Kinds, Abundance and Pathogenicity of Pythium Species Isolated from Maize Rhizosphere of Various Habitats in El-Minia Governorate, Egypt
Mycobiology
;
: 35-41, 2004.
Artigo
em Inglês
| WPRIM
| ID: wpr-729794
ABSTRACT
A total of 374 Pythium isolates were isolated and identified from the rhizosphere soils of maize plants grown in 100 different agricultural fields in nine provinces at El-Minia Governorate, Egypt. Five Pythium spp. of P. deliense, P. graminicola, P. irregulare, P. oligandrum and P. splendens were obtained P. deliense and P. oligandrum were predominant in all of the locations with 48.1% and 41.4% of total counts, respectively. P. graminicola, P. irregulare and P. splendens were not isolated in 4, 2 and 4 provinces out of 9 provinces with 5.3%, 3.5%, and 1.6% of isolation percentage from total counts, respectively. Number of Pythium isolates in each were 34, 31, 34, 33, 34, 96, 37, 37 and 38 out of 374, for locations of El-Edwa, Maghagha, Beni-Mazar, Matai, Samalout, El-Minia city, Abou-Querquas, Mallawi and Der Mawas, respectively. Pre- and post-emergence pathogenicity tests indicated that only P. deliense was highly pathogenic to germinating grains and seedlings of maize whereas P. oligandrum was non-pathogenic.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Pythium
/
Solo
/
Virulência
/
Grão Comestível
/
Ecossistema
/
Zea mays
/
Plântula
/
Egito
/
Rizosfera
País/Região como assunto:
África
Idioma:
Inglês
Revista:
Mycobiology
Ano de publicação:
2004
Tipo de documento:
Artigo
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