Sensibilidade à dessecação e aoarmazenamento em sementes de Eugenia pyriformis Cambess. (uvaia)

Scalon, Silvana de Paula Quintão; Neves, Eliane Marques da Silva; Maseto, Tathiana Elisa; Pereira, Zefa Valdivina

doi:10.1590/s0100-29452012000100036

Cited by 37 publications

(40 citation statements)

References 15 publications

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“…The reduction in seedling length was also detected in H. speciosa Gomes seeds (SANTOS et al, 2010) and Eugenia pyriformis Camb. (uvaia) seeds (SCALON et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

“…Studies of desiccation tolerance in seeds are important for ex-situ conservation of germplasm of native fruit species from the Brazilian Savanna to indicate the efficient levels of water for seed storage, without causing damage to the physiological quality and further propagation of the species (SCALON et al, 2012). The main challenge for the ex-situ seed conservation of desiccationsensitive species is determining its behavior to desiccation, whether its sensitivity or storage is possible for only a short period of time (typically in the order of weeks to months) (DAWS et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Germination and dessication of Hancornia speciosa Gomes seeds

et al. 2016

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ABSTRACT:The aim of this work was describe the germination and evaluate the desiccation and reduction in desiccation sensitivity of Hancornia speciosa Gomes seeds. Initially, we evaluated the germination characteristics and morphophysiological aspects of seedlings. The seeds in the first experiment were subjected to fast desiccation (activated silica gel) and slow desiccation (laboratory conditions) until the water content reached 40%, 30%, 20%, and 15% ± 2%. To reduce the desiccation sensitivity, in the second experiment, the seeds were soaked in polyethylene glycol (PEG) at potentials of -0.1 and -0.3 MPa for 120 h, with or without abscisic acid (ABA) (10 -4 µM), and subsequently subjected to fast desiccation until a water content of 15% was reached, based on the results from the first experiment. The seed vigor in both experiments was evaluated by the primary root protrusion tests, percentage of normal seedlings, germination speed index, length and mass (shoot, underground, and total). Seedlings of H. speciosa feature a stem-like xylopodium structure. The seeds were tolerant to water reduction up to 15% by fast desiccation and 30% by slow desiccation. Moreover, priming was not efficient in reducing the desiccation sensitivity of H. speciosa seeds.

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“…The reduction in seedling length was also detected in H. speciosa Gomes seeds (SANTOS et al, 2010) and Eugenia pyriformis Camb. (uvaia) seeds (SCALON et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Germination and dessication of Hancornia speciosa Gomes seeds

et al. 2016

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“…It is prized for its fleshy and velvety fruits, the pulp of which is rich in antioxidants and vitamin C, thus contributing to its inclusion in diets (SILVA et al, 2014). Seed propagation is, however, difficult owing to the short natural longevity of the seeds, together with the recalcitrant behavioral characteristics of the species (SCALON et al, 2012), which instigated the research on other propagation methods.…”

Section: Introductionmentioning

confidence: 99%

Antioxidants in the control of microorganism contamination and phenol oxidation in Eugenia pyriformis

Assis¹,

Rodrigues²,

Pasqual³

et al. 2018

Biosci. J.

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“…Referido comportamento também foi observado para esta espécie por Delgado & Barbedo (2007) e também em outras espécies do gênero Eugenia, como E. involucrata DC. (Barbedo et al, 1998), E. brasiliensis (Kohoma et al, 2006) e E. pyriformis (Lamarca et al, 2011;Scalon et al, 2012 (Dousseau et al, 2011); no caso das sementes de Eugenia pyriformis (uvaia) com grau de umidade em torno de 14% não se constatou germinação (Andrade & Ferreira, 2000).…”

Section: Resultsunclassified

Secagem e armazenamento de sementes de Eugenia uniflora L.

Comin

Pereira

Maciel

et al. 2014

Agraria

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RESUMONeste trabalho objetivou-se avaliar a influência de diferentes períodos de secagem em estufa e armazenamento em geladeira, na qualidade fisiológica e sanitária de sementes de Eugenia uniflora L. No teste utilizaram-se dois lotes de sementes, coletados no município de Santa Maria -RS, em que o lote 1 foi submetido a secagem em estufa a 37 °C durante 0, 14, 24, 48 e 72 horas e o lote 2 permaneceu armazenado em sacos de polietileno na geladeira (10-11 °C) durante 0, 30, 60, 90 e 120 dias. Foram avaliados: o grau de umidade, porcentagem de germinação e sanidade das sementes após cada período de secagem e armazenamento. O grau de umidade das sementes diminuiu com o aumento dos tempos de secagem e armazenamento; consequentemente, o poder germinativo dos lotes foi comprometido. Períodos mais longos de secagem favoreceram a ocorrência dos fungos Rhizopus sp. e Penicillium sp. associados às sementes enquanto o armazenamento das sementes proliferou o gênero Aspergillus e controlou a incidência de Cladosporium sp. Palavras-chave: fungos, germinação, sementes florestais Drying and storage of Eugenia uniflora L. (cherry) seeds ABSTRACTThe objectives of this study were to evaluate influence of different periods of drying in an oven and storage in refrigerator of on the physiological and sanitary quality of Eugenia uniflora L. seeds. Two lots of seeds were collected in the municipality of Santa Maria -RS. The batch designated as 1 was dried in an oven for 0, 14, 24, 48 and 72 hours while the batch 2 was stored in the refrigerator (10-11 °C) for 0, 30, 60, 90 and 120 days. Moisture content, germination and sanitary conditions of seed were evaluated after each period of drying and storage. The moisture content of seeds decreased with increase in drying and storage period; hence the germination of the lots was compromised. Longer periods of drying favor the occurrence of fungi Rhizopus sp. and Penicillium sp. associated with seeds, while seed storage proliferated the genus Aspergillus and controlled the incidence of Cladosporium sp .

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Sensibilidade à dessecação e aoarmazenamento em sementes de Eugenia pyriformis Cambess. (uvaia)

Cited by 37 publications

References 15 publications

Germination and dessication of Hancornia speciosa Gomes seeds

Germination and dessication of Hancornia speciosa Gomes seeds

Antioxidants in the control of microorganism contamination and phenol oxidation in Eugenia pyriformis

Secagem e armazenamento de sementes de Eugenia uniflora L.

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