SELECTION, CHARACTERIZATION, AND PROPAGATION OF ORNAMENTAL SPECIES WITH MULTIFUNCTIONAL POTENTIAL
Contemporary landscaping; Urban horticulture; Plant biotechnology; Sweet potato; Vanilla planifolia.
Horticulture has been increasingly guided by plant systems that integrate multiple functionalities, based on the principle that a single species can express different aptitudes. Sweet potato and vanilla fit within this context by integrating aesthetic, food, and industrial characteristics. The study of these two species is complementary, as they address important stages of the multifunctional production chain. Sweet potato is revealed as a model for the selection of multiple aptitudes, while vanilla exemplifies the development of propagation technologies. Therefore, the objective of this thesis was to contribute to the application of plant multifunctionality through genotype selection and optimization of propagation systems. For this purpose, two articles were developed: the first aimed to characterize and select sweet potato genotypes with multifunctional potential for landscape use in beds and for food production of roots and leaves; and the second presented a new strategy for vanilla propagation using temporary immersion bioreactors. It is concluded that the approach proposed in this thesis contributes to selection programs and management strategies for plants with multiple aptitudes, in addition to supporting the use of biotechnological technologies to enable large-scale production.