Coleta e caracterização morfológica de populações de porongo – Lagenaria siceraria (Mol.) Standl. - Cucurbitaceae

Abstract

Fruits of Lagenaria siceraria (Mol.) Standl. were collected in the municipal district of Santa Maria and Jaguarí (RS) with the objective of characterizing some local races used by the producers. Three populations of L. siceraria were characterized and classified as casco-grosso caciquense, casco-fino caciquense and casco-grosso precoce. It was made a morphologic characterization based on descriptors of mature fruit, seeking to verify the existent genetic divergence among these local races. The data were submitted the grouping analysis, as dissimilarity measure was used the distance of Mahalanobis (D²) and the used grouping methods were the "Método do vizinho mais próximo" (Single Linkage Method) and the method of Tocher, these methods obtained the populations in two heterogeneous groups. The porongo populations collected in Santa Maria didn't show genetic divergence being placed in the same group and the population collected in Jaguarí it was placed in another group.

Caracterização de acesso de porongo-chuchu (Lagenaria siceraria)

“…No entanto, segundo Melo & Trani (2014), por causa do custo elevado do tutoramento, geralmente o cultivo é rasteiro. Os frutos de L. siceraria são do tipo bacóide, apresentando ampla variabilidade de formato (SILVA et al, 2002;MLADENOVIĆ et al, 2012;TREVISOL, 2013;Delgado-Paredes et al, 2014;Valduga, 2017). No acesso de porongo-chuchu, os frutos são majoritariamente de formato piriforme A textura do epicarpo do porongo-chuchu é lisa.…”

Waterproofing of bottle gourd (Lagenaria siceraria) with castor oil polyurethane resin

“…The morphological variation of bottle gourd is a characteristic feature of the species (Figure 1a), there are many variations of shape, size and thickness [14]. The fruits used in this work were collected in Santa Maria, Rio Grande do Sul state, Southern Brazil.…”

Design, tecnologia e matérias-primas locais: uso da microtomografia na caracterização da microestrutura do porongo (Lagenaria siceraria)

“…A forma e o tamanho dos frutos são variações morfológicas comuns à espécie (SILVA et al, 2002). Podem ser alongados, cilíndricos, curvados, oblongos, redondos ou mesmo cônicos (Figura 2).…”