Symbiotic N2 fixation in 30 field-grown cowpea (Vigna unguiculata L. Walp.) genotypes in the Upper West Region of Ghana measured using 15N natural abundance

@article{Belane2009SymbioticNF,
  title={Symbiotic N2 fixation in 30 field-grown cowpea (Vigna unguiculata L. Walp.) genotypes in the Upper West Region of Ghana measured using 15N natural abundance},
  author={Alphonsus K. Belane and Felix Dapare Dakora},
  journal={Biology and Fertility of Soils},
  year={2009},
  volume={46},
  pages={191-198}
}
In this study, 30 cowpea genotypes were assessed for symbiotic N2 fixation in 2005, and 15 of them were re-evaluated in 2006 using the 15N natural abundance technique. Shoot dry matter yield of cowpea genotypes increased significantly in cvs. Vuli-1, Glenda, IT93K-2045-29, IT90K-59, Omondaw, Apagbaala, and IT84S-2246 in 2005 producing about 3.0 to 3.6-fold more biomass relative to cv. Vallenga. In 2006, seven out of the 15 cowpea genotypes tested (namely, IT97K-499-39, TVu11424, Botswana White… CONTINUE READING