Experimentation on the propagation of Baccharis trimera (Less.) DC, Compositae (Carqueja)

Plants were propagated by fruits and cuttings. Cuttings were rooted in two seasons: autumn (May 19, 1992), in a field nursery under plastic cover, and spring (September 14, 1992) in plastic containers under shade. Seeds were sown in a field nursery under plastic cover on June 8, 1992. Plants were ta ken to the field on November 25, 1992, planted at a spacing of 30 x 40 cm. For the three treatments, the mortality of plants after transplanting was 4 2, 4 and 46% respectively. Within each treatment, plants were harvested on February 5, 1993, November 12, 1993 and November 3, 1994. Dry matter yield was measured for plants propagated by cuttings in autumn, for plants propag ated by cuttings in spring and for plants propagated by seed. The results w ere 154 g/plant, 235 g/plant and 215 g/plant respectively. If compared to p lants obtained by the same methods, but which were only harvested on one oc casion (December 23, 1993), dry matter yields were respectively 174, 199 an d 251 g/plant. These results were not subject to statistical analysis.