Mastigação simulada e digestão ácido-enzimática de sementes de leguminosas forrageiras tropicais

Deminicis, Bruno Borges; Vieira, Henrique Duarte; Almeida, João Carlos de Carvalho; Vásquez, Hernán; Araújo, S.A.C.; Jardim, Júlia Gazzoni; Castagnara, Deise Dalazen; Pádua, F.T.; Neto, Alberto Chambela; Lima, E.S.

doi:10.4321/s0004-05922012000300007

Cited by 4 publications

(8 citation statements)

References 7 publications

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“…The results of this study are in agreement with those reported by Deminicis et al (2006) which showed higher SGI values for eight tropical forage legume seeds submitted to scarification with sandpaper and the use of H 2 SO 4 . Lima et al (2013) evaluated different methods of scarification (immersion in water, hot water immersion, scarification with sandpaper and H 2 SO 4, and combinations of these methods) in Delonix regia seeds, and found a higher speed of emergence index in the treatment with scarification by sandpaper, when compared to other treatments.…”

Section: Resultssupporting

confidence: 83%

“…Java) germination percentage, with scarification, by removing the seed tegument. Literature describes out the recommendation of the use of scarification with sandpaper to make the dormancy break of seeds of forage legumes: Calopogonium mucunoides , Clitorea ternatea (Deminicis et al, 2006), Neonotonia wightii (Deminicis et al, 2012) Stylosanthes macrocephala and Stylosanthes capitata (Carmona et al, 1986). The use of H 2 SO 4 was indicated for Mimosa caesalpiniaefolia (Bruno et al, 2001) and Piptadenia viridiflora (Santos et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

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Germination and vigor of Macrotyloma axillare cv Java seeds under different methods for overcoming dormancy

Morais¹,

Lopes²,

Almeida³

et al. 2017

Afr. J. Agric. Res.

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Section: Resultssupporting

confidence: 83%

Section: Resultsmentioning

confidence: 99%

Germination and vigor of Macrotyloma axillare cv Java seeds under different methods for overcoming dormancy

Morais¹,

Lopes²,

Almeida³

et al. 2017

Afr. J. Agric. Res.

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“…Reference [1] submitted Cunhã, Stylosanthes, Macrotiloma and Perennial Soybean seeds to the technique of the in vitro acid-enzymatic digestion and observed that Cunhã, Macrotiloma and Perennial Soybean species presented small germination addition as the permanence time of the seeds in the hydrochloric acid + pepsin increased, contrary to Stylosanthes seeds, which had a reduced germination percentage, as a result of the increase in the dead seed percentage that the authors observed in the germination test.…”

Section: Resultsmentioning

confidence: 99%

“…The adoption of Fabacceae species in pastures in Brazil is still not very common, but there is an increasing interest for the practice by private initiatives, although. One of the big handicaps found is the phase of establishment of the plants in the field [1].…”

Section: Introductionmentioning

confidence: 99%

Germination and Vigor of Fodder Fabacceae Seeds Submitted to in Vitro and in Situ Incubation

Lima¹,

Vieira²,

Silva³

et al. 2015

AJPS

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The current study was developed with the purpose to evaluate the germination and the vigor of Kudzu (Pueraria phaseoloides), Leucaena (Leucaena leucocephala) and Calopogônio seeds (Calopogonium mucunoides) submitted to 0, 6, 12, 24, 48, 72 and 96 hours of testing to natural (in situ incubation) and simulated conditions (in vitro incubation) from the ruminal environment of bovines. For each period of in situ and in vitro incubation, in each kind of seed, the percentage of normal plants was evaluated, as well as abnormal plants, hard seeds, soaked seeds and dead seeds, besides the index of germination speed (IGS). The results were submitted to the Duncan test at a 5% probability. Higher percentages of normal plants were verified in the Kudzu and in the Leucaena kinds, when the seeds were submitted to in situ incubation, as well as the IGS for the three forage species. The Calopogônio seeds did not turn out to be susceptible of use in the in situ and in vitro incubations. The in vitro incubation revealed to be more harmful to the seeds of the three species used.

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“…Entretanto, Carmona et al (1986) sugerem que a escarificação de sementes de estilo-santes (S. macrocephala e S. capitata) com lixa, até a perda de brilho do tegumento, seja utilizada para esse fim. Deminicis et al (2006) aconselham que este tratamento seja utilizado para a superação da dormência de sementes de cunhã, macrotiloma e soja perene, pois apresenta melhores resultados para porcentagem média de germinação e para índice médio de velocidade de emergência.…”

Section: Mastigação Simuladaunclassified

Mastigação simulada e digestão ácido-enzimática de sementes de leguminosas forrageiras tropicais#

et al. 2011

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Este trabalho teve por objetivo verificar o efeito da mastigação simulada em laboratório sobre a sobrevivência de sementes de quatro leguminosas forrageiras tropicais submetidas a diferentes períodos de digestão ácido-enzimática in vitro (cunha, Clitorea ternatea; estilosantes, Stylosanthes capitata/S. macrocephala "Campo Grande"; macrotiloma, Macrotyloma axillare e soja perene, Neonotonia wightii). Foram conduzidos três ensaios: o primeiro, para observar o percentual de sementes destruídas pela mastigação; o segundo, para comparar o comportamento germinativo das sementes após mastigação, escarificação com lixa, mastigação com posterior escarificação com lixa e sementes integras (controle). No terceiro ensaio as sementes foram incubadas a 39°C com ácido clorídrico mais pepsina por: 0, 2, 4, 8, 12 e 24 horas. As percentagens de sementes não destruídas na mastigação (91,5 de macrotiloma; 88,0 de soja perene; 82,1 de cunhã e 81,1 de estilosantes), associadas aos efeitos benéficos da escarificação (verificados pela porcentagem de germinação, 64,7; 60,0; 92,0 e 87,3%), e aos efeitos do tempo de digestão ácida- enzimatica (75% maior quando permanecem 24 horas em HCl + pepsina) permitem observar que as sementes de leguminosas, por possuírem tegumentos duros e impermeáveis, quando submetidas à mastigação e à digestão ácido-enzimática, ainda tem um elevado potencial de resistência e, portanto, susceptível de passar intacta pelo aparelho digestivo dos bovinos, sendo capazes de germinar quando defecadas nas pastagens. Contudo, o estilosantes não deve ser inserido na alimentação de bovinos com este fim, pois não resiste à digestão ácido-enzimática.

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Mastigação simulada e digestão ácido-enzimática de sementes de leguminosas forrageiras tropicais

Cited by 4 publications

References 7 publications

Germination and vigor of Macrotyloma axillare cv Java seeds under different methods for overcoming dormancy

Germination and vigor of Macrotyloma axillare cv Java seeds under different methods for overcoming dormancy

Germination and Vigor of Fodder Fabacceae Seeds Submitted to in Vitro and in Situ Incubation

Mastigação simulada e digestão ácido-enzimática de sementes de leguminosas forrageiras tropicais#

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