Abstract
ABSTRACT The objective of this study was to obtain information about the characteristics of Poincianella pyramidalis (Tul.) through morphological characters. We have analyzed eleven genotypes of P. pyramidalis, at least 100 meters far apart among themselves, located in the municipalities of Santa Teresinha and Castro Alves, in the State of Bahia, Brazil. The genotypes were identified with aluminum plaques, georeferenced, evaluated according to their height and diameterat ground level, number of tillers per plant and fruit production. One hundred fruits for each genotype were collected and measured relative to their length, width (in the proximal, medial and distal positions), thickness and number of loci.Analyses have been performed: descriptive, Pearson correlation between the variables in addition to the cluster analysis for qualitative variables and subsequent clustering to define the genetic diversity among the species genotypes using the Euclidean average linkage and a cutoff point as an "NbClust" package. The results showed variability among genotypes, with the formation of eleven major groups of genetic dissimilarity. The largest genetic distances are among the G7ST and the G1ST genotypes located in the municipality of and the G1CA and the G8ST genotypes in the municipalities of Castro Alves and Santa Teresinha. The variable with the greatest contribution to divergence was the one with the number of tillers.
Highlights
The Caatingais an exclusively Brazilian biome and, according to the Brazilian Institute of Geography and Statistics (IBGE, 2013), it presents itself as the fourth most extensive biome in the country, with an area of 826,411 square kilometers extending over the entire State of Ceará (100%), over half of the State of Bahia (54%), Paraíba (92%), Pernambuco (83%), Piauí (63%) and Rio Grande do Norte (95%), almost half of the State of Alagoas (48%) and Sergipe (49%), besides, it covers small portions of Minas Gerais (2%) and Maranhão (1%).The Poincianella pyramidalis (Tul.) L
The largest genetic distances are among the G7ST and the G1ST genotypes located in the municipality of and the G1CA and the G8ST genotypes in the municipalities of Castro Alves and Santa Teresinha
For the results found it is appropriate to point out that the plants are in different natural locations and conditions, being the genotypes of Castro Alves in the middle of a pasture and the genotypes of Santa Teresinha in a gallery forest
Summary
According to the same author the P. pyramidalis presents a promising potential in veterinary use, reforestation, agroforestry and fodder for sheep and cattle feeding
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