Abstract
A study was conducted in South Africa during the 1998-99 season to evaluate the performance of pigeon pea cultivars, with varying maturity periods, with maize in 2 intercropping systems (alley planting and same row planting systems). Short-duration (SD) maize composite EWF-2 was intercropped with SD pigeonpea cultivars ICPL 87091 and ICPL 87105 in one trial, and with medium-duration (MD) and long-duration (LD) cultivars ICP 6927 and ICEAP 00040, respectively, in a second trial. Yields of both crops in intercropping systems were generally lower than in monocropping systems. The yield reduction in intercropping systems for LD and MD pigeon pea cultivars was in the range 7.4-31.0%, while that of maize ranged from 8.7 to 38.6%. In the SD trial, yield reduction was in the range 36.8-66.3% in pigeonpea and 12.9-41.9% in maize. Significant yield reduction was observed under alley intercropping for LD and MD cultivars. Average land equivalent ratio was the same (1.24) in both systems in the SD trial, while LER in the LD-MD trial was 1.37 under alley intercropping and 1.77 under same row intercropping.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher.
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
Claim · model-written summary
pigeonpea yield declined under intercropping relative to monocropping in the LD-MD trial.
- Taxon
- pigeonpea
Cajanus cajant0e0 - Outcome
- yield reductione0
- Direction
- reductione0
- Value
- 7.4-31.0%e0
- Comparator
- monocropping systemse1
- Setting
- South Africat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Maize and Pigeonpea Intercropping Systems in Mpumalanga, South Africa”
e0“The yield reduction in intercropping systems for LD and MD pigeon pea cultivars was in the range 7.4-31.0%, while that of maize ranged from 8.7 to 38.6%.”
e1“Yields of both crops in intercropping systems were generally lower than in monocropping systems.”
Claim · model-written summary
maize yield declined under intercropping relative to monocropping in the LD-MD trial.
- Outcome
- yield reductione0
- Direction
- reductione0
- Value
- 8.7 to 38.6%e0
- Comparator
- monocropping systemse1
- Setting
- South Africat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Maize and Pigeonpea Intercropping Systems in Mpumalanga, South Africa”
e0“The yield reduction in intercropping systems for LD and MD pigeon pea cultivars was in the range 7.4-31.0%, while that of maize ranged from 8.7 to 38.6%.”
e1“Yields of both crops in intercropping systems were generally lower than in monocropping systems.”
Claim · model-written summary
pigeonpea yield declined under intercropping relative to monocropping in the SD trial.
- Taxon
- pigeonpea
Cajanus cajant0e0 - Outcome
- yield reductione0
- Direction
- reductione0
- Value
- 36.8-66.3%e0
- Comparator
- monocropping systemse1
- Setting
- South Africat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Maize and Pigeonpea Intercropping Systems in Mpumalanga, South Africa”
e0“In the SD trial, yield reduction was in the range 36.8-66.3% in pigeonpea and 12.9-41.9% in maize.”
e1“Yields of both crops in intercropping systems were generally lower than in monocropping systems.”
Claim · model-written summary
maize yield declined under intercropping relative to monocropping in the SD trial.
- Outcome
- yield reductione0
- Direction
- reductione0
- Value
- 12.9-41.9%e0
- Comparator
- monocropping systemse1
- Setting
- South Africat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Maize and Pigeonpea Intercropping Systems in Mpumalanga, South Africa”
e0“In the SD trial, yield reduction was in the range 36.8-66.3% in pigeonpea and 12.9-41.9% in maize.”
e1“Yields of both crops in intercropping systems were generally lower than in monocropping systems.”
Claim · model-written summary
Alley intercropping significantly reduced yield of long and medium duration pigeonpea cultivars.
- Taxon
- Pigeonpea
Cajanus cajant0 - Material
- LD and MD cultivarse0
- Treatment
- alley intercroppinge0
- Outcome
- yielde0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Pigeonpea”
e0“Significant yield reduction was observed under alley intercropping for LD and MD cultivars.”
Claim · model-written summary
Average land equivalent ratio was 1.24 in both systems in the short duration trial.
- Taxon
- Maize and Pigeonpea
Cajanus cajan
Zea mayst0 - Outcome
- land equivalent ratioe0
- Direction
- the samee0
- Value
- 1.24e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.


Verbatim
t0“Maize and Pigeonpea”
e0“Average land equivalent ratio was the same (1.24) in both systems in the SD trial”
Claim · model-written summary
Land equivalent ratio was 1.37 under alley intercropping in the long and medium duration trial.
- Taxon
- Maize and Pigeonpea
Cajanus cajan
Zea mayst0 - Treatment
- alley intercroppinge0
- Outcome
- LERe0
- Value
- 1.37e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.


Verbatim
t0“Maize and Pigeonpea”
e0“LER in the LD-MD trial was 1.37 under alley intercropping and 1.77 under same row intercropping”
Claim · model-written summary
Land equivalent ratio was 1.77 under same row intercropping in the long and medium duration trial.
- Taxon
- Maize and Pigeonpea
Cajanus cajan
Zea mayst0 - Treatment
- same row intercroppinge0
- Outcome
- LERe0
- Value
- 1.77e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.


Verbatim
t0“Maize and Pigeonpea”
e0“LER in the LD-MD trial was 1.37 under alley intercropping and 1.77 under same row intercropping”
The same questions in other papers
intercropping · yield · Cajanus cajan (pigeon pea)Results differ
22 papers in the same direction as this paper · 94 in the opposite direction
- positive
- positive
- positive
113 papers more in this group
See all 117 papers →intercropping · yield · Zea mays (maize)Positive and negative results
220 papers in the same direction as this paper · 613 in the opposite direction
- positive
- positive
- positive
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.