Abstract
Abstract The Anacardium humile A. St.- Hil. fruit tree has productive potential, being their fruits appreciated in the Cerrado region for having characteristic flavor, however, this species is still exploited in an extractive way, being necessary studies for its domestication. The aim of this work was to estimate the leaf area of Anacardium humile. One hundred leaves were collected in the biological collection from a genetic resources field and evaluated for length, width and fresh weight, and scanned at resolution of 300 dpi to determine the leaf area with the aid of the ImageJ image analysis program. Subsequently, a leaf disc with a diameter of 22.27 mm was detached at the basal portion of each leaf, in which the fresh weight of the discs was obtained. Data were submitted to descriptive analysis and the relationship among the features explained by Pearson’s correlation with the software Rbio. The data were also subjected to regression analysis to explain the relationship between leaf area and measurements of width, length and leaf weight, and to fit the proper statistical model with the software Origin. It was concluded that leaf area can be determined by image analysis software and linear measurements are correlated to leaf area.
Highlights
The Cerrado is the second largest Brazilian biome, standing out as one of the richest in the world for having species with pharmaceutical and food potential (LIMA; PORTARI, 2019)
The A. humile leaves evaluated were selected in the collection of the field of genetic resources with 542 plants cultivated from seeds, which were obtained in fourteen municipalities
Due to the genetic variability that occurs in A. humile, plants are highly divergent from the fruits to the size of the plants (SANTOS et al, 2020), which leads to variation in the size of their leaves
Summary
The Cerrado is the second largest Brazilian biome, standing out as one of the richest in the world for having species with pharmaceutical and food potential (LIMA; PORTARI, 2019). It can be found in Goiás, Mato Grosso, Tocantins, Mato Grosso do Sul, Minas Gerais, Rondônia, São Paulo, Distrito Federal and some parts of Piauí, Bahia and Maranhão (REIS; SCHIMIELE, 2019), with area of approximately 2 million km, which represents almost 25% of the national territory (DURIGAN; RATTER, 2016) This biome presents predominantly seasonal tropical climatic conditions with rainfall of approximately 1500 mm, which is favorable for the development of attractive species for exploitation, research and marketing, and these species are characterized by having high nutritional value, characteristic flavor and aroma, and healthy appeal (REIS; SCHMIELE, 2019). Studies with wild species are an important alternative for incorporating them into the commercial chain (CARVALHO et al, 2005; ATAÍDE et al, 2012)
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