Influence of virus infection on the leaf protein yield.

Influence of cowpea mosaic virus (CPMV) and common bean mosaic virus (CBMV) infection on the yield of extractable leaf protein of cowpea cvs. Pusa Phaguni, Pusa Barsati, and Yard Long was studied. An increase as well as decrease in the yield of leaf protein concentrate (LPC), due to virus infection, has been observed. CPMV infection increased LPC yield in all the cowpea cvs., but CBMV decreased it in cys. Pusa Phaguni and Yard Long. Variation in percentage of extractable nitrogen and protein in LPC was also notices. However, total N and protein in leaf and LPC were increased due to virus infection, but total sugar and starch decreased.