Inoculation study of Phytophtora palmivora ( Butl.) Butl on 2 Piper spp and 5 cultivars of Piper nigrum , indicated that toxin inoculation was comparable to fungal inoculation. The former technique could therefore be recommended in place of fungal inoculation in the screening of Piper for foot rot resistance.The advantages of using toxins over fungal inoculations were discussed. The study further showed that 2 distinct groups of Piper spp are present : the resistant group consisting of P. colubrinum and P. sarmentosum and the susceptible group consisting of the 5 cultivars of P.nigrum namely Kuching. Bangka. Djambi. Uthirancotta and Belantung.

 

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