The species ‘cancorosa’ (Maytenus ilicifolia Martius ex Reissek) and ‘grápia’ (Apuleia leiocarpa (Vogel) Macbride) have been considered two endangered Brazilian forest trees due to the excessive exploration of natural resources and, therefore, information about suitable methods for their propagation is relevant. The aim of this work was to evaluate different pots and the types of substrate in the production of seedlings of ‘cancorosa’ and ‘grápia’. The treatments followed a bifactorial scheme (7x3), represented by seven pot sizes: plastic bag (small, medium, and large size, respectively, 1515, 3064, and 6031cm³), laminated wooden pot (small, medium and large size, respectively, 497, 829, and 1161cm³) and plastic tube (only one size, cylindrical model, 50cm³), and three types of substrates: soil alone (profile A from a red yellow podzolic soil), soil + carbonized rice husk, and medium sand + carbonized rice husk, 1:1 v/v). The sowing of both species was effectuated on 12 December 1997 and the experiment lasted for 135 days under ambient temperature. At this date, the percentage of plant survival, plant height, stem diameter 0,5cm aboveground, length of the root system, dry weight of roots, stem, leaves, and total of the plant, as well as the physical properties of the substrates were analyzed. The small plastic bag, in combination with soil + carbonized rice husk, shows a suitable condition on the seedlings production of ‘cancorosa’. The medium and large plastic bags and the large wooden pot, in combination with soil + carbonized rice husk and soil alone, present an adequate condition on the seedlings production of ‘grápia’.
cancorosa; grápia, pot size; substrate; seedling; production
