Browsing by Author "Dick, J."
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Item Propagation of two Miombo Woodland Trees by Leafy Stem Cuttings Obtained from Seedlings(2001-02) Magingo, Francis S.; Dick, J.The rooting ability of leafy stem cuttings harvested from four to five month old seedlings of B. spiciformis Benth and P. angolensis DC was tested in low-technology non-mist propagators suitable for the rural tropics. Both species were successfully rooted; P. angolensis was a faster rooting species (86% after 61 days) compared with B. spiciformis (59% after 154 days). Regression analysis suggested that P. angolensis had more stored carbohydrates, which facilitated its rooting while B. spiciformis was more dependant on current assimilates produced during the period of propagation. The results of this study suggest that it is possible to develop clones of genetically superior trees of B. spiciformis and P. angolensis for use in agroforestry or reforestation programmes.Item Rooting Ability of Leucaena Leucocephala Stem Cuttings(1998-08) Dick, J.; Magingo, Francis S.; Smith, R. I.; McBeath, C.Single-node leafy and leafless cuttings harvested from one-year-old, 1.3 to 1.5 m tall Leucaena leucocephala seedlings were successfully rooted in a non-mist propagator which is suitable for use in the rural tropics. Cuttings with a leaf attached rooted more successfully than those without a leaf (71% and 39% respectively) and clones differed significantly (43% to 71%). There was also a clear pattern in rooting ability of cuttings collected sequentially down the main stem. Cuttings rooted most successfully when taken from node five to 13, counting from the apex; this was the region where internodes were longest (64 to 109 mm) of moderate diameter (2.9 to 5.5 mm) and all cuttings had a leaf attached.