Superação de dormência e temperaturas para germinação de sementes de Acacia caven (Mol. ) Mol. (espinilho)

Escobar, Taiane Acunha; Pedroso, Vanessa Marques; Bonow, Roselaine Neves; Schwengber, Eduardo Brum

doi:10.1590/s0101-31222010000200015

Cited by 10 publications

(16 citation statements)

References 18 publications

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“…Mol. propagules (Escobar et al, 2010). The emergency results (Table 3) had the same tendency of the germination values.…”

Section: Resultssupporting

confidence: 56%

“…Mol. (Escobar et al, 2010), where maximal germination results were reached at various temperatures (25, 30 and 20-30°C). According to Azeredo et al (2011), these results illustrate the ability of adaptation and distribution of these species to a range of habitats, granting best chances to support adverse environmental conditions.…”

Section: Resultsmentioning

confidence: 98%

“…Mol. (Escobar et al, 2010;Tapia et al, 2011), with germination rates at 30°C. In the same way, Apeiba tibourbou Aubl.…”

Section: Resultsmentioning

confidence: 99%

“…Smiderle et al (2005) found the best germination results for Acacia longifolia (Andrews) Willd through thermal scarification at 100°C for 1 min followed by germination at 25°C, while Rodrigues et al (2008) noticed that Acacia mangium Willd. seeds presented highest germination values after chemical scarification with H 2 SO 4 for 90 min; Escobar et al (2010) and Tapia et al (2013) reported highest values for Acacia caven (Mol.) Mol.…”

mentioning

confidence: 94%

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Temperature and pre-germinative treatments for overcoming Acacia farnesiana (L.) Willd. (Fabaceae) seeds dormancy

Paulo¹,

Edna²,

Antonio³

et al. 2016

Afr. J. Agric. Res.

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Acacia farnesiana L. is a species known for its uses in recovery of degraded pastures, animal feeding, medical and fungicide properties. However, it is one of the most problematic invasive species in agriculture, due to the little known dormancy aspects of its seeds that results in the propagation and dispersion to distinct areas and the establishment of the invasive plant. The knowledge on ecophysiological characteristics of invasive species seeds aiming at the dormancy process is important for the comprehension of aggressive regeneration unities, and allows the development of strategies against infestation of new areas and reduction of soil seed banks. The objective of this research was to assess how A. farnesiana seeds overcome dormancy using different temperatures and pre-germinative treatments. The study was conducted in Federal University of Paraiba, using seeds obtained from fruits of ten matrix trees in Paraiba State, Brazil. The completely randomized design was adopted, with treatments arranged in a 3 x 15 factorial scheme representing temperatures and pregerminative treatments with four replicates. Parameters related to germination percentage, germination and emergency index were assessed, with best results observed in seeds scarified with sandpaper 80 followed by imbibitions of water at environmental temperature (25-30°C) for 24 h.

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“…Mol. propagules (Escobar et al, 2010). The emergency results (Table 3) had the same tendency of the germination values.…”

Section: Resultssupporting

confidence: 56%

Section: Resultsmentioning

confidence: 98%

“…Mol. (Escobar et al, 2010;Tapia et al, 2011), with germination rates at 30°C. In the same way, Apeiba tibourbou Aubl.…”

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 94%

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Temperature and pre-germinative treatments for overcoming Acacia farnesiana (L.) Willd. (Fabaceae) seeds dormancy

Paulo¹,

Edna²,

Antonio³

et al. 2016

Afr. J. Agric. Res.

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“…ESCOBAR et al (2010) apresentam resultados semelhantes relacionadas à sementes de Acacia caven (Mol.) Mol., onde os tratamentos com lixa d'água nº 80 até o desgaste visível do tegumento no lado oposto à micrópila e corte de 1,0 mm, com o auxílio de um estilete, na região oposta à micrópila, não obtiveram sementes duras, o que comprova a eficácia dos mesmos na embebição das sementes.…”

Section: Resultsunclassified

SUPERAÇÃO DE DORMÊNCIA EM SEMENTES DE Tachigali myrmecophila (Ducke) Ducke

Pereira¹,

Araújo²,

Simões³

et al. 2015

Enciclopédia Biosfera

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RESUMOObjetivou-se avaliar diferentes métodos de superação de dormência de sementes para potencializar a propagação de Tachigali myrmecophila (Ducke) Ducke. Foram realizados cinco tratamentos: testemunha -fazendo-se apenas a assepsia das sementes por meio da imersão em hipoclorito de sódio (2%) por cinco minutos; escarificação mecânica -assepsia das sementes por meio da imersão em hipoclorito de sódio (2 %) por cinco minutos e abrasão da superfície da semente à lixa nº 80, no lado oposto à micrópila das sementes, para não danificar o embrião; imersão em ácido sulfúrico (98% p.a.) por 10 ou 20 minutos e imersão em água -assepsia das sementes por meio da imersão em hipoclorito de sódio (2 %) por 5 minutos e imersão em água por 24 horas. Empregou-se o delineamento inteiramente casualizado, sendo cinco tratamentos e quatro repetições. Cada parcela foi composta por 25 sementes. Os tratamentos de escarificação mecânica com lixa nº 80 e imersão em ácido sulfúrico por 20 minutos proporcionam maior vigor na emergência e crescimento de plântulas. Para a produção de mudas da espécie, recomenda-se a escarificação mecânica das sementes com lixa, pelo bom resultado de emergência e por dispensar a utilização do ácido sulfúrico. PALAVRAS-CHAVE: Escarificação; espécie florestal; emergência; plântulas. OVERCOMING DORMANCY IN SEEDS OF Tachigali myrmecophila (Ducke)Ducke ABSTRACT Aimed to evaluate different methods of overcoming seed dormancy to enhance the spread of Tachigali myrmecophila (Ducke) Ducke. Five treatments were performed: control -making themselves only asepsis of seeds by soaking in sodium hypochlorite (2%) for five minutes; chiseling -asepsis of seeds by soaking in sodium hypochlorite (2%) for five minutes and seed surface abrasion sandpaper No. 80 on the side opposite to the micropyle seeds, to avoid damage to the embryo; immersion in sulfuric acid (98% pa) for 10 or 20 minutes and immersion in water -asepsis of seeds by soaking in sodium hypochlorite (2%) for 5 minutes and immersion in water for 24

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Relationships between substrate and the mobilization of reserve with temperature during seed germination of Ormosia coarctata Jack.

et al. 2020

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Seed germination studies provide essential information for biodiversity conservation and ecological restoration programs. This work aimed to investigate the relationship between the substrates and the mobilization of reserves during germination of Ormosia coarctata seeds under different temperatures. Samples were collected every 48 h for up to 240 h for quantification of lipids, soluble sugars, starch, and soluble proteins. The optimum temperature range for germination was 25 to 35 °C. The highest germination percentages were obtained using sand or paper roll. Carbohydrate, lipid, and protein contents decreased during germination, regardless of temperature.

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Superação de dormência e temperaturas para germinação de sementes de Acacia caven (Mol. ) Mol. (espinilho)

Cited by 10 publications

References 18 publications

Temperature and pre-germinative treatments for overcoming Acacia farnesiana (L.) Willd. (Fabaceae) seeds dormancy

Temperature and pre-germinative treatments for overcoming Acacia farnesiana (L.) Willd. (Fabaceae) seeds dormancy

SUPERAÇÃO DE DORMÊNCIA EM SEMENTES DE Tachigali myrmecophila (Ducke) Ducke

Relationships between substrate and the mobilization of reserve with temperature during seed germination of Ormosia coarctata Jack.

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