Reduction in the period for evaluation of the physiological quality of newly harvested black oat seeds

Grzybowski, Camila Ribeiro de Souza; Farinacio, Renato; Panobianco, Maristela

doi:10.1590/2317-1545v37n4149431

Cited by 3 publications

(3 citation statements)

References 8 publications

(5 reference statements)

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“…This described behavior of seeds is characteristic of some species soon after harvesting and includes black oats, due to the process of primary or innate dormancy that is genetically programmed into the mother plant as a function of environmental conditions. Overcoming dormancy can occur over time under conditions of low seed moisture content, culminating in the increase of the germination percentage in storage (Grzybowski et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Immediate and latent damages of drying temperature in the quality of black oat (Avena strigosa Schreb.) seeds

Scariot

Pasinato²,

Galon³

et al. 2020

Agron. Colomb.

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The objective of this research was to evaluate the immediate and latent drying temperature damages on the physical and physiological quality of black oat seeds. The seeds were dried in an oven with air circulation at temperatures of 30, 40 and 50ºC, in addition to the use of alternating temperatures (40-50ºC). After drying the seeds were stored under environmental conditions for 180 days, and physical and physiological analyses were performed every 45 days. It was observed that the physical quality of black oat seeds was reduced with an increase in the storage time, regardless of the drying temperature used. The physiological quality of black oat seeds increased throughout storage until dormancy was overcome, regardless of the drying temperature. Elevated drying temperatures cause immediate damages to the physical quality of black oat seeds, whereas physiological quality tends latently to suffer the negative influence of increasing the temperature of the drying air.

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Section: Resultsmentioning

confidence: 99%

Immediate and latent damages of drying temperature in the quality of black oat (Avena strigosa Schreb.) seeds

Scariot

Pasinato²,

Galon³

et al. 2020

Agron. Colomb.

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“…Lemes et al (2014), Carbonera (2016) e Mattioni et al (2014) verificaram que a temperatura de 20°C pode ser utilizada para a germinação (acima de 90%) de sementes de aveia branca. Grzybowski et al (2015) verificaram que o esfriamento inicial das sementes de aveia preta afeta positivamente na germinação (acima de 90%), utilizando rolo de papel. Resultado semelhante ao que foi encontrado no presente trabalho, em que a temperatura de 5°C atuou de forma benéfica na germinação.…”

Section: Resultsunclassified

Viabilidade das sementes de aveia em diferentes substratos e temperaturas

Hossel

Alegretti

et al. 2019

Revista Brasileira De Tecnologia Aplicada Nas Ciências Agrárias

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A aveia branca é gramínea anual de inverno muito utilizada na região sul do Brasil, tanto na forma de pastejo como na forma de grãos para alimentação animal. O presente trabalho teve por objetivo avaliar a germinação de sementes de aveia branca (A. sativa L.) em diferentes substratos e diferentes temperaturas. O mesmo foi realizado no laboratório de Fisiologia Vegetal da Universidade Tecnológica Federal do Paraná, Câmpus Dois Vizinhos. As sementes utilizadas nesse experimento foram obtidas no comércio local de Dois Vizinhos-PR. O experimento foi instalado com delineamento inteiramente casualizado, com fatorial 4 X 5 (tipo de substrato X temperatura) com 4 repetições, utilizando-se 100 sementes por unidade experimental. Onde posteriormente foram classificadas e separadas em quatro lotes e colocadas para germinar, os quais foram sobre papel, entre papel, areia e vermiculita, que estavam colocadas dentro de caixas gerbox. Após realizou-se a separação dos mesmos em cinco sub-lotes, sendo estes as condições de temperatura em que as sementes foram colocadas para a germinação, as quais foram de temperaturas de 5°C, 15°C, 25°C, 35°C, e alternado de 5°C para 25°C. Recomenda-se para os processos germinativos de sementes de aveia branca substrato entre papel ou sobre papel em temperatura de 25°C.

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“…In the evaluation, the percentage of normal seedlings, abnormal seedlings and dead seeds was determined (Brazil, 1992(Brazil, , 2009. Work done by Grzybowski et al (2015) showed that predrying may be carried out for five days. The tetrazolium test which determines the feasibility of seeds also followed the criteria established in the rules for seed testing.…”

Section: Methodsmentioning

confidence: 99%

Physical and physiological attributes of black oat seeds produced in southern Brazil

Carbonera¹,

Nunes²,

Lucio³

et al. 2017

Afr. J. Agric. Res.

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Black oat crop occupies the largest area during winter. It is important for animal production, crop rotation and dry matter production of approximately 3.8 million hectares in Rio Grande do Sul State. To ensure sowing, seeds are produced which must have high quality standards and must be evaluated by seed testing laboratories. Given this, the present study evaluated the physical and physiological quality of oat seeds analyzed by the Seed Analysis Laboratory of UNIJUI from 2006 to 2014. 2,910 samples were evaluated; 2,229 were evaluated with seed production process; 357 were evaluated with seed analysis of own use and 324 were evaluated with tetrazolium analysis. The samples obtained through seed production process were analyzed in terms of their physical and physiological aspects, while the own seed and tetrazolium test used were evaluated only in terms of their physiological attributes, following the methodology described in the Seed Analysis Rules. The data were analyzed through descriptive statistics for each variable studied per year, and the averages, maximum and minimum standard deviation and coefficient of variation were identified. The data were also evaluated based on their dispersion, and compared to weather occurrences and national standards, in order to estimate the percentages of samples approved. Seeds produced according to the National Seed system had high levels of physical and physiological quality from 2006 to 2010. However, between 2011 and 2014, 14.0 and 14.5% of the samples were above the standard levels for seeds of other cultivated species and harmful prohibited species respectively. The own used seeds showed greater variability and dispersion, with 18.1 and 31.7% samples below the standards for germination in the years 2006 to 2010 and 2011 to 2014, respectively, while the samples analyzed through the tetrazolium test showed approved levels of 19.4 and 12.5%, respectively.

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Reduction in the period for evaluation of the physiological quality of newly harvested black oat seeds

Cited by 3 publications

References 8 publications

Immediate and latent damages of drying temperature in the quality of black oat (Avena strigosa Schreb.) seeds

Immediate and latent damages of drying temperature in the quality of black oat (Avena strigosa Schreb.) seeds

Viabilidade das sementes de aveia em diferentes substratos e temperaturas

Physical and physiological attributes of black oat seeds produced in southern Brazil

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