Image analysis using X-ray to evaluate seed quality of &lt;i&gt;Anadenanthera peregrina&lt;/i&gt; (L) Speg

Pinheiro, Daniel Teixeira; Medeiros, André Dantas de; Soares, Tássia Fernanda Santos Neri; Capobiango, Nayara Pereira; Dias, Denise Cunha Fernandes dos Santos

doi:10.5902/1980509863239

Cited by 3 publications

(1 citation statement)

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“…This information is confirmed in seeds of several species, such as tomato (Borges et al, 2019), pepper (Medeiros et al, 2020b. ), soybean (Pinheiro et al, 2021), jatropha (Medeiros et al, 2020c), Anadenenthera peregrina (Pinheiro et al, 2022) and others.…”

Section: Resultsmentioning

confidence: 99%

Osmopriming with selenium: physical and physiological quality of tomato seeds in response to water deficit

et al. 2023

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Tomato is a crop sensitive to water deficit and the responses of seeds to germination under these conditions involve biochemical, physiological, and molecular processes. The aim of this study was to evaluate the physical, physiological, and biochemical changes in tomato seeds osmoprimed with selenium (Se) and subjected to water deficit during germination. Tomato seeds of the LA 4050 and LA 3475 accessions were osmoprimed with PEG 6000 solution (-1.0 MPa) plus Na2SeO4 (12.5 μM) or only with PEG 6000 solution for 24 h or unprimed. The seeds from the different treatments were subjected to water deficit (-0.3 MPa) or to control (0 MPa). Image analyses were performed (X-ray), physiological variables were obtained by the germination test and activities of SOD, CAT and POX enzymes were determined. Osmopriming, especially with PEG, provided the seeds of both accessions with higher densities and gray mean when compared to unprimed ones. Seeds under water deficit showed lower physiological performance and lower enzymatic activity. Se did not induce seed resistance to water deficit. Osmopriming with PEG 6000 at -1.0 MPa is an efficient technique for improving the physiological quality of seeds of tomato accessions susceptible and tolerant to water deficit. Moreover, the antioxidant enzyme CAT proved to be an indicator of oxidative stress tolerance in tomato seedlings under water deficit.

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Section: Resultsmentioning

confidence: 99%

Osmopriming with selenium: physical and physiological quality of tomato seeds in response to water deficit

et al. 2023

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Use of the X-ray technique to evaluate the internal morphology of seeds of green manure species

Zacharias,

Cicero,

Gomes-Junior

et al. 2024

J. Seed Sci.

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Image analysis through X-ray technique has been receiving great attention due to its importance in identifying internal damage in seeds quickly and accurately, in addition to being a non-destructive method. The aim of this study was to assess the use of X-rays to evaluate the internal morphology of seeds of green manure species. Seeds of Lupinus albus L., Cajanus cajan (L.) Millsp., Canavalia ensiformis (L.) DC. and Stylosanthes spp. were radiographed. Two hundred seeds were studied for each species, and intact seeds, seeds with mechanical damage, damage caused by insects and deteriorated tissues were recorded, considering the severity and location of the damage. The same seeds were subjected to a germination test. It was concluded that image analysis using X-ray technique was effective in detecting internal damage in seeds of some green manure species and it has relationship with negative aspects in germination.

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Morfologia interna e externa de diásporos de <i>Tectona grandis</i> L. e sua relação com a qualidade de sementes

Oliveira,

Almeida,

Reis

2023

Ciênc. Florest.

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Tendo em vista a importância da produção de Tectona grandis Linn F. no estado de Mato Grosso, é necessário estabelecer cultivos com mudas de excelente qualidade e a seleção de diásporos pode favorecer seu vigor, proporcionando a produção de mudas de maior padrão. O objetivo da pesquisa foi indicar o estágio de maturação ideal dos diásporos de teca por meio da análise de imagens, que garanta a qualidade de sementes e produção de mudas. Diásporos foram coletados nos anos de 2016 e 2017 aos 90, 120, 150 e 180 dias após a antese e analisados quanto à presença de sementes por fruto em equipamento de raios X para compor os tratamentos. Após a seleção, foram analisadas características de cor, área e diâmetro e realizados testes de peso de frutos, germinação e emergência. Os diásporos durante o processo de maturação possuíam maior peso e quantidade de sementes. O aumento da porcentagem da cor amarela e preta foi indicativo da maturação dos diásporos coletados em 2017 e a redução da porcentagem da cor cinza escuro para o ano de 2016. A área e diâmetro dos frutos foram maiores naqueles que continham quatro sementes e a qualidade dos diásporos avaliados, pela germinação, primeira contagem de germinação, estande inicial e emergência, foi superior no ano de 2017, com diásporos contendo 2 e 3 sementes. A maturação dos diásporos de teca são dependentes do ano de coleta e com melhor qualidade quando coletados aos 120 e 150 dias após a antese.

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Image analysis using X-ray to evaluate seed quality of <i>Anadenanthera peregrina</i> (L) Speg

Cited by 3 publications

References 0 publications

Osmopriming with selenium: physical and physiological quality of tomato seeds in response to water deficit

Osmopriming with selenium: physical and physiological quality of tomato seeds in response to water deficit

Use of the X-ray technique to evaluate the internal morphology of seeds of green manure species

Morfologia interna e externa de diásporos de <i>Tectona grandis</i> L. e sua relação com a qualidade de sementes

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