EVALUATION OF SOYBEAN CULTIVARS AND LINES RESISTANCE TO Pratylenchus brachyurus

Authors

  • Dilson da Cunha Costa Embrapa Mandioca e Fruticultura
  • Silamar Ferraz UFV

Keywords:

Glycine max, root-lesion, nematode

Abstract

Pratylenchus brachyurus, a plant parasitic nematode which has wide distribution due to a broad range of hosts, causes damages to soybean all over the world. Chlorosis and dwarfing in soybean plants are very common symptoms associated with this nematode infestation. The present work had as objective to evaluate the resistance of soybean cultivars and lines to P. brachyurus. Seeds of all genotypes were treated with a mixture of alcohol, sodium hypochloride, water (1:2:7). Pre-germinated seedlings were inoculated with 450 nematodes and, after 50 days under greenhouse conditions, the plants were harvested, when nematode number per root system and reproduction factors were evaluated. All genotypes tested were found to be infested with the nematode. However, 18.52% of the genotypes showed high susceptibility, 45.68% were susceptible, while 34.57% showed slight resistance and 1.23% were moderate resistant to the attack of P. brachyurus.

KEY-WORDS: Glycine max; root-lesion; nematode.

Downloads

Download data is not yet available.

Downloads

Published

2007-12-19

How to Cite

COSTA, D. da C.; FERRAZ, S. EVALUATION OF SOYBEAN CULTIVARS AND LINES RESISTANCE TO Pratylenchus brachyurus. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 28, n. 2, p. 67–76, 2007. Disponível em: https://revistas.ufg.br/pat/article/view/2997. Acesso em: 26 dec. 2024.

Issue

v. 28, n. 2, Jul./Dec. 1998

Section

Research Article

License

Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.