Browsing by Author "HaHu, Beira"
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Item 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.).(Addis Ababa University, 2016) HaHu, Beira; Negash, Legesse (Professor)The experiment was conducted to evaluate the influence of different mixes of growth media on the growth and development of avocado, papaya and guava seedlings. It was undertaken in the nursery site of the Center for Indigenous Trees Propagation and Biodiversity Development. The study focused on addition of cattle manure and sand to topsoil. Six media mixes were prepared. The ratio of these media mixes, as treatment was determined on volume bases using flowerpot. Thus, treatments were: topsoil (Tl); topsoil, cattle manure & sand, 3:1:1(T2); topsoil, cattle manure & sand, 2: 1 :1(T3); topsoil, cattle manure & sand, 1:1: 1 (T4); topsoil & sand, 1 :I(TS); and topsoil and cattle manure, 1: 1 (T6) and studied in a complete randomized design with three replications separately for avocado (Persea americana), papaya (Carica papaya) and guava (Psidium guajava). The data on total shoot height and numbers of fully expanded leaves per plant were collected starting from 7 weeks after germination up to IS weeks of growth in the nursery at two weeks interval. Sample leaves were collected at the termination of the former two parameters for the determination of leaf fi'esh and dry biomass. The data taken at the termination of the measurement was used for analyses. The different media mixes did not significantly influence on any parameter of avocado; while leaf number and leaf dry weight of papaya; and the leaf fresh weight of guava seedlings were significantly influenced (p