Banca de DEFESA: CATHERINE SIQUEIRA ALVES XAVIER

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : CATHERINE SIQUEIRA ALVES XAVIER
DATE: 28/07/2025
TIME: 14:00
LOCAL: Sala virtual (Defesa online) - meet.google.com/wvk-wgqk-wxw
TITLE:

Geographical Indication of Cassava (Manihot esculenta – Euphorbiaceae) for the producing microregions of Rio de Janeiro, Brazil

KEY WORDS:

principal component analysis; agricultural crop; geoprocessing; INPI (Brazilian National Institute of Industrial Property)

 

PAGES: 67
BIG AREA: Ciências Agrárias
AREA: Engenharia Agrícola
SUBÁREA: Engenharia de Água e Solo
SPECIALTY: Conservação de Solo e Água
SUMMARY:

Cassava (Manihot esculenta – Euphorbiaceae) is a widely cultivated crop across the Southern Hemisphere, recognized for its socioeconomic and nutritional importance. Designated by the United Nations (UN) as the "food of the 21st century," it is notable for its high energy value, playing a crucial role in ensuring food security for vulnerable populations. Currently, Nigeria leads global cassava production, with Brazil ranking fifth. In the Brazilian context—where it is also known as aipim or macaxeira—cassava holds deep cultural and historical significance, having been cultivated by Indigenous peoples since pre-colonial times. This versatile and highly adaptable plant has a broad geographic distribution within Brazil and substantial economic importance, ranking among the country's leading agricultural products in terms of volume and yield. Its roots are mainly used for the production of flour and starch, as well as for fresh consumption and animal feed. In the state of Rio de Janeiro, the municipality of São Francisco de Itabapoana is the largest cassava producer and is closest to obtaining a Geographical Indication (“IG”) for cassava flour. In Brazilian legislation, GIs include Indication of Source (“IP”) and Designation of Origin (“DO”), which aim to protect notable products and services that have become well-known or possess specific qualities linked to their geographic origin. The National Institute of Industrial Property ("INPI") is responsible for the registration and recognition of GIs in Brazil, promoting the identification and valorization of regional products. The establishment of a Geographical Indication is a strategic collective tool enabling producers to promote their regional products while preserving the quality and reputation built over time. This study focuses on four cassava-producing microregions in the state of Rio de Janeiro. Its main objective is to conduct an edaphoclimatic analysis of these areas through the application of Principal Component Analysis (PCA), a statistical technique widely used in environmental and meteorological research. The goal is to identify clusters and similarities among municipalities that could technically justify the potential for obtaining a collective GI for cassava. Geoprocessing tools were used to interpolate all data on precipitation, temperature, elevation, and soil. These data were then tabulated and analyzed using the software PAST 4.03. PCA proved effective for the intended purpose, with the first principal component (PC1) accounting for over 70% of total data variance in the first two analyses, and the first three components combined explaining the same proportion in the third. The results revealed two groups of municipalities with similar edaphoclimatic characteristics: the first located in the microregions of Cachoeiras de Macacu and Rio de Janeiro (Duque de Caxias, Magé, Guapimirim, and Cachoeiras de Macacu), and the second in the Campos dos Goytacazes microregion (São Francisco de Itabapoana, Campos dos Goytacazes, and Quissamã).

COMMITTEE MEMBERS:
Presidente - 1931586 - SADY JUNIOR MARTINS COSTA DE MENEZES
Externo ao Programa - 2938795 - FABIO CARDOSO DE FREITAS - UFRRJExterno à Instituição - GETÚLIO FONSECA DOMINGUES - UFMG