Reação de progênies de pimentão Ã  infecção por Meloidogyne incógnita, raças 1 e 3

Joelson Andre de Freitas; Sebastião Márcio de Azevedo; Wilson Roberto Maluf; Luiz Antônio Augusto Gomes; José Antonio Ribeiro da Silva

doi:10.4025/actasciagron.v22i0.2822

Response of sweet pepper progenies to Meloidogyne incognita races 1 and 3

Authors

Joelson Andre de Freitas EPAMIG Author
Sebastião Márcio de Azevedo UFLA Author
Wilson Roberto Maluf UFLA Author
Luiz Antônio Augusto Gomes HortiAgro Sememente - Ijaci-MG Author
José Antonio Ribeiro da Silva UFLA Author

DOI:

https://doi.org/10.4025/actasciagron.v22i0.2822

Keywords:

Capsicum annuum, resistência genética, nematóides

Abstract

This study was carried out to screen sweet pepper genotypes both resistant and homozygous to races 1 and 3 of Meloidogyne incognita; as well as to establish a criterion for characterization of resistant plants. The genotypes evaluated were: PIX-021E0818, PIX-021E0824, PIX-021E1232, PIX-021E1235, PIX-021E1540, PIX-021E1542, PIX-022E23 and PIX-023D09 (with Me1 or Me3 alleles to M. incognita resistance) and Linha 004, Agronômico-8, Ikeda and Magda (susceptible to nematodes) in two experiments, with one race each in a completely randomized design with 4 replicates and 16 plants per plot. Inoculation with nematodes was made at 30 eggs/cm³ of substrate proportion and the evaluation for number of root knots and egg masses, as well as egg masses index was performed 60 days after the inoculation. The resistant plant percentage was evaluated and no genotype showed complete homozygosity to Me1 or Me3 alleles. The genotypes PIX-021E1235, PIX-021E0818, PIX-022E23 and PIX-023D09 showed a high resistance to M. incognita races 1 and 3. The best criterion for characterization of resistant plants was number of egg masses

Downloads

Download data is not yet available.

Author Biography

Joelson Andre de Freitas, EPAMIG

possui graduação em Engenharia Agronômica pela Universidade Federal de Lavras (1994) , mestrado em Agronomia (Genética e Melhoramento de Plantas) pela Universidade Federal de Lavras (1996) e doutorado em Agronomia (Genética e Melhoramento de Plantas) pela Universidade Federal de Lavras (1999) . Atualmente é Coordenador de Melhoramento de Hortalicas da Sakata Seed Sudamerica Ltda Currículo Lattes

Downloads

PDF (Portuguese)

Published

2008-05-08

Issue

Vol. 22 (2000)

Section

Agronomy

License

DECLARATION OF ORIGINALITY AND COPYRIGHTS

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

Response of sweet pepper progenies to Meloidogyne incognita races 1 and 3. (2008). Acta Scientiarum. Agronomy, 22, 925-930. https://doi.org/10.4025/actasciagron.v22i0.2822