Research Article Influence of the use of manioc on its genetic diversity conservation in a quilombo community in Mato Grosso, Brazil

Abstract

income mainly from cassava cultivation and flour production for the market, direct their variety choices to those that are most productive. Brava variety was the most frequent (found in eight family units) and was considered the most profitable for the production of flour Network analysis showed that propagule circulation and information occurs between the residents and also with other communities of the region, which are important sources of new varieties. Two farmers were identified as the most active in this network, showing potential as key elements for the circulation of propagating material. According to the cluster analysis using the genetic data, the most recently introduced varieties (Baixinha, Liberatona, Broto roxo, Mansa, Ramo branco, Carneiro and Cuiabana) are separated from those introduced a long time ago. The varieties pointed out as bitter by the farmers were also grouped together. The results showed the importance of traditional farmers in maintaining a high genetic diversity of manioc varieties, despite the directing of the choice of varieties to meet market needs.

Afro-diasporic ethnobotany: Food plants and food sovereignty of Quilombos in Brazil

“…A source of carbohydrates, produced with low inputs and with ease of vegetative propagation (Clement et al 2010) , the manioc varieties in traditional agriculture are managed according to the social dynamics of exchanges and mass selection, favoring resilience and dietary diversity (Cavechia et al 2014) . At Quilombola community São Benedito, in a transition area between Cerrado and Pantanal, 11 manioc varieties identified in the gardens were observed with high rates of genetic diversity in relation to other crops in the region (Oler et al 2019) . In São Roque community, in Atlantic Forest, the occasional scarcity of locally produced items such as manioc, sweet potatoes, rice, and beans put the food security of Quilombola families in a vulnerable situation (Gonçalves et al 2022) .…”

Levantamento e caracterização fenotípica de etnovariedades de mandioca cultivadas em assentamentos rurais no estado de Mato Grosso, Brasil

“…Quanto à média geral de etnovariedades, mantidas pelos agricultores, analisouse levando em consideração apenas as que apresentaram diferentes denominações (21) nas 33 propriedades e se obteve um valor de 0,64. Comparando esses resultados com outros autores, como Oler et al, (2019) e Tiago et al, (2016), nos quais se apresentam médias de 2,3 e 1,23, respectivamente, percebe-se que a diversidade de etnovariedades com diferentes denominações mantidas pelos agricultores nos três assentamentos é relativamente baixa (0,66).…”