Influence Of Propagation Medium On The Growth And Development Of Seedlings Of Avocado (persea Americana Mill.) Papaya (carica Papaya L.) And Guava (psidiu11l Guajava L.).

The experiment was conducted to evaluate the influence of different mixes of growth media onrnthe growth and development of avocado, papaya and guava seedlings. It was undertaken in thernnursery site of the Center for Indigenous Trees Propagation and Biodiversity Development. Thernstudy focused on addition of cattle manure and sand to topsoil. Six media mixes were prepared.rnThe ratio of these media mixes, as treatment was determined on volume bases using flowerpot.rnThus, treatments were: topsoil (Tl); topsoil, cattle manure & sand, 3:1:1(T2); topsoil, cattlernmanure & sand, 2: 1 :1(T3); topsoil, cattle manure & sand, 1:1: 1 (T4); topsoil & sand, 1 :I(TS); andrntopsoil and cattle manure, 1: 1 (T6) and studied in a complete randomized design with threernreplications separately for avocado (Persea americana), papaya (Carica papaya) and guavarn(Psidium guajava). The data on total shoot height and numbers of fully expanded leaves per plantrnwere collected starting from 7 weeks after germination up to IS weeks of growth in the nursery atrntwo weeks interval. Sample leaves were collected at the termination of the former two parametersrnfor the determination of leaf fi'esh and dry biomass. The data taken at the termination of thernmeasurement was used for analyses. The different media mixes did not significantly influence onrnany parameter of avocado; while leaf number and leaf dry weight of papaya; and the leaf freshrnweight of guava seedlings were significantly influenced (p

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