Superação de dormência e vigor em sementes de Fava-d’Anta (&lt;i&gt;Dimorphandra gardneriana&lt;/i&gt; Tulasne)

Ursulino, Marina Matias; Alves, Edna Ursulino; Araújo, Paulo Costa; Alves, Magnólia Martins; Ribeiro, Thiago de Souza; Silva, Rosemere dos Santos

doi:10.5902/1980509810460

Cited by 6 publications

(7 citation statements)

References 16 publications

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“…Similar results were reported by other authors such as Ursulino et al (2019), who observed that the seed coat breakdown followed by immersion in water for 6 hours is the most efficient method for overcoming the dormancy of Dimorphandra gardneriana seeds. In contrast, the results obtained differ from those reported by Rigamonte-Azevedo et al (2007), who after testing scarification associated with 24, 48, and 72 hours water immersion, do not recommend this type of pre-germination treatment for the species E. schomburgkii.…”

Section: Resultssupporting

confidence: 91%

“…The same behavior was observed for the stem diameter, whose mean value recorded for this treatment was also lower than the others. These results corroborate the information obtained for other leguminous such as Dimorphandra gardneriana (Ursulino et al, 2019), Caesalpinia pyramidalis (Alves et al, 2007) and Cassia fistula (Bezerra et al, 2014).…”

Section: Resultssupporting

confidence: 89%

“…However, shorter soaking times as demonstrated in this study (4 hours) may provide a satisfactory increase in E%. Araújo et al (2019) indicate that immersion in sulfuric acid between 12 to 13 minutes is efficient in overcoming the physical dormancy of E. schomburgkii. However, Alves et al (2008) emphasize that the use of this product requires an appropriate disposal site, besides the difficulty to use it on a large scale, due to the care taken during its handling and the cost, when compared to water treatments.…”

Section: Resultsmentioning

confidence: 91%

“…Over the last few years, several methods have been developed in the laboratory to overcome dormancy in E. schomburgkii seeds, such as manual scarification, pointing at the opposite side of the micropyle, immersion in sodium hydroxide and sulfuric acid (Souza and Varela, 1989;Garcia and Azevedo, 1999;Rigamonte-Azevedo et al, 2007;Araújo et al, 2019). However, the choice of the best method for overcoming the dormancy of seeds of forest species should be determined taking into account the practicality of application and the cost benefit of the method (Silva et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Methods to overcome dormancy of seeds of Enterolobium schomburgkii (Benth.) Benth.

Linhares

Vasconcelos

Alves

2020

Agrotec

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Enterolobium schomburgkii is an arboreal species, native to the Amazon that presents a wide neotropical distribution. The objective of the present study was to evaluate the effect of different methods to overcome dormancy in E. schomburgkii seeds. The experimental design was entirely randomized, with three treatments and four repetitions of 25 seeds. The methods were (T1) seed coat breakdown opposite the hilum; (T2); seed coat breakdown opposite the hilum + immersion in water for 4 hours and control (T3). The parameters were evaluated: height of the seedlings (H), stem diameter (D), percentage of the emergence of seedlings (E) and the emergence speed index (ESI). The parameters diameter, emergence, and ESI were strongly influenced by the method used to overcome dormancy. The highest values of H, D, E, and ESI were observed in the T2 treatment, due to the time of exposure to water, which provided the acceleration of the emergence of the seedlings. The dormancy of the seeds of E. schomburgkii is overcome with the shoot opposite to the hilum and can be accelerated with immersion in water for 4 hours.

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Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Methods to overcome dormancy of seeds of Enterolobium schomburgkii (Benth.) Benth.

Linhares

Vasconcelos

Alves

2020

Agrotec

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“…A escarificação das sementes com lixa de madeira (T5) após os períodos de zero (sem armazenamento) e 70 dias de armazenamento, possibilitou plântulas com maiores valores de massa seca da parte aérea (Tabela 10). Ursulino et al(2019) avaliando a massa seca da parte aérea de plântulas de Dimorphandra gardnerianado verificaram que a escarificação mecânica com lixa de madeira (n°120) também proporcionou os melhores resultados. De um modo geral, à medida que aumentou o tempo de armazenamento diminuiu o acúmulo de massa seca da parte aérea, quando se empregou os métodos de superação de dormência de imersão em soda cáustica por 30 e 60 min.…”

Section: Período De Armazenamentounclassified

Tratamentos pré-germinativos em sementes de Sesbania virgata cav. pers após o armazenamento

Moura

Silva

Alves³

et al. 2021

RSD

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Objetivou-se com o presente trabalho acompanhar o desempenho fisiológico de sementes de Sesbania virgata (Car. Pers) após diferentes condições e períodos de armazenamento, com posterior submissão à tratamentos de superação de dormência. As sementes foram armazenadas em condições não controladas e de geladeira, por períodos de 0; 35 e 70 dias. Foram empregados após cada período de armazenamento cinco tratamentos pré-germinativos de superação de dormência, ou seja, testemunha, imersão em ácido sulfúrico por 15 minutos, imersão em soda cáustica 20% por 30 e 60 minutos e escarificação com lixa de madeira n°100. Posteriormente, procedeu-se com as seguintes avaliações: teor de água das sementes, porcentagem, índice de velocidade e tempo médio tanto da germinação como da emergência, condutividade elétrica para avaliar a ruptura do tegumento, comprimento e massa seca da parte aérea e do sistema radicular. O delineamento experimental utilizado foi o inteiramente casualizado, adotando-se um esquema fatorial 2×3×5 (condições de armazenamento × períodos de armazenamento × tratamentos pré germinativos). A escarificação mecânica destacou-se na superação da dormência, a maior liberação de lixiviados foi um indicativo de maior absorção de água, o que resultou no desencadeamento do processo germinativo. O armazenamento em geladeira favoreceu as características referentes à germinação, enquanto o ambiente não controlado resultou nos melhores resultados para os parâmetros de emergência. O armazenamento por 70 dias foi o mais favorável para a conservação da qualidade das sementes de cambaí-amarelo. Desse modo sugere-se para futuros trabalhos a avaliação com períodos de armazenamento mais longos, visando conhecer até que ponto as sementes podem ficar armazenadas sem redução significativa da sua qualidade. Este trabalho mostra ao produtor de mudas que a escarificação com lixa consiste em um procedimento simples e eficaz a ser empregado na superação de dormência, bem como indica uma condição de ambiente satisfatória para a conservação das sementes de S. virgata.

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Quality of dwarf cashew tree seedlings as a result of methods for breaking dormancy, container volume and application of bovine biofertilizer

Irineu

Véras

Andrade

et al. 2019

Rev. Colomb. Cienc. Hortic.

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The dwaf cashew tree presents enormous economic relevance for the Brazilian northeast. When establishing orchards of this species, the most important phase is the formation of the seedlings. Therefore, studies aiming to improve growth aspects and seedling qualities are extremely relevant. In this sense, the present study aimed to evaluate the growth and quality of dwarf cashew tree seedlings as a result of methods for breaking dormancy, container volume and application of bovine biofertilizer. The experiment design was completely randomized, with a 2×2×5 factorial scheme and six replicates; the experimental unit consisted of five seedlings. The treatments involved two methods of breaking dormancy (scarification with sandpaper and immersion in water), two container volumes (1 and 2 kg) and five doses of bovine biofertilizer (0, 2.5, 5.0, 7.5 and 10 mL). The method for breaking dormancy with normal water for 24 hours was the most adequate for the formation of dwarf cashew tree seedlings. The doses of 7.5 and 10 mL of bovine biofertilizer provided higher growth and quality in the dwarf cashew tree seedlings. The volume of 2 kg of substrate was the most suitable volume for growing dwarf cashew trees.

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Superação de dormência e vigor em sementes de Fava-d’Anta (<i>Dimorphandra gardneriana</i> Tulasne)

Cited by 6 publications

References 16 publications

Methods to overcome dormancy of seeds of Enterolobium schomburgkii (Benth.) Benth.

Methods to overcome dormancy of seeds of Enterolobium schomburgkii (Benth.) Benth.

Tratamentos pré-germinativos em sementes de Sesbania virgata cav. pers após o armazenamento

Quality of dwarf cashew tree seedlings as a result of methods for breaking dormancy, container volume and application of bovine biofertilizer

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