Relacionamento entre tamanho do nódulo e medições convencionais da nodulação - DOI: 10.4025/actasciagron.v29i1.65

José Valdemir Tenório da Costa; Mario de Andrade Lira Júnior; Rinaldo Luiz Caraciolo Ferreira; Newton Pereira Stamford; Marcela Campanharo; Clayton Albuquerque de Sousa

doi:10.4025/actasciagron.v29i1.65

Relationship between nodule size and conventional nodulation measurements - DOI: 10.4025/actasciagron.v29i1.65

Authors

José Valdemir Tenório da Costa UFRPE Author
Mario de Andrade Lira Júnior UFRPE Author
Rinaldo Luiz Caraciolo Ferreira UFRPE Author
Newton Pereira Stamford UFRPE Author
Marcela Campanharo UFRPE Author
Clayton Albuquerque de Sousa UFRPE Author

DOI:

https://doi.org/10.4025/actasciagron.v29i1.65

Keywords:

análise de imagens, rizóbio, fixação biológica de nitrogênio, FBN

Abstract

Relationship between nodule size and conventional nodulation measurements. A method was tested to allow the study over time of individual legume nodules. From seven days after emergence to full physiological maturity of cowpea plants weekly determinations of nodule number, size and dry matter, leaf area, plant height aerial part and root system dry masses and nitrogenase activity. Nodules were digitized at 100, 200 and 300 dots per inch resolutions, and each nodule length and diameter was measured with a digital pachymeter and on the digital images. Images of the root system of all plants were obtained weekly at 300 dpi on the larger sides of the pots. Destructive and non-destructive nodule size determinations were generally similar. Non-destructive measures of nodule size were valid predictors for measures such as nodule dry matter.

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Author Biography

Mario de Andrade Lira Júnior, UFRPE

Engenheiro Agrônomo formado pela Universidade Federal Rural de Pernambuco (1990), Mestre em Agronomia (Ciências do Solo) pela Universidade Federal Rural de Pernambuco (1994) e Doutor em Plant Science pela McGill University (2001). Atualmente está realizando treinamento pós-doutoral na Universidade Federal de Lavras. É professor da Universidade Federal Rural de Pernambuco a partir de 1993. Atualmente atua como docente no Programa de Pós-Graduação em Agronomia-Ciência do Solo, e como revisor ad-hoc nos periódicos Caatinga, Revista Brasileira de Ciência Agrária, Brazilian Journal of Microbiology e Revista Brasileira de Ciência do Solo. Tem experiência na área de Agronomia, com ênfase em Microbiologia e Bioquímica do Solo, atuando principalmente na fixação biológica do nitrogênio por leguminosas em associação com rizóbio. Currículo Lattes

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Published

2007-08-20

Issue

Vol. 29 No. 1 (2007)

Section

Crop Production

License

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I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal.

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

How to Cite

Costa, J. V. T. da, Lira Júnior, M. de A., Ferreira, R. L. C., Stamford, N. P., Campanharo, M., & Sousa, C. A. de. (2007). Relationship between nodule size and conventional nodulation measurements - DOI: 10.4025/actasciagron.v29i1.65. Acta Scientiarum. Agronomy, 29(1), 47-54. https://doi.org/10.4025/actasciagron.v29i1.65