Biotecnologia genética, fisiológica e histopatológica de sementes e plantas de híbridos de maracujazeiro
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Data
2024-07-19
Autores
Nascimento, Gilma Rosa do
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Universidade Federal do Espírito Santo
Resumo
Passion fruit represents an important economic activity for the southern region of the State of Espirito Santo. There is a notable need for research that helps leverage the commercial passion fruit production system and establish strategies to increase productivity, as well as manage and make use of the variation in available genetic material. In view of the above, the objective of this work was to study biotechnological advances and the genetic diversity of species of the genus Passiflora spp. based on qualitative and quantitative characteristics of plants and the physiological quality of seeds from cultivated and native plants. Intraspecific pollinations will be carried out using plants of passion fruit genotypes native to the Restinga P. mucronata, resistant to Fusarium oxysporum f. passiflorae and Fusarium solani in which plants originating from hybrid seeds will be tested for the heritability of resistance for the indication of commercial passion fruit rootstock, as well as the responses of plants subjected to the use of phytoregulators. The experiments will be conducted at the Seed Analysis Laboratory of the Center for Agricultural Sciences and Engineering at the Federal University of Espírito Santo (CCAE-UFES), municipality of Alegre Espirito Santo. Seeds and seedlings from mature fruits of five species of passion fruit will be used: sour yellow passion fruit (Passiflora edulis f. flavicarpa), sour purple passion fruit (P. edulis Sims), native restinga passion fruit (P. mucronata), passion fruit wild sweet (P. alata spp.), commercial sweet passion fruit (P. alata Curtis). The material comes from the southern region of the state of Espirito Santo 20° 45′ 48″ S - 41° 32′ 2″ W. It is expected from the knowledge and propagation of this material to establish the best method of propagation and conservation of available genetic material, plants free from soil diseases and seminiferous seedlings, from intraspecific hybridizations expressing resistance to Fusarium oxyporum passiflorae, across the various areas of study involved F. oxysporum passiflorae and F. solani
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Maracujá , Herança genética , Resistência à fusariose , Enxertos , Fitormônios , Passion fruit , Genetic inheritance , Disease resistance , Grafts , Phytohormones