International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 1
First page : (820) Last page : (827)
Article doi: http://dx.doi.org/10.18782/2320-7051.5526

Response of Cowpea (Vigna unguiculata L.) Genotypes to Sowing Windows and Planting Geometry under Northern Transitional Zone of Karnataka

Prabhamani, P. S.* and Potdar, M. P.
Department of Agronomy, College of Agriculture, Dharwad, UAS, Dharwad-580005
*Corresponding Author E-mail: prabha829@gmail.com
Received: 24.08.2017  |  Revised: 20.09.2017   |  Accepted: 27.09.2017  

 ABSTRACT

An experiment was carried out to study the effect of sowing dates and planting geometry on growth, yield, yield attributes and economics of two cowpea genotypes. The field trial was conducted during kharif 2013 under rainfed conditions at Main Agricultural Research Station, Dharwad. The experiment was laid out in split-split plot design with three replications. The experiment comprised of three dates of sowing (June second fortnight, July first fortnight and July second fortnight) in main plot, three row spacings (30, 45 and 60 cm) in sub plot and two genotypes (DC 15 and C -152) in sub-sub plot.
Results indicated that significantly higher seed yield (1155 kg ha-1), haulm yield (2535 kg ha-1), net return ( 32816 ha-1) and B:C ratio (3.13) were recorded in cowpea sown during second fortnight of June as compared to first and second fortnight of July sowing. Similar trend was observed for growth and yield attributing parameters such as number of branches, leaf area, leaf area index, leaf area duration, total dry matter production, number of pods plant-1, seed weight plant-1. Among the row spacings significantly higher growth and yield attributes, seed yield (1062 kg ha-1), haulm yield (2373 kg ha-1), net return ( 28751 ha-1) and B:C ratio (2.83) were recorded in 45 cm row spacing and it was on par with 30 cm as compared to 60 cm row. Genotype DC 15 recorded significantly higher growth and yield attributing parameters, seed yield (1026 kg ha-1), haulm yield (2279 kg ha-1), net return ( 27238 ha-1) and  B:C ratio (2.73) as compared to C-152.

Key words: cowpea seed yield, sowing dates, planting geometry, genotypes, cowpea economics

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Prabhamani, P.S. and Potdar, M.P., Response of Cowpea (Vigna unguiculata L.) Genotypes to Sowing Windows and Planting Geometry under Northern Transitional Zone of Karnataka, Int. J. Pure App. Biosci.6(1): 820-827 (2018). doi: http://dx.doi.org/10.18782/2320-7051.5526