Cowpea Yield Response to Sowing Dates and Irrigation Intervals

References

1. Akhtar, M., Cheema M.S., Jamil M. and L. A. (2006). Effect of time of sowing on some important characters of wheat, Triticum aestivum genotypes. J. Agric. Res., 2006, 44(4):255-258.
2. Ali, R. (1999). Radiation interception, growth and yield of wheat as affected by sowing date and Nitrogen application. M.Sc. Thesis (Agronomy), University of Agriculture, Faisalabad.
3. Ayaz, S. (2001). Variability of Harvest index in four grain legume species. Ph.D. thesis, Lincoln University, Canterbury.
4. Bonanno, A. R.and Mack, H. J. (1983). Water relations and growth of snap beans as influenced by differential irrigation. Journal of the American Society of Horticultural Science 108, 837±844.
5. Chaudhry, A.B. (1981).Cowpea (Vigna unguiculata L. Walp) as a lucrative irrigated dry season crop in the Kainji Lake Basin. Paper presented at the 17th Annual Conference of Agricultural Science of Nigeria at Maiduguri, July 26-31, 1981.
6. Damodaran, A., M. Ramasamy and K. Srinivasan. (1989). Influence of sowing time on performance of urd bean genotypes. Indian J. Pulses Res. 2(2):133-136.
7. Duncan, D.B (1955). Multiple ranges and Multiple "F" test Biometrics.11, 1-42
8. Dugje I.Y., L.O. Omoigui, F. Ekeleme, A.Y. Kamara, and H. Ajeigbe (2009). Farmers' Guide to Cowpea Production in West Africa. IITA, Ibadan, Nigeria. 20 pages.
9. Gallagher, J.N. and Biscoe, P. V. (1978). A Physiological Analysis of Cereal yield. II. Partitioning of dry matter. Agricultural Progress 53, 51±70.
10. Gomez, K.A. and A.A. Gomez, (1984). In: Statistical Procedures for agricultural research. John Willy and sons, New York.
11. Hussaini, M.A. M.K. Othman; M.F. Ishyaku and A.M. Falaki (2004). Response of Cowpea (Vigna unguiculata L. Walp) to methods and levels of irrigation under varying fertilizer levels in Semi-arid region of Nigeria. Abstract; Journal of Food, Agriculture and Environment vol. 2 (3ad): 137-140.
12. Ichi, J.O. (2006). Effects of Sowing Date and Period of Weed Interference on Early Cowpea (Vigna unguiculata L. Walps) cultivar "Achishuru" at Samaru, Nigeria (PGD Project Unpublished ).
13. Kelechukwu, N.E; Adewale, M.O. and Ezikiel, A.A. (2007). Alluminum influence on Performance of some cowpea (Vigna uniguculata) varieties on a Nigerian Alfisol. Word Journal of Agric. Sci. 3(4).512-522, 2007. IDOS. Publication
14. Khanna-Chopra, R. and Sinha, S. K. (1987). Chickpea: physiological aspects of growth and yield. In The Chickpea Eds M. C. Saxena & K. B. Singh), pp.163±189. Wallingford: CAB International Kil, K.Y., K.
15. Langyintuo A.S; Lowenberg-DeBoer J, Faye M; Lamber D. and Ibro G, (2003). Cowpea supply and demand in West Africa. Field Crops Res 82:215–231
16. Little, T.M. and F.J.Hill, (1978). Agricultural Experimentation Design and Analysis. John Wily and sons Inc. New York. 350p.
17. Muhammed, A. A, Falaki, A.M, Amans, E.B. and Ramalan, A.A. (1997). Growth and Yield of Chickpea (Cicer arietinum L.) varieties as affected by Irrigation Frequency and Phosphorus Application. In Proc. of the 12th National Irrigation and Drainage Seminar on Irrigation Sustainable Agriculture. Pp45-51; 14-16th April 1998.
18. Mukhtar, A.A., Muhammed, A.A. and Mussa, M.D. (2006). Response of Groundnut to Irrigation Interval and Sowing date. In Procc. of 13th National Irrigation and Drainage on Managing Irrigation Projects towards Achieving Millennium development goal. Pp73-78, 11-14thJune 2007
19. Ramzan, C.M., Nadeem M.A., Khan R.H. and Khan M.A. (1992). Effect of Sowing date on Mungbean seed yield under rainfed conditions. Pak. J. Agric. Res. 30(2):205-211.
20. Sanders, J.H., B. Shapiro and S. Ramaswamy, (1996). The Economics of Agricultural Technology in Semi-arid sub Saharan Africa. John Hopkins University Press, Baltimore and London.
21. Singh, B.B (2005). Cowpea (Vigna unguiculata L. Walp). In: Singh R.J, Jauhar PP (eds) Genetic Resources, Chromosome Engineering and Crop Improvement. Volume 1, CRC Press, Boca Raton, FL, USA, pp. 117– 162.
22. Singh, B.B, and Tarawali S.A. (1997). Cowpea and its improvement: key to sustainable mixed crop/livestockfarming systems in West Africa. In: Renard C (ed) Crop Residues in Sustainable Mixed Crop/Livestock Farming Systems, CAB in Association with ICRISAT and ILRI, Wallingford, UK, pp. 79–100
23. Soomro, N.A.(2003). Response of Mungbean Genotypes to different dates of sowing in kharif season under rainfed condition. Asian J. Plant Sci., 2: 377–379
24. Snedecor, G.W and W.G. Cochram, (1967). Statistical Methods sixth edition: Iowa University, Press, Iowa, U.S.A. 606-607
25. Subbarao, G.V., C.R. Renard, W.A. Payne and A.B. Batiano, (2000). Long term effects of tillage, P fertilization and crop rotation on pear/millet/cowpea productivity in West Africa. Experimental Agriculture, 36: 243-264.
26. Tarawali S.A, Singh B.B, Gupta S.C, Tabo R., Harris F, (2002). Cowpea as a key factor for a new approach to integrated crop–livestock systems research in the dry Savannas of West Africa. In: Fatokun, C.A.
27. Timko M.P, Ehlers J.D, and Roberts P.A (2007). Cowpea. In: Kole C (ed) Genome Mapping and Molecular Breeding Plants, Volume 3, Pulses, Sugar and Tuber Crops, Springer Verlag, Berlin Heidelberg. pp. 49–
28. Ziska, L.H., and A.E. Hall. (1983). Seed yields and Water use of Cowpeas (Vigna unguiculata L. Walp.) subjected to planned-water-deficit irrigation. Irrig Sci.3:237-245.