Paper · 2021 · American Journal of Plant Sciences

Evaluation of the Suitability of Some Cowpea Genotype for Maize-Cowpea Intercrop in Northern Ghana

Abeku Tetteh; Francis Kusi; Raphael Adu-Gyamfi; et al.

8
claims
14
verbatim quotes
1
citations
1
research areas
✓
Open access · cc-by

Abstract

Council for Scientific and Industrial Research-Savanna Agricultural Research Institute (CSIR-SARI) in collaboration with University of California, Riverside phenotyped 300 Recombinant Inbred Lines (RILs) of Multi-parent Advanced Generation Inter-Cross (MAGIC) cowpea population from eight elite cowpea cultivars in Northern Ghana. Among the traits targeted in the phenotyping is extra early maturity suitable for Sudan Savanna agro ecological zone of Ghana. Ten selected extra early genotypes from the MAGIC population were intercropped with maize to identify genotype(s) that can maintain agronomic performances and grain yield. A field experiment was carried out at the Manga Station of SARI, Ghana during the 2018 and 2019 growing season to evaluate the ten extra-early cowpea genotypes in maize/cowpea intercrop. The experimental design used was split plot with three replications. The cropping patterns (row, strip and sole cropping) were assigned to the main plot. Ten cowpea genotypes (MAGIC 008, MAGIC 043, MAGIC 048, MAGIC 055, MAGIC 076, MAGIC 118, MAGIC 154, MAGIC 176, CB27, and SARC 1-57-2) were assigned to sub-plots. The results indicated that the number of seed per pod of the cowpea was not affected by cowpea genotype and intercrop pattern interaction; however, the interaction influenced grain yield, pod per plant, plant height, 50% flowering and 100 seed weight of cowpea. MAGIC genotypes, M008, M048, M055, M154, recorded higher grain yield under both strip intercropping and sole cropping. SARC1-57-2 also recorded the highest grain yield under row intercropping. M048, M055, M076, M176 and SARI’s collection SARC1-57-2 were the top five genotypes in fodder production. Intercropping advantage was compared with sole cropping. Land equivalent ratio greater than 1 was observed for all the genotypes with MAGIC 048 recording the highest LER at strip intercrop. Benefit Cost Ratio also showed that there is advantage of intercropping than sole cropping.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 8

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Genotype and intercrop pattern interaction did not affect seeds per pod.

Material
cowpea genotypee0
Outcome
number of seed per pode0
Direction
not affectede0

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 number of seed per pod of the cowpea was not affected by cowpea genotype and intercrop pattern interaction”

✓ located verbatim in the source · abstract, characters 1159–1269 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The interaction influenced yield, pods per plant, height, flowering and seed weight.

Material
cowpeae0
Outcome
grain yield, pod per plant, plant height, 50% flowering and 100 seed weighte0

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

“the interaction influenced grain yield, pod per plant, plant height, 50% flowering and 100 seed weight of cowpea”

✓ located verbatim in the source · abstract, characters 1280–1392 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Four MAGIC genotypes had higher yield under strip and sole cropping.

Material
M008, M048, M055, M154e0
Outcome
grain yielde0
Direction
highere0

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

“MAGIC genotypes, M008, M048, M055, M154, recorded higher grain yield under both strip intercropping and sole cropping.”

✓ located verbatim in the source · abstract, characters 1394–1512 · show in text ↑
t0

“Some Cowpea Genotype”

✓ located verbatim in the source · title, characters 33–53 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

SARC1-57-2 had highest yield in row intercropping.

Material
SARC1-57-2e0
Outcome
grain yielde0
Direction
higheste0

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

“SARC1-57-2 also recorded the highest grain yield under row intercropping.”

✓ located verbatim in the source · abstract, characters 1513–1586 · show in text ↑
t0

“Some Cowpea Genotype”

✓ located verbatim in the source · title, characters 33–53 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Five genotypes led fodder production.

Outcome
fodder productione0
Direction
top fivee0

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

“M048, M055, M076, M176 and SARI’s collection SARC1-57-2 were the top five genotypes in fodder production.”

✓ located verbatim in the source · abstract, characters 1587–1692 · show in text ↑
t0

“Some Cowpea Genotype”

✓ located verbatim in the source · title, characters 33–53 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

All genotypes had land equivalent ratio above one.

Outcome
Land equivalent ratioe0
Direction
greater thane0
Value
greater than 1e0

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

“Land equivalent ratio greater than 1 was observed for all the genotypes”

✓ located verbatim in the source · abstract, characters 1750–1821 · show in text ↑
t0

“Some Cowpea Genotype”

✓ located verbatim in the source · title, characters 33–53 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

MAGIC 048 had the highest LER in strip intercrop.

Material
MAGIC 048e0
Outcome
LERe0
Direction
higheste0

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

“MAGIC 048 recording the highest LER at strip intercrop”

✓ located verbatim in the source · abstract, characters 1827–1881 · show in text ↑
t0

“Some Cowpea Genotype”

✓ located verbatim in the source · title, characters 33–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Benefit Cost Ratio favored intercropping over sole cropping.

Treatment
intercroppinge0
Outcome
Benefit Cost Ratioe0
Direction
advantagee0
Comparator
sole croppinge0

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

“Benefit Cost Ratio also showed that there is advantage of intercropping than sole cropping.”

✓ located verbatim in the source · abstract, characters 1883–1974 · show in text ↑
t0

“Some Cowpea Genotype”

✓ located verbatim in the source · title, characters 33–53 · show in text ↑

intercropping · yield · Vigna unguiculata (cowpea)Results differ

103 papers: 63 positive, 40 negative or no effect

62 papers in the same direction as this paper · 33 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

99 papers more in this group

See all 103 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.