Abstract
The goal of this study was to determine and correlate the main morphometric characteristics of fruits, seeds, and seedling vigor of Agonandra brasiliensis, in Roraima. The design was completely randomized with three treatments, consisting of six replications with 20 seeds. The treatments established were three classes of seeds: T1 - small seeds (S = 1.50-1.69 g); T2 - medium seeds (M = 1.70-1.89 g) and T3 - large seeds (L = 1.90-2.09 g). The variables evaluated were: length; diameter; the fresh mass of fruits and seeds; percentage, speed (in index) and average time of emergence, length of roots and aerial part; number of leaves; fresh, dry and total seedling mass; seedling lignification index; root/shoot ratio and dry root/shoot ratio and correlations between all studied variables. The fresh mass of the fruit of Agonandra brasiliensis has a high positive correlation with the mass of seeds. Small seeds of Agonandra brasiliensis exhibit a higher percentage of emergence in the conditions of the northern Amazon.
Highlights
Small seeds of Agonandra brasiliensis exhibit a higher percentage of emergence in the conditions of the northern Amazon
The Agonandra brasiliensis Miers ex Benth. & Hook. f., a species popularly known as cerveja-depobre, pau-marfim, quina-de-veado, is a species belonging to the family Opiliaceae (Smiderle et al 2020)
The average values of length, diameter, and fresh weight of the fruits and seeds of Agonandra brasiliensis are presented in Table 1, where the variability of the dimensions of the fruits of Agonandra brasiliensis is observed
Summary
The Agonandra brasiliensis Miers ex Benth. & Hook. f., a species popularly known as cerveja-depobre, pau-marfim, quina-de-veado, is a species belonging to the family Opiliaceae (Smiderle et al 2020). F., a species popularly known as cerveja-depobre, pau-marfim, quina-de-veado, is a species belonging to the family Opiliaceae (Smiderle et al 2020). This species occurs in the Cerrado and Cerradão in the states of Roraima, Amazonas, Acre, Rondônia, Bahia, Ceará, Espírito Santo, Goiás, Maranhão, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Pará, Piauí, São Paulo, in the District Federal (Souza et al 2020a). In the seedling production sector, interest in the propagation of native forest species is growing (Smiderle et al 2017). The seeds of forest species need to have sanitary quality and vigor, as they are important factors in the success of germination and provide quality in a batch of seeds, in order to avoid losses through deterioration and decomposition or even to generate abnormal seedlings or with lesions that prevent them from growing vigorous (Smiderle et al 2018)
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