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Viability of seeds stored in fruits Handroanthus heptaphyllus

Grant number: 10/14035-2
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): March 01, 2011
Effective date (End): October 31, 2012
Field of knowledge:Agronomical Sciences - Forestry Resources and Forestry Engineering
Principal Investigator:Edson Seizo Mori
Grantee:Maria Rita Silva Gilli Martins
Host Institution: Faculdade de Ciências Agronômicas (FCA). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil


The species Handroanthus heptaphyllus (ipe purple seven leaflets) belongs to the family Bignoniaceae, with about 120 genera and 800 species, 100 species currently included in the genera Tabebuia and Handroanthus. Its seeds are classified as orthodox, though not tolerate long periods of storage. Still, some studies suggest an action of inhibition of seed germination by the action of phenolic compounds. Aiming to increase the length of seed viability of ipe, many authors have studied the behavior of these seeds in various types of storage. The technique of storing fruits may prolong the storage of seeds, since it has been observed the existence of flow of nutrients from fruits to seeds after harvest. This work aims to extend the viability of seeds of species Handroanthus heptaphyllus by storage it in its own fruit, harvested at four different stages of physiological maturity and stored in three different environments (dry chamber, cold room and environment) with humidity and distinct temperature for a period of one year. It also aims to determine the concentration of total phenolics from the bark of the fruit and seeds, in order to relate germination percentage and concentration of total phenols. For each treatment, plot and subplots, will be determined the water content, germination percentage and the concentration of phenolic compounds, seeds and peels of fruits. The experiment is completely randomized, with two treatments (storage of fruit and seed storage) split plot, and the environment (dry chamber, cold chamber and the environment) plots and storage period (1-12 months) the subplots.

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Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MARTINS, Maria Rita Silva Gilli. Feasibility of seeds handroanthus heptaphyllus (vell.) mattos stored in fruit. 2013. Master's Dissertation - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agronômicas. Botucatu Botucatu.

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