Abstract
Green ears of maize are much appreciated all over Brazil and reach higher prices than dry grain. This alsooccurs with green cowpea grain, which is much appreciated in the north and northeast of the country. The aim of this studywas to identify maize and cowpea cultivars that can be grown as monocrops or intercrops to produce green grain in the stateof Pará (PA). An experiment was carried out in a randomized block design with six replications in Marabá, PA. Monocrops oftraditional varieties of the cowpea (‘Corujinha’ and ‘Sempre Verde’) and the maize cultivars (‘AG 1051’ and ‘AL Bandeirante’),and four alternating, intercropped rows of a combination of the varieties and cultivars were evaluated. The ‘AG 1051’ cultivarwas more productive than the ‘AL Bandeirante’ cultivar, as both a monocrop and an intercrop. The cowpea cultivars showeda similar performance under both systems of cultivation. There was no interaction between the maize cultivars and cowpeacultivars. The monocrops were superior to the intercrops for green-ear, green-pod and green-grain yield. Considering the landequivalent ratio, if the aim is to produce green pods, intercropping is only beneficial in the AG 1051 + Corujnha combination.If the aim is for green-grain yield in the cowpea, intercropping is more advantageous when the ‘AG 1051’ cultivar is combinedwith any cowpea cultivar. The intercrop including the ‘AL Bandeirante’ cultivar is only beneficial with the ‘Corujinha’ cultivar,and if the aim is to market unhusked, green ears of maize.
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Claims 7
Claim · model-written summary
The maize cultivar AG 1051 was more productive than AL Bandeirante, both as a monocrop and as an intercrop.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping maize and cowpea cultivars”
e0“The ‘AG 1051’ cultivarwas more productive than the ‘AL Bandeirante’ cultivar, as both a monocrop and an intercrop”
Claim · model-written summary
The cowpea cultivars showed a similar performance under monocrop and intercrop systems.
- Taxon
- cowpea
Vigna unguiculatae1 - Treatment
- systems of cultivatione1
- Outcome
- performancee1
- Direction
- similare1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping maize and cowpea cultivars”
e1“The cowpea cultivars showed a similar performance under both systems of cultivation”
Claim · model-written summary
There was no interaction between the maize cultivars and the cowpea cultivars.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping maize and cowpea cultivars”
e2“There was no interaction between the maize cultivars and cowpea cultivars”
Claim · model-written summary
The monocrops were superior to the intercrops for green-ear, green-pod and green-grain yield.
- Taxon
- maize and cowpeaVigna unguiculata
Zea mayst0 - Treatment
- monocropse3
- Outcome
- green-ear, green-pod and green-grain yielde3
- Direction
- superiore3
- Comparator
- intercropse3
- Setting
- Marabá, PAe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping maize and cowpea cultivars”
e3“The monocrops were superior to the intercrops for green-ear, green-pod and green-grain yield”
e4“An experiment was carried out in a randomized block design with six replications in Marabá, PA”
Claim · model-written summary
For green-pod production, intercropping was beneficial in land equivalent ratio only with the AG 1051 and Corujnha combination.
- Taxon
- maize and cowpeaVigna unguiculataZea mayst0
- Material
- AG 1051 + Corujnhae5
- Treatment
- intercroppinge5
- Outcome
- landequivalent ratioe5
- Direction
- beneficiale5
- Qualifier
- if the aim is to produce green podse5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping maize and cowpea cultivars”
e5“Considering the landequivalent ratio, if the aim is to produce green pods, intercropping is only beneficial in the AG 1051 + Corujnha combination”
Claim · model-written summary
For green-grain yield in cowpea, intercropping was more advantageous when AG 1051 was combined with any cowpea cultivar.
- Taxon
- cowpeaVigna unguiculatae6
- Material
- AG 1051e6
- Treatment
- intercroppinge6
- Outcome
- green-grain yielde6
- Direction
- more advantageouse6
- Qualifier
- when the ‘AG 1051’ cultivar is combined with any cowpea cultivare6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping maize and cowpea cultivars”
e6“If the aim is for green-grain yield in the cowpea, intercropping is more advantageous when the ‘AG 1051’ cultivar is combined with any cowpea cultivar”
Claim · model-written summary
For marketing unhusked green maize ears, the intercrop with AL Bandeirante was beneficial only with the Corujinha cultivar.
- Material
- AL Bandeirantee7
- Treatment
- intercrope7
- Outcome
- market unhusked, green ears of maizee7
- Direction
- beneficiale7
- Qualifier
- only beneficial with the ‘Corujinha’ cultivare7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping maize and cowpea cultivars”
e7“The intercrop including the ‘AL Bandeirante’ cultivar is only beneficial with the ‘Corujinha’ cultivar,and if the aim is to market unhusked, green ears of maize”
The same questions in other papers
intercropping · yield · Vigna unguiculata (cowpea)Results differ
62 papers in the same direction as this paper · 33 in the opposite direction · 7 reporting no difference from an alternative
- negative
- negative
- no effect
99 papers more in this group
See all 103 papers →intercropping · organism · Zea mays (maize)Positive and negative results
32 papers in the same direction as this paper · 17 in the opposite direction
- negative
- negative
- no effect
46 papers more in this group
See all 50 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.