Abstract
Improved pigeonpea [Cajanus cajan (L.) Millsp.] genotypes of short (≤ 150 days, usually erect, medium (151180 days) and long (≥ 181 days) duration with semi-spreading or spreading habits were intercropped with traditional red sorghum [Sorghum bicolor (L.) Moench]. The aim was to identify the suitable genotype (s) of pigeonpea for intercropping with the traditional red sorghum and to determine the productivity of pigeonpea/sorghum intercropping systems in Southern Guinea Savanna of Nigeria (SGS). The treatments consisted of three cropping systems {sole pigeonpea, sole sorghum and intercropping (pigeonpea and sorghum) }as main plot, combined with 15 pigeonpea genotypes [ICPL 85010, ICPL 84031, ICPL87, ICPL 161 (short duration), ICPL 8863, ICPL 85063, ICPL 87119, ICPL 7120, ICEAP 00068 (medium duration), ICPL 8094, ICPL 7035, ICPL 87051, ICPL 9145, ICEAP 00040 (long duration) and ‘Igbongbo’ (traditional cultivar-control)] as sub-plot, laid out as a split-plot in randomized complete block design with three replications. The experiments were established at the National Root Crops Research Institute Sub-station, Otobi, Benue State, Nigeria, in 2002 and 2003. Intercropped sorghum were taller (≥ 180 cm) than both intercropped and sole cropped pigeonpea (≤ 150 cm) at 12 weeks after planting (WAP), except ICPL 8094 and ICEAP 0068, which maintained similar heights with sorghum component. Intercropped pigeonpea produced significantly lower mean number of branches. Plant-1 (21.32) and mean dry pod weight (2.82 t.ha -1 ) and mean dry grain yield (1.59 t.ha -1 ), as compared to sole cropped pigeonpea with 25.09 (branches. plant -1 ), 4.58 t.ha -1 (dry pod weight) and 2.72 t.ha -1 (dry grain yield) in 2002 and 2003 combined. The high land equivalent ratio (LER) values (1.47-2.07) exhibited by the improved pigeonpea genotypes under intercropping with the traditional red sorghum clearly proved the suitability of these pigeonpea genotypes for intercropping with the traditional red sorghum.
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Claims 6
Claim · model-written summary
Intercropped sorghum was taller than pigeonpea at 12 weeks, except two pigeonpea genotypes with similar heights.
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intercropped sorghum were taller (≥ 180 cm) than both intercropped and sole cropped pigeonpea (≤ 150 cm) at 12 weeks after planting (WAP), except ICPL 8094 and ICEAP 0068, which maintained similar heights with sorghum component.”
Claim · model-written summary
Intercropped pigeonpea had fewer branches per plant than sole pigeonpea.
- Taxon
- pigeonpea
Cajanus cajane0 - Treatment
- Intercroppede0
- Outcome
- mean number of branches. Plant-1e0
- Direction
- lowere0
- Value
- 21.32e0
- Qualifier
- 25.09 (branches. plant -1 )e0
- Comparator
- sole cropped pigeonpeae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intercropped pigeonpea produced significantly lower mean number of branches. Plant-1 (21.32) and mean dry pod weight (2.82 t.ha -1 ) and mean dry grain yield (1.59 t.ha -1 ), as compared to sole cropped pigeonpea with 25.09 (branches. plant -1 ), 4.58 t.ha -1 (dry pod weight) and 2.72 t.ha -1 (dry grain yield) in 2002 and 2003 combined.”
Claim · model-written summary
Intercropped pigeonpea had lower dry pod weight than sole pigeonpea.
- Taxon
- pigeonpeaCajanus cajane0
- Treatment
- Intercroppede0
- Outcome
- mean dry pod weighte0
- Direction
- lowere0
- Value
- 2.82 t.ha -1e0
- Qualifier
- 4.58 t.ha -1e0
- Comparator
- sole cropped pigeonpeae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intercropped pigeonpea produced significantly lower mean number of branches. Plant-1 (21.32) and mean dry pod weight (2.82 t.ha -1 ) and mean dry grain yield (1.59 t.ha -1 ), as compared to sole cropped pigeonpea with 25.09 (branches. plant -1 ), 4.58 t.ha -1 (dry pod weight) and 2.72 t.ha -1 (dry grain yield) in 2002 and 2003 combined.”
Claim · model-written summary
Intercropped pigeonpea had lower dry grain yield than sole pigeonpea.
- Taxon
- pigeonpeaCajanus cajane0
- Treatment
- Intercroppede0
- Outcome
- mean dry grain yielde0
- Direction
- lowere0
- Value
- 1.59 t.ha -1e0
- Qualifier
- 2.72 t.ha -1e0
- Comparator
- sole cropped pigeonpeae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intercropped pigeonpea produced significantly lower mean number of branches. Plant-1 (21.32) and mean dry pod weight (2.82 t.ha -1 ) and mean dry grain yield (1.59 t.ha -1 ), as compared to sole cropped pigeonpea with 25.09 (branches. plant -1 ), 4.58 t.ha -1 (dry pod weight) and 2.72 t.ha -1 (dry grain yield) in 2002 and 2003 combined.”
Claim · model-written summary
Improved pigeonpea genotypes intercropped with red sorghum had land equivalent ratios of 1.47–2.07.
- Taxon
- pigeonpeaCajanus cajane0
- Material
- improved pigeonpea genotypese0
- Treatment
- intercropping with the traditional red sorghume0
- Outcome
- land equivalent ratio (LER)e0
- Value
- 1.47-2.07e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The high land equivalent ratio (LER) values (1.47-2.07) exhibited by the improved pigeonpea genotypes under intercropping with the traditional red sorghum clearly proved the suitability of these pigeonpea genotypes for intercropping with the traditional red sorghum.”
Claim · model-written summary
The authors judged improved pigeonpea genotypes suitable for intercropping with traditional red sorghum.
- Taxon
- pigeonpeaCajanus cajane0
- Outcome
- suitability of these pigeonpea genotypes for intercropping with the traditional red sorghume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the suitability of these pigeonpea genotypes for intercropping with the traditional red sorghum”
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
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See all 117 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.