Paper · 1997 · 土壤圈(英文版)

Effect of Bradyrhizobium sp. Inoculation on Biomass and Nodulation of Cowpea

Yinping Zhao; Wei Li

6
claims
11
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Vigna unguiculata(L.) Walp (cowpea) is a tropical legume of very high nutritive and economic values. A laboratory experiment was conducted to evaluate the BNF (biological nitrogen fixation) efficiency of 4 strains of Bradyrhizobium sp. (VUXYI, VUIEI, VUMDSI and VUIDI). From the results obtained these strains were classified into efficiency groups, with VUIDI being the most efficient and VUXYI the least efficient.The effect of inoculation was tested on 2 cowpea varieties in a field experiment. Remarkable increases in nodulation biomass and crop yield were observed. An increase from 58% to 81% in dry seed was obtained for the two varieties. A significance test revealed a significantly positive correlation between nodulation and biomass.

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 6

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

VUIDI was the most efficient Bradyrhizobium strain.

Interactor
VUIDIe0symbiont
Outcome
most efficiente0

Not reportedMaterialDirection

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“VUIDI being the most efficient and VUXYI the least efficient”

✓ located verbatim in the source · abstract, characters 355–415 · show in text ↑
t0

“Cowpea”

✓ located verbatim in the source · title, characters 70–76 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

VUXYI was the least efficient Bradyrhizobium strain.

Interactor
VUXYIe0symbiont
Outcome
least efficiente0

Not reportedDirection

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“VUIDI being the most efficient and VUXYI the least efficient”

✓ located verbatim in the source · abstract, characters 355–415 · show in text ↑
t0

“Cowpea”

✓ located verbatim in the source · title, characters 70–76 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculation increased cowpea nodulation and biomass.

Treatment
inoculatione0
Outcome
nodulation biomasse0
Direction
increasese0
Setting
fielde0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The effect of inoculation was tested on 2 cowpea varieties in a field experiment. Remarkable increases in nodulation biomass and crop yield were observed.”

✓ located verbatim in the source · abstract, characters 416–570 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculation increased cowpea crop yield.

Treatment
inoculationt0
Outcome
crop yielde0
Direction
increasese0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Remarkable increases in nodulation biomass and crop yield were observed.”

✓ located verbatim in the source · abstract, characters 498–570 · show in text ↑
t0

“Effect of Bradyrhizobium sp. Inoculation on Biomass and Nodulation of Cowpea”

✓ located verbatim in the source · title, characters 0–76 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dry seed increased by 58% to 81% across two cowpea varieties.

Treatment
Inoculationt0
Outcome
dry seede0
Direction
increasee0
Value
58% to 81%e0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“An increase from 58% to 81% in dry seed was obtained for the two varieties.”

✓ located verbatim in the source · abstract, characters 571–646 · show in text ↑
t0

“Inoculation on Biomass and Nodulation of Cowpea”

✓ located verbatim in the source · title, characters 29–76 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Cowpea nodulation and biomass were significantly positively correlated.

Organ / stage
nodulatione0
Outcome
biomasse0
Direction
positivee0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“A significance test revealed a significantly positive correlation between nodulation and biomass.”

✓ located verbatim in the source · abstract, characters 647–744 · show in text ↑
t0

“Cowpea”

✓ located verbatim in the source · title, characters 70–76 · show in text ↑

inoculation · symbiosis · Vigna unguiculata (cowpea)Results differ

69 papers: 57 positive, 12 negative or no effect

56 papers in the same direction as this paper · 11 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

65 papers more in this group

See all 69 papers →

inoculation · yield · Vigna unguiculata (cowpea)Results differ

116 papers: 99 positive, 17 negative or no effect

98 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

112 papers more in this group

See all 116 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.