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HELMINTHOSPORIOSE MAIS [1 record]

Record 1 2007-09-24

English

Subject field(s)
  • Plant Diseases
CONT

In 1970, a corn blight devastated more than 15 percent of the North American corn crop. The corn was particularly susceptible to the blight because over 70% of the corn being grown in the US came from the same parent lines.

CONT

[...] The southern corn blight caused by Helminthosporium maydis, Race T, which severely attacked all maize hybrids with cytoplasmic male-sterile T cytoplasm, demonstrated the vulnerability of a hybrid seed production industry based on a single source of male-sterile cytoplasm.

French

Domaine(s)
  • Maladies des plantes
CONT

[...] En 1970, une épidémie d'helminthosporiose du maïs (Helminthosporium maydis Nisik. and Miyake) sévit dans toute la Corn Belt américaine. Au même moment, au moins 80 % du maïs cultivé aux États-Unis était sensible à l'helminthosporiose parce que ce maïs contenait un cytoplasme mâle-stérile du « type Texas » [...]

Spanish

Campo(s) temático(s)
  • Enfermedades de las plantas
CONT

Helmintosporiosis del maíz. Presencia de pequeñas manchas pardo negruzcas sobre las hojas, con forma oval o alargada y con un halo clorótico externo.El causante es Helminthosporium maydis.

CONT

Helminthosporium maydis produce una enfermedad foliar del maíz conocida como helmintosporiosis o tizón foliar. El hongo tiene una raza T [...] Dicha raza solo ataca a las variedades de maíz que tienen citoplasma androestéril, la resistencia al hongo y a la toxina se hereda por vía materna.

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