Abstract
Abstract: Angico is a species found in several environments in Brazil, with several applications. It is used in the timber industry and mainly in folk medicine. In order to verify a variation in the biometric characteristics and the quality of seeds from different mother-plants in different harvesting years, the following variables were studied: moisture content, diameter, density, electrical conductivity, fresh and dry matter of seedlings, germination percentage and kinetics, in a completely randomized design with a 2x3 factorial arrangement (lots x size). The obtained results showed that angico seeds from different lots showed different physiological quality, possibly due to the climate variations to which mother-plants were submitted in the different years. Seed size directly interferes with seedling growth under both controlled and greenhouse conditions, and it can be used as a vigor indicator for angico seeds.
Highlights
The Caatinga presents a heterogeneous vegetation. It is a biome with at least 932 species registered for the region, of which 380 are endemic, with 20 occurrence genera in this biome alone (MMA, 2002), as well as being a biome that is restricted to the Brazilian territory
The purpose of this research was to evaluate the influence of different harvests and sizes on the physiological quality of A. colubrina seeds collected within the same tree population in a Caatinga area, in two subsequent years
A. colubrina seeds presented about 6.5% of moisture content; this was similar for all lots, except for small seeds collected in 2012, which presented a lower moisture content (6.27%) than the others (Table 2)
Summary
It is a biome with at least 932 species registered for the region, of which 380 are endemic, with 20 occurrence genera in this biome alone (MMA, 2002), as well as being a biome that is restricted to the Brazilian territory. Among the plants with phytotherapeutic potential, it is possible to highlight Anadenanthera colubrina (Vell.) BRENAN (Fabaceae), commonly known as angico (Weber et al, 2011), with natural occurrence in semideciduous seasonal forests and mixed rain forests (Rego et al, 2007) In popular medicine, it is commonly used for lung diseases, through decoctions, juices (Silva et al, 2012 b), as well as through the surface of the stem, in addition to the narcotic properties of its fruits (Agra et al, 2007). Besides its application in the timber industry, civil construction, hydraulic installations, crossties and boards, it can be used to decorate squares and parks, and in recovering degraded areas (Lorenzi, 2009)
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