Superação de dormência de sementes de Piptadenia moniliformis Benth

Azerêdo, Gilvaneide Alves de; Paula, Rinaldo César de; Valeri, Sérgio Valiengo; Alves, Pedro Luís da Costa Aguiar

doi:10.1590/s0101-31222010000200006

Cited by 39 publications

(39 citation statements)

References 20 publications

(5 reference statements)

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“…In studies of Caesalpinia ferrea [23], found higher in treatments underwent emergency emerges, when compared to those submitted to immersion in hot water and seeds that have not undergone pre-germination treatments. [24] found that treatment with immersion in water at 100˚C and sulfuric acid for periods of 10 and 15 min showed higher germination percentage in seeds Piptadenia moniliformis; otherwise, [25] in studies with the same species, found higher percentages of germination in treatments subjected to immersion in sulfuric acid for 20, 25 and 30 min. [26] found an increase in the percentage of germination of seeds immersed in sulfuric acid for up to 15 min, from that time, the germination percentage begins to decrease, the fact that, according to the authors, denotes the onset of damage seed due to an excessively long period of exposure to sulfuric acid.…”

Section: Resultsmentioning

confidence: 99%

Methods for Breaking Dormancy of Seeds of Tropical Forage Legumes

Morais¹,

Almeida²,

Deminicis³

et al. 2014

AJPS

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The aim of this study was to evaluate methods for breaking dormancy of seeds Neonotonia wightii (perennial soybean), Macrotiloma axilare (archer), Pueraria phaseoloides (tropical kudzu), Calopogonium mucunoides (calopo), which were subjected to the following treatments for physical breaks and physiological dormancy: 1) control; 2) scarification with sandpaper; 3) immersion in H2SO4 98% for five minutes and subsequent washing in water; 4) preheating at 60˚C for 150 minutes in an air circulating oven; 5) 0.2% KNO3; and 6) gibberellic acid (GA3 0.5%). The results showed that using H2SO4 to break seed dormancy archer and perennial soybean and calopo scarification with sandpaper were the most recommended treatments. Tropical Kudzu presented physiological response to treatments with the use of gibberellic acid and physical treatment using immersion H2SO4. Thus, it is necessary to use techniques to make the breaking dormancy of seeds of legumes, resulting in an increase in the rate of seed germination and rapid deployment of the legume.

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Section: Resultsmentioning

confidence: 99%

Methods for Breaking Dormancy of Seeds of Tropical Forage Legumes

Morais¹,

Almeida²,

Deminicis³

et al. 2014

AJPS

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“…Antes da condução do teste, as sementes foram escarificadas com ácido sulfúrico concentrado (96% p.a.) durante 30 minutos (Azerêdo et al, 2010), lavadas em água corrente por cinco minutos e mantidas sobre folhas de papel toalha por três dias para secagem e uniformização do teor de água.…”

Section: Methodsunclassified

Viabilidade de sementes de Piptadenia moniliformis Benth. pelo teste de tetrazólio

Azerêdo

Paula

Valeri

2011

Rev. bras. sementes

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Termos para indexação: espécie florestal, germinação, testes rápidos. DETERMINING THE VIABILITY OF Piptadenia moniliformis Benth SEEDS WITH THE TETRAZOLIUM TESTABSTRACT -Piptadenia moniliformis Benth. is a tree species which is important for beekeeping, as well as being recommended for soil restoration, reforestation, wood production for small civil construction projects, and cattle and sheep forage. Information on how to evaluate seed physiological quality is still scarce and in this was the study aimed to adapt the procedures of the tetrazolium test to assess the viability of P. moniliformis seeds. Four seed lots were scarified in sulphuric acid for 30 min, and soaked between paper towels at 25 °C for 24 hours. The seed coat was then removed and the naked seeds immersed in tetrazolium solutions with concentrations of 0.05, 0.075 and 0.1% for 2, 3, and 4 hours, at 35 ºC in the dark. Each treatment consisted of four replications of 25 seeds. The embryos were classified according to viability based on the staining patterns. The previous soaking of the seeds for 24 hours at 25 ºC between paper towels, followed by the removal of the seed coat and staining of the naked seeds for 4 hours in a 0.075% tetrazolium solution at 35 ºC, was the most efficient method for evaluating the viability of P. moniliformis Benth seeds.

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“…No caso de algumas espécies da Caatinga, as sementes apresentam dormência, um mecanismo que permite a germinação apenas quando a condição ambiental propicia seu estabelecimento e sobrevivência; esta característica se torna vantajosa para a perpetuação da espécie e é indesejável para os produtores que necessitam de uma rápida germinação (Azeredo et al, 2010).…”

Section: Introductionunclassified

“…Para que haja superação da dormência, vários processos podem ser adotados, dentre os quais podem ser citados: escarificação química (Pacheco et al, 2007;Azeredo et al, 2010;Pelazza, Segato & Romanato, 2011); escarificação mecânica com material abrasivo (Guedes et al, 2013), seccionamento ou remoção do tegumento (Pacheco et al, 2007); tratamentos térmicos (Pelazza, Segato & Romanato, 2011;Farias et al, 2013) e estratificação (Peche et al, 2016). Estes métodos foram utilizados por vários autores para espécies nativas, e podem apresentar resultados distintos em função da época do ano, da espécie analisada, dentre outros.…”

Section: Introductionunclassified

Tratamentos pré-germinativos em sementes de espécies da Caatinga

Siqueira

Barros

Araújo

et al. 2017

J. Env. Anal. Progr.

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A B S T R A C TSome species of the Caatinga present seeds with dormancy, a mechanism that allows germination when the environmental conditions permit its establishment and survival; this feature is advantageous for the perpetuation and undesirable for producers that need a fast production of these plants. The study aimed to evaluate the efficiency of the application of pre-germination treatments in Angico (Anadenanthera colubrina) (Vell.) Brenan, Jurema-branca (Piptadenia stipulacea Benth.) Ducke and Mulungu (Erythrina velutina Willd.). Two independent experiments were carried out at the Serra Talhada Academic Unit using Angico, Jurema-branca and Mulungu seeds, arranged in a completely randomized design, with four replicates and 15 seeds. The seeds were submitted to pre-germination treatments: T1-control, T2-mechanical scarification on the opposite end of the thread with wood sandpaper, T3-mechanical scarification on the opposite end of the thread with wood sandpaper + immersion in water at room temperature for 24 hours and T4-heat treatment with Immersion in water at 80°C for 2 minutes. The parameters evaluated the efficiency: germination percentage and rate of emergence (IVE), biometric data (30 days after sowing), as seedling height, the number of leaves and stem diameter. The seeds of Jurema-branca (P. stipulacea) and Mulungu (E. velutina), submitted to the pre-germinative treatments T2 and T3, showed better germinative performance, reflected in the growth of the seedling. The Angico (A. colubrina) was not sensitive to the application of the treatments, and its germination was nullified for the T3 treatment application. In all cases, variations of the parameters were observed because of the atmospheric conditions.

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Superação de dormência de sementes de Piptadenia moniliformis Benth

Cited by 39 publications

References 20 publications

Methods for Breaking Dormancy of Seeds of Tropical Forage Legumes

Methods for Breaking Dormancy of Seeds of Tropical Forage Legumes

Viabilidade de sementes de Piptadenia moniliformis Benth. pelo teste de tetrazólio

Tratamentos pré-germinativos em sementes de espécies da Caatinga

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