Abstract
Two field experiments were carried out during the cropping seasons of 2016 and 2017 at the Teaching and Research Farm of the University of Agriculture, Makurdi, Benue State, Nigeria. The experiments sought to determine the effect of sweet potato vine orientation on growth and yield of sweet potato/maize intercropping system with a view to improve the productivity of maize/sweet potato intercropping in Makurdi. The experiment was a 2 x 2 x 3 split-split plot laid out in randomized complete block design with three replications. The main plot treatments were two cropping systems [sole cropping (sweet potato, maize), intercropping (sweet potato + maize)].The sub plot treatments were made up of two maize varieties (pop.66SR/ACR.91 SUWAH 1-SR and M2: pool18R/AK94DMRESR-Y). The sub-sub plot treatments comprised of three (3) sweet potato vine orientations (incline, loop and horizontal). The result obtained from the experiment showed sole cropping gave higher cob length, number of seeds per cob, cob weight, grain yield and 100-seed weight of maize than intercropping in both years. In all years, pool18R/AK94DMRESR-Y produced higher yield and yield parameters of maize than pop.66SR/ACR.91 SUWAH 1-SR irrespective of the cropping system. In 2016 and 2017, horizontal vine orientation gave higher vine length, root diameter, root length, number of saleable roots per hectare and weight of saleable roots than all the other vine orientations. Intercropping with pop.66SR/ACR.91 SUWAH 1-SR gave higher growth and yield parameters than intercropping with pool18R/AK94DMRESR-Y. All intercrop combinations had LER figures above 1.0 and LEC values above 0.25 in both years. CR values of sweet potato were consistently higher than those of maize in all intercrop combinations in 2016 and 2017
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 7
Claim · model-written summary
Sole maize cropping gave higher cob length, seed number, cob weight, grain yield and seed weight than intercropping in both years.
- Treatment
- sole croppinge0
- Outcome
- cob length, number of seeds per cob, cob weight, grain yield and 100-seed weighte0
- Direction
- highere0
- Qualifier
- both yearse0
- Comparator
- intercroppinge0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sole cropping gave higher cob length, number of seeds per cob, cob weight, grain yield and 100-seed weight of maize than intercropping in both years”
Claim · model-written summary
The pool18R/AK94DMRESR-Y maize variety had higher yield and yield parameters than pop.66SR/ACR.91 SUWAH 1-SR in all years.
- Material
- pool18R/AK94DMRESR-Ye0
- Outcome
- yield and yield parameterse0
- Direction
- highere0
- Qualifier
- irrespective of the cropping systeme0
- Comparator
- pop.66SR/ACR.91 SUWAH 1-SRe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all years, pool18R/AK94DMRESR-Y produced higher yield and yield parameters of maize than pop.66SR/ACR.91 SUWAH 1-SR irrespective of the cropping system.”
Claim · model-written summary
Horizontal sweet potato vine orientation produced higher vine length, root traits and saleable root output than other orientations in both years.
- Taxon
- Sweet Potato
_Flower.jpg?width=60)
Ipomoea batatast0 - Treatment
- horizontal vine orientatione0
- Outcome
- vine length, root diameter, root length, number of saleable roots per hectare and weight of saleable rootse0
- Direction
- highere0
- Qualifier
- 2016 and 2017e0
- Comparator
- all the other vine orientationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“In 2016 and 2017, horizontal vine orientation gave higher vine length, root diameter, root length, number of saleable roots per hectare and weight of saleable roots than all the other vine orientations.”
t0“Sweet Potato Vine Planting Orientation”
Claim · model-written summary
Intercropping with pop.66SR/ACR.91 SUWAH 1-SR gave higher growth and yield parameters than intercropping with pool18R/AK94DMRESR-Y.
- Taxon
- sweet potatoIpomoea batatast0
- Treatment
- Intercropping with pop.66SR/ACR.91 SUWAH 1-SRe0
- Outcome
- growth and yield parameterse0
- Direction
- highere0
- Comparator
- intercropping with pool18R/AK94DMRESR-Ye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intercropping with pop.66SR/ACR.91 SUWAH 1-SR gave higher growth and yield parameters than intercropping with pool18R/AK94DMRESR-Y.”
t0“sweet potato/maize”
Claim · model-written summary
All intercrop combinations exceeded a land equivalent ratio of 1.0 in both years.
- Taxon
- sweet potatoIpomoea batatast0
- Outcome
- LER figurese0
- Direction
- abovee0
- Value
- 1.0e0
- Qualifier
- both yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All intercrop combinations had LER figures above 1.0 and LEC values above 0.25 in both years.”
t0“sweet potato/maize”
Claim · model-written summary
All intercrop combinations exceeded a land equivalent coefficient of 0.25 in both years.
- Taxon
- sweet potatoIpomoea batatast0
- Outcome
- LEC valuese0
- Direction
- abovee0
- Value
- 0.25e0
- Qualifier
- both yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All intercrop combinations had LER figures above 1.0 and LEC values above 0.25 in both years.”
t0“sweet potato/maize”
Claim · model-written summary
Sweet potato competitive ratio consistently exceeded maize across intercrop combinations in both years.
- Taxon
- sweet potatoIpomoea batatase0
- Outcome
- CR valuese0
- Direction
- highere0
- Qualifier
- all intercrop combinations in 2016 and 2017e0
- Comparator
- maizee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CR values of sweet potato were consistently higher than those of maize in all intercrop combinations in 2016 and 2017”
The same questions in other papers
intercropping · yield · Ipomoea batatas (sweet potato)Results differ
12 papers in the same direction as this paper · 10 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
20 papers more in this group
See all 24 papers →intercropping · yield · Zea mays (maize)Positive and negative results
612 papers in the same direction as this paper · 181 in the opposite direction · 40 reporting no difference from an alternative
- positive
- positive
- no effect
830 papers more in this group
See all 834 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.