Avaliação de danos por umidade, em sementes de soja, utilizando a técnica da análise de imagens

Pinto, Taís Leite Ferreira; Cícero, Silvio Moure; Forti, Victor Augusto

doi:10.1590/s0101-31222007000300004

Cited by 25 publications

(28 citation statements)

References 5 publications

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“…In studies carried out with analysis of X-rays in soybean (Pinto et al, 2007) and common bean (Forti et al, 2008) seeds, it was also possible to view the seed structure with water content greater than 9%. It is important to note that each species has its own characteristics of density and chemical composition, factors that significantly affect visualization of the X-rayed parts of the seeds.…”

Section: Resultsmentioning

confidence: 99%

Radiographic analysis to assess the seed structure of Crotalaria juncea L.

Arruda¹,

Cícero²,

Gomes-Júnior³

2016

J. Seed Sci.

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-The X-ray test is a simple, fast, non-destructive, and highly precise test that enables detailed examination of internal seed morphology and identification of seed damage and its location and type. The objective of the present study was to evaluate the efficiency of the X-ray test and the relationship between the structure of Crotalaria juncea seeds and germination. Six lots of Crotalaria juncea seeds of the IAC-KR1 cultivar were subjected to X-ray and germination tests. Normal and abnormal seedlings and dead seeds were photographed and analyzed together with the X-ray images of the seeds. Results showed that analysis of X-ray images is effective in identifying mechanical damage, stink bug damage, and deteriorated tissues in Crotalaria juncea seeds and is able to establish an association between their occurrence and germination.Index terms: image analysis, germination, internal morphology.Análise radiográfica para avaliação da estrutura de sementes de Crotalaria juncea L.RESUMO -O teste de raios X é um teste rápido, simples, não destrutivo e de alta precisão, que possibilita examinar com detalhes, a morfologia interna da semente, identificar áreas danificadas, sua localização e tipos de danos. O objetivo na presente pesquisa foi avaliar a eficiência do teste de raios X e relacionar a estrutura de sementes de Crotalaria juncea com a germinação. Foram utilizados seis lotes de sementes de Crotalaria juncea, cultivar IAC-KR1. As sementes foram submetidas aos testes de raios X e germinação. As plântulas normais, anormais e sementes mortas foram fotografadas e analisadas paralelamente às imagens radiográficas das sementes. Verificou-se que análise de imagens radiográficas possibilita a identificação de danos mecânicos, danos por percevejos e tecidos deteriorados em sementes de Crotalaria juncea, com efeitos negativos à germinação.Termos para indexação: análise de imagens, germinação, morfologia interna.

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Section: Resultsmentioning

confidence: 99%

Radiographic analysis to assess the seed structure of Crotalaria juncea L.

Arruda¹,

Cícero²,

Gomes-Júnior³

2016

J. Seed Sci.

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“…This technique also detects damage from humidity (Pinto et al, 2007) and mechanical damage to soybean seeds (Obando-Flor, 2003) and corn (Cicero et al, 1998) and also damage by stinkbugs in common bean seeds (Forti et al, 2008).…”

Section: Palavrasmentioning

confidence: 99%

Use of X-ray to evaluate damage caused by weevils in cowpea seeds

et al. 2010

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In Brazil, the cowpea [Vigna unguiculata (L.) Walp], is important in the Northeast Region, where it is typically grown on family farms. The importance of the damage caused to the seed quality of this species by stored pests has been described in various studies. Using X-ray, it is possible to see the internal seed structures and identify possible changes and damage. The objective of this study was to identify the damage caused by the weevil [Callosobruchus maculatus (Fabr.)] by analyzing X-ray and evaluate its relationship to the physiological quality of the cowpea seed. Three cultivars were used (IPA-206, BRS-Pajeu and BRS-Potengi) and two lines (L 281.005 and L ESP 10). The samples were exposed to X-ray and germination test to determine the cause-effect relationship between weevil damage and seed germination. X-ray images were evaluated to determine damage severity and location in the seed. Seed damage classified as severe, located in the embryonic axis or in the cotyledons, resulted in abnormal seedlings or dead seeds. The X-ray test, therefore, is efficient for evaluating weevil damage in cowpea seeds and the damage caused to be associated with any resulting adverse germination effects.

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“…Para a obtenção da radiografia, a placa de acrílico com as sementes, foi colocada diretamente sobre um filme de raios X ("Kodak MIN-R EV 2000", 18x24 cm), a 57 cm da fonte emissora de raios X. As radiografias foram feitas por um equipamento "FAXITRON X-Ray", modelo MX-20, com intensidade de 25 kV e tempo de exposição de 40 segundos (PINTO; FORTI, 2007).…”

Section: Teste De Raios Xunclassified

“…Alguns estudos têm destacado a deterioração por "umidade" como sendo um sério problema durante a produção de sementes de soja (ARANGO et al, 2006, FRANÇA NETO;HENNING, 1984, PINTO, CICERO, FORTI, 2007, mas nenhum deles abordou o aspecto relativo á provável evolução do referido dano durante o armazenamento.…”

Section: Introductionunclassified

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Avaliação da evolução de danos por "umidade" durante o armazenamento em sementes de soja, utilizando a técnica de análise de imagens

Forti¹

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Avaliação de danos por umidade, em sementes de soja, utilizando a técnica da análise de imagens

Cited by 25 publications

References 5 publications

Radiographic analysis to assess the seed structure of Crotalaria juncea L.

Radiographic analysis to assess the seed structure of Crotalaria juncea L.

Use of X-ray to evaluate damage caused by weevils in cowpea seeds

Avaliação da evolução de danos por "umidade" durante o armazenamento em sementes de soja, utilizando a técnica de análise de imagens

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