
Direction
savinge0
Value
25% Ne0
Comparator
recommended doses of NPKe0

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

Brassica oleracea var. botrytis
Brassica oleracea var. botrytis · TaxonSusan Slater · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The bacterial isolate MK5 in conjunction with 75% level of recommended dose of N and P fertilizers gave increase yield of cauliflower crop by 27.29% over recommended doses of NPK with a saving of 25% N and 25% P fertilizers.”

✓ located verbatim in the source · abstract, characters 600–824 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The MK5 treatment saved 25% of phosphorus fertilizer.

Treatment
MK5 in conjunction with 75% level of recommended dose of N and P fertilizerse0
Interactor
MK5e0symbiont
Outcome
25% P fertilizerse0
Direction
savinge0
Value
25% Pe0
Comparator
recommended doses of NPKe0

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

Brassica oleracea var. botrytis
Brassica oleracea var. botrytis · TaxonSusan Slater · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The bacterial isolate MK5 in conjunction with 75% level of recommended dose of N and P fertilizers gave increase yield of cauliflower crop by 27.29% over recommended doses of NPK with a saving of 25% N and 25% P fertilizers.”

✓ located verbatim in the source · abstract, characters 600–824 · show in text ↑

nitrogen · yield · Brassica oleracea (wild cabbage)Results differ

164 papers: 144 positive, 20 negative or no effect

143 papers in the same direction as this paper · 17 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

160 papers more in this group

See all 164 papers →

phosphorus · yield · Brassica oleracea (wild cabbage)Positive and negative results

56 papers: 54 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive

52 papers more in this group

See all 56 papers →

fertilization · yield · Brassica oleracea (wild cabbage)Positive and negative results

496 papers: 445 positive, 51 negative or no effect

444 papers in the same direction as this paper · 43 in the opposite direction · 8 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

492 papers more in this group

See all 496 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.