Seed biometry, growth, and seedling development of Adenium obesum Roem. Schult. en substratos

The desert rose (Adenium obesum (Forssk.) Roem. & Schult.) is a plant that has been widely used for garden ornamentation, holding significant importance in the landscaping and gardening market. Thus, establishing a way to perform biometric analysis and a seedling production system that offers significant utilization of water and available materials for substrate composition in each region is crucial for propagation and the quality of these plants. The objective of this study was to evaluate biometric aspects and investigate the influence of different substrates on the physiological potential of seeds and the initial growth of desert rose seedlings. This study was conducted at the Vitrine do Verde plant store located on Rodovia Dr. Ib Gatto Marinho Falcao, AL 101 south--Barra Nova, Marechal Deodoro--AL (9[degrees]43'31.2"S 35[degrees]49'46.6"W), with A. obesum seedlings produced from seeds. This study identified crucial points for seedling growth and development, providing information that allowed optimizing the production system with reduced costs. It was observed that among the substrates used, the use of treatment T3 composed of decomposed rice husk (55%) + carbonized rice husk (15%) + topsoil (15%) + peanut shell (15%) is preferable, as it proved to be efficient in the analyzed parameters. However, it is worth noting that further studies are necessary to increase knowledge and facilitate the cultivation of this highly appreciated crop. Keywords: Adaptation. Development. Cost/Benefit. Desert Rose. O deserto rosa (Adenium obesum (Forssk.) Roma. & Schult.) e uma planta que tem sido amplamente utilizada para ornamentacao de jardim, tendo importancia significativa no mercado de paisagismo e jardinagem. Assim, estabelecer uma forma de realizar analises biometricas e um sistema de producao de mudas que ofereca utilizacao significativa de agua e materiais disponiveis para a composicao de substratos em cada regiao e crucial para a propagacao e a qualidade dessas plantas. O objetivo deste estudo foi avaliar aspectos biometricos e investigar a influencia de diferentes substratos sobre o potencial fisiologico das sementes e o crescimento inicial de mudas de rosas do deserto. O estudo foi realizado na loja da Vitrine do Verde, localizada na Rodovia Dr. Ib Gatto Marinho Falcao, AL 101 sul--Barra Nova, Marechal Deodoro--AL (9[degrees]43'31,2"S 35[degrees]49'46,6"W), com mudas de A. obesum produzidas a partir de sementes. Esse estudo identificou pontos cruciais para o