ALMEIDA, Romário de Sousa.; ARAÚJO, Maria Pereira.; BARBOSA, Francisca Maria.; LACERDA, Alecksandra Vieira.
Résumé:
Tabebuia aurea (Manso) Benth. and Hook and Tabebuia impetiginosa (Mart. Ex DC.) Standl are
species of high socioeconomic and environmental potential, therefore, information is needed on the
production of seedlings of these species. The objective of this work was to analyze the growth and
mortality of T. aurea and T. impetiginosa seedlings. The seeds were collected in December 2017
from an adult matrix in the municipality of Sumé. The work was carried out in the Laboratory of
Ecology and Botany - LAEB/UFCG/CDSA under conditions of 50% shading in polyethylene trays,
containing as substrate sand previously sieved and washed. Seeding was carried out on December 31, 2017. To follow the quantitative of individuals that emerged and mortality were counted daily
and at 30 days of evaluation was carried out the growth in height with the aid of graduated rule. The
emergence of T. aurea seedlings began on the eighth day after sowing and ceased on the twentyseventh day, totaling 88% of emergence. Regarding the emergence of T. impetiginosa, it was
observed beginning on the fifth day after sowing, and ending on the fifteenth day. T. impetiginosa
presented a higher number of dead individuals (4) than T. aurea that presented only one individual
during the evaluation period. T. impetiginosa was distributed in a smaller quantitative height class
in relation to T. aurea, thus assuming a more homogeneous pattern in this parameter of evaluation.
Therefore knowledge of the emergence and development of these species become essential for
regional sustainable development.
