Effects of substrate and mechanical scarification on the germination of Syagrus oleracea (Arecaceae) seeds

Batista, G. S.; Mazzini, R. B.; Gimenes, Rossano; Pritchard, Hugh W.; Pivetta, Káthia Fernandes Lopes

doi:10.15258/sst.2011.39.3.11

Cited by 9 publications

(5 citation statements)

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“…Th e size and mass of the seeds may be infl uenced by the fruit ripening stage, genetic factors and climatic conditions under which the plant develops (Macedo et al 2009;Batista et al 2011).…”

Section: Resultsmentioning

confidence: 99%

“…3 and 4, respectively. Th e S. romanzoffi ana seeds subjected to dormancy suppression treatments had a moisture content of 12.7%, which is considered low compared with those of other palm species, such as E. oleracea, which has a reported moisture content of approximately 40% (Martins et al 1999a) and 43.4% (Nascimento et al 2007), and S. oleracea, with 19.9% (Batista et al 2011).…”

Section: Germinationmentioning

confidence: 98%

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Fruit biometry and seed germination of Syagrus romanzoffiana (Cham.) Glassm

et al. 2013

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Fruit biometry and seed germination of Syagrus romanzoffi ana (Cham.) Glassm. ABSTRACTSyagrus romanzoffi ana (Cham.) Glassm. is a species native to Brazil that is of ecological and aesthetic importance. Th is study aims to describe the biometric characteristics of S. romanzoffi ana fruits and to assess the eff ects that treatments meant to overcome dormancy and partial drying have on seed germination. For biometric characterization, each repetition consisted of 50 fruits from eight clusters (total, 400 fruits). To evaluate methods for overcoming dormancy, seeds representative of populations were treated by perforation of the operculum; perforation of the operculum and immersion in water for 24 hours; cracking; exposure to fi re for three minutes; and non-removal of fi bers. Th ere was also a control group. In a second experiment, seeds were partially dried. We determined the proportional moisture content of newly harvested seeds (20.2%) and dried them down to moisture contents of 15.5% and 12.7%. All seeds were subjected to a germination test at 30°C. Th e fruits showed biometric variations, with an average of 21.7 mm in longitudinal diameter and 19.7 mm in polar diameter, and a fresh mass of 5.61 g, of which 59.29% was pulp. Th e highest germination rates and vigor to overcome dormancy occurred aft er the operculum was perforated and the seeds were soaked in water for 24 hours. Th e results of the partial drying treatments did not diff er suffi ciently to discourage dormancy in any signifi cant manner. Acta Botanica Brasilica 27(1): 147-154. 2013.

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Section: Resultsmentioning

confidence: 99%

Section: Germinationmentioning

confidence: 98%

Fruit biometry and seed germination of Syagrus romanzoffiana (Cham.) Glassm

et al. 2013

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“…Research about morphology, reproductive organs, and seed germination contributes to the generation of cultivation technologies and species conservation. The knowledge of morphological structures in native forest species helps in the taxonomic identification and the understanding of species autecology, dispersion mechanisms, biological cycle, regenerative process, growth, and development, in addition to the propagation and expansion of native seeds and seedlings trade (Batista et al, 2011;Alves et al, 2013;Gogosz et al, 2015). Besides, studies related to fruits and seeds biometry may provide important information in determining dispersal characteristics, differentiation of species from the same genus, and genetic variability within populations (Santos et al, 2009;Gonçalves et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Morphology and germination of Aegiphila brachiata Vell.: potential species for ecological restoration in atlantic forest

Maggioni¹,

Duarte²,

Vieira³

et al. 2023

Rev. DELOS

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Aegiphila brachiata is a forest native Brazilian species, known as peloteiro, with high capacity for biomass production and resistance to disturbances, having potential use in degraded ecosystems. Seeing the scarcity of studies on the species, we aimed to determine the morphobiometric characteristics of fruits, seeds and seedlings; and evaluate its germination potential. We determined physical characteristics of fruits and seeds, morphological description of seeds, germination stages and seedling development. Germination was in a completely randomized design (factorial scheme), with three temperatures (20, 25, and 30°C) and two methods of overcoming dormancy (partial and total endocarp removal). Fruits are indehiscent, fleshy, with persistent calyx. The pyrene is constituted by endocarp and seeds. Germination is hypogeal, and seedling cryptocotyledonary. Results show that removing the endocarp with the unprecedented methodology used is a suitable method to overcome mechanical dormancy (with 25 and 30°C), showing potential of the method for applicability in several species.

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“…One of the characteristics of native species is the high genetic variability, which is remarkable in the morphology and size of fruits and seeds and is often associated with environmental factors, in addition to biotic and abiotic factors that directly influence the development of fruits and seeds, thus modifying their biometry [10,11]. In this context, research focused on the morphology of fruits and seeds provides information on their structures, as well as important data on the biological cycle of the species [12,13].…”

Section: Introductionmentioning

confidence: 99%

Biometry of Seeds of Jatropha mollissima (Pohl) Baill. and Cnidoscolus urens (L.) Arthur (Euphorbiaceae) from Different Matrices in the Semi-Arid Region of Brazil

Araújo,

Moura,

Almeida

et al. 2023

Braz. arch. biol. technol.

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This study aimed to evaluate the biometric characteristics of seeds of Jatropha mollissima (Pohl) Baill. and Cnidoscolus urens (L.) Arthur from different matrices in the semi-arid region of Brazil. For biometric evaluation, the length, width, and thickness dimensions and mass of 100 seeds of each species. The data were analysed by univariate statistics, corresponding to the position (mean, minimum and maximum values) and dispersion (standard deviation and coefficient of variation) measurements. In addition, histograms were constructed to analyse the frequency distribution pattern of biometric characteristics. J. mollissima seeds had an average length of 1.278 cm, width of 0.823 cm, thickness of 0.697 cm, and mass of 0.2220 g. The low standard error values indicated that the sampling accurately reflects the population. The frequency distribution analysis showed length between 1.240 and 1.321 cm, width between 0.787 and 0.886 cm, thickness intervals from 0.691 to 0.709 and from 0.653 to 0.671 cm, and mass of seeds concentrated between 0.1684 and 0.2477 g. For C. urens seeds, the registered biometric data were: average length of 0.789 cm, width of 0.238 cm, thickness of 0.405 cm, and mass of 0.0248 g. The sampling also accurately reflects the population as low standard error values were obtained. The frequency distribution analysis showed length between 0.768 and 0.835 cm, width between 0.234 and 0.251 cm, thickness from 0.408 and 0.423 cm, and seed mass ranging from 0.0215 to 0.0240 g. Therefore, the information provided contributes to the identification of species, and diagnosis of their genetic variability. HIGHLIGHTS• The seeds of J. mollissima showed a biometric pattern.• C. urens, there is a lack of works for mutual comparison.• The research provides data on biometric characteristics of the species.

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Effects of substrate and mechanical scarification on the germination of Syagrus oleracea (Arecaceae) seeds

Cited by 9 publications

References 0 publications

Fruit biometry and seed germination of Syagrus romanzoffiana (Cham.) Glassm

Fruit biometry and seed germination of Syagrus romanzoffiana (Cham.) Glassm

Morphology and germination of Aegiphila brachiata Vell.: potential species for ecological restoration in atlantic forest

Biometry of Seeds of Jatropha mollissima (Pohl) Baill. and Cnidoscolus urens (L.) Arthur (Euphorbiaceae) from Different Matrices in the Semi-Arid Region of Brazil

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