Análise de imagens digitais na avaliação de plântulas de milho. / Digital images analysis in corn seedling evaluation.
AUTOR(ES)
Everton Felix Teixeira
DATA DE PUBLICAÇÃO
2005
RESUMO
The image analysis has high potential use in seed vigor determination. Associated to the seedlings growing test, this technique is fast, precise and makes possible the dimensional image analysis. The result is the total extension of each seedling quantifying the length of their constituent parts. With the purpose of studying the corn seed lots vigor through the seedlings growing test, using the digital images analysis, the corn seedlings (AG122 genotype) were taken from the germination chamber at the fourth day of development and ordered over a sheet, made with a transparent polyester film, on a scanner surface to the images capture. A routine was developed to process digital images of seedlings into the Scil-Image software. There was a computational procedure to measure the total length, with the usual sum of coleoptile to the main root length of seedling and also, not usually, to all root system. The seedlings were measured manually, seeking comparison with the method in study. The results showed that the digital technique makes possible association of the data obtained in processing to eventual vigor differences existing in corn seed lots, in a similar way to the other methods appointed to seed vigor evaluation by referred species.
ASSUNTO(S)
processamento de imagens vigor test semente images processing digital image seedling root system imagem digital teste de vigor corn sistema radicular plântula milho seed
