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    • Effect of the Stage of Infection by Rust on Yield of French Beans 

      Mwangi, M.; Mutitu, E.W.; Mukunya, D.M.; Seif, A.A. (1999)
      The most critical periods of infection of French beans were planted at two sites--Kabete, where temperatures are cool and Naivasha, where it is warmer. They were inoculated with the rust pathogen at six different stages ...