Yield response of Bambara groundnut to plant population and seedbed type

Mkandawire, F L; Sibuga, K. P.

doi:10.4314/acsj.v10i1.27556

Cited by 13 publications

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“…2b). The observation of possible adaptation of genotypes to specific dates could be explained by the effects of temperature and photoperiod differentials during their growth and development, especially podding as reported in previous findings (Nikishitani et al, 1980;Linnemann, 1991Linnemann, , 1993Linnemann, , 1994Linnemann and Azam-Ali, 1993;Mkandawire and Sibuga, 2002). This implies that there is a possibility of selecting for specific adaptation to different planting times; but eight of the 20 varieties did not show any special relationship with planting dates, and supported the observation of general adaptation shown by overall pod yield.…”

Section: Resultsmentioning

confidence: 80%

“…Developing cultivars for off-season planting entails selection under off-season conditions, because bambara groundnut's phenology is dependent on temperature and photoperiod (Nikishitani et al, 1988;Linnemann, 1991;Linnemann, 1993;Linnemann and Azam-Ali, 1993;Mkandawire and Sibuga, 2002). Bambara groundnut genotypes have been shown to exhibit variable responses to different planting dates (Linnemann, 1994: Karikari et al, 1995.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Bambara groundnut varieties for off-season production in Zimbabwe

Makanda¹,

Tongoona²,

Madamba³

et al. 2010

African Crop Science Journal

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Early planting of bambara groundnuts (Vigna subterranea L. Verdc) in the southern Africa enables farmers to fetch premium prices before the markets are flooded with produce from the main summer growing period. However, adaptation of the crop outside the main growing season has not been studied in Zimbabwe. Therefore, this study evaluated 20 varieties at four planting dates covering contrasting temperatures and daylength, at Harare Research Station, during 2000/2001. Planting date was the main plot factor replicated three times and cultivar the subplot. Standard agronomic practices were followed and adequate moisture supplied through supplementary irrigation. Both the planting dates and variety main effects were significant (P<0.05) for yield and most of the secondary traits. Planting date x genotype interaction (G x E) effects were not significant (P<0.05) for yield, suggesting that cultivars were relatively yield stable. However, G x E effects were significant (P<0.05) for days to 50% emergence and pod count plant -1 . Differences among varieties were attributable to genotypic effects and different photothermal conditions. August and September planting dates resulted in high dry pod yield. Varieties BS599, BS537, V2-17, BS520, and Variety-10, had high relative yield, and were the most promising for off-season planting.Key Words: Genotype x environment, planting date, Vigna subterranea RÉSUMÉ La sémis précoce des arachides bambara (Vigna subterranea l. Verdc) permet aux agriculteurs de se procurer de bénéfices importants avant que les marchés ne soient inondés par la production réalisée en période de croissance normale. Toutefois, l'adaptation de la culture en dehors de la saison de croissance principale n'avaiit pas été étudiée au Zimbabwe. Par conséquent, une étude avait été menée afin d'évaluer 20 variétés à quatre différentes dates de sémis couvrant des températures variées et la longueur de la journée, à la station de recherche de Harare, au cours de 2000/2001. La date de plantation avait été le facteur principal répliquées trois fois et le cultivar le facteur subordonné. Les pratiques agronomiques standard avaient été observées et une humidité adéquate fournie par le biais d'une irrigation supplémentaire. Les dates de plantation aussi bien que et les variétes comme effets principaux avaient été significatives (P<0.05) pour le rendement et la plupart des traits secondaires. Les effets de la date de sémis x interaction génotypique (G x E) n'étaient pas significatifs (P<0,05) pour le rendement, ce qui donne à penser que les cultivars étaient de rendement relativement stable. Toutefois, les effets G x E étaient significatifs (P<0,05) pour les jours à 50 % d'émergence et le comptage de gousse par plante. Les différences entre les variétés étaient attribuables aux effets génotypiques et aux différentes conditions photothermales. Les dates de plantation d'Août et Septembre, ont entraîné un rendement élevé en gousse sec. Les variétés BS599, BS537, V2-17, BS520, et variety-10, avaient un rendement relativem...

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Section: Resultsmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Evaluation of Bambara groundnut varieties for off-season production in Zimbabwe

Makanda¹,

Tongoona²,

Madamba³

et al. 2010

African Crop Science Journal

View full text Add to dashboard Cite

show abstract

“…In Nigeria, these landraces of bambara groundnut and some others are grown by subsistence farmers in small patches of land. It is regarded as women's crop in most cultures and frequently intercropped or mixed with cowpea, maize and sorghum (Mkandiwire & Sibuga, 2002;DFID, 2002). Although current country-wide production figure is unavailable, Benue State, located in Southern Guinea Savanna of Nigeria, produced 14,180.00 metric tonnes of bambara groundnut in 2010 from 12,222 ha of land with a mean grain yield of 1.16 t/ha (BNARDA, 2010).…”

Section: Introductionmentioning

confidence: 99%

Nodulation, Nitrogen Yield and Fixation by Bambara Groundnut (Vigna Subterranea (L.)Verdc.) Landraces Intercropped with Cowpea and Maize in Southern Guinea Savanna of Nigeria

Egbe¹

2013

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Abstract:Two separate field experiments were undertaken during the rainy seasons (AugustDecember) of 2010 and 2011 at the Teaching and Research Farm of the Federal University of Agriculture, Makurdi, Nigeria. The objective of the study was to evaluate some landraces of bambara groundnut intercropped separately with cowpea and maize at varying planting densities for nodulation, nitrogen (N) yield and fixation. Each experiment was a 2 x 3 x 3 split-split plot set out in a randomized complete block design with three replications. Intercropping decreased the number and weight of nodules; nitrogen derived from the atmosphere and fixed in both bambara groundnut/maize and bambara groundnut/cowpea intercropping systems. No significant differences were noticed between the landraces in N content of shoot and roots, but 'Okirikiri' had significantly higher N content (3.11 %) of pod with seed than the other two landraces. 'Okirikiri' and 'Adikpo' landraces fixed more N than 'Karo'. N fixed increased with decline in bambara groundnut planting density. Mean percentage of plant N derived from atmosphere varied from 49.80 in the bambara groundnut/maize systems to 56.80 in the bambara groundnut/cowpea intercrops, while N fixed was 11.27 kg/ha and 34.90 kg/ha in the respective intercrop systems. The expectation of enormous contribution of nitrogen fixation to bambrara groundnut yields and its residual effects on soil medium for ensuing crops may be an illusion with the use of the landraces tested in this work, except, probably when inoculated with the appropriate rhizobia?

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“…In this region, these landraces of bambara groundnut and some others are grown by subsistence farmers in small patches of land. It is regarded as women's crop in most cultures and frequently intercropped or mixed with cowpea, maize and sorghum (Mkandawire and Sibuga, 2002). One major constraint in bambara groundnut production in Southern Guinea Savanna is inadequate information on the type and intensity of mixtures with other crop types in the cropping systems practiced by farmers, although Ngugi (1995) had indicated that bambara groundnut would do well if intercropped with maize if the maize planting density was low.…”

Section: Introductionmentioning

confidence: 99%

“…Planting density of bambara groundnut is often low (<100,000 plants/ha) on farmers' fields (Egbe et al, 2009) resulting in low yields. Mkandawire and Sibuga (2002) had reported a spacing of 30 × 30 cm (approximately 111,000 plants/ha) in Tanzania and 60 × 30 cm (55,000 plants/ha) in West Africa.…”

Section: Introductionmentioning

confidence: 99%

Bambara groundnut/maize intercropping: Effects of planting densities in Southern guinea savanna of Nigeria

Alhassan¹,

Egbe²

2014

Afr. J. Agric. Res.

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A field experiment was conducted in 2010 and 2011 at the Teaching and Research Farm, FederalUniversity of Agriculture, Makurdi, Nigeria. The aim was to determine the suitability of some landraces of bambara groundnut for intercropping at varying planting densities with maize. The experiment was a 2×3×3 split-split plot laid in a randomized complete block design with three replications. Intercropping decreased number of pods and grain yields of bambara groundnut component. Number of pods and grain yields increased with increased planting density. Productivity indices indicated that bambara groundnut/maize intercropping was productive, and maize was the dominant component. The marginal rate of returns for the best combinations was 116.13%, suggesting profitability of the intercropping systems.

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Yield response of Bambara groundnut to plant population and seedbed type

Cited by 13 publications

References 0 publications

Evaluation of Bambara groundnut varieties for off-season production in Zimbabwe

Evaluation of Bambara groundnut varieties for off-season production in Zimbabwe

Nodulation, Nitrogen Yield and Fixation by Bambara Groundnut (Vigna Subterranea (L.)Verdc.) Landraces Intercropped with Cowpea and Maize in Southern Guinea Savanna of Nigeria

Bambara groundnut/maize intercropping: Effects of planting densities in Southern guinea savanna of Nigeria

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