black stem

Plant Pathol.
a disease of plants, characterized by blackened stems and defoliation, caused by any of several fungi, as Ascochyta imperfecta or Mycosphaerella lethalis.

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Universalium. 2010.

Look at other dictionaries:

  • black|stem — «BLAK STEHM», noun. any one of various fungous diseases attacking the stems of plants and causing them to turn dark …   Useful english dictionary

  • black stem — noun : any of various diseases of plants characterized by darkening of the stem: as a. : a disease of alfalfa caused by a fungus (Ascochyta imperfecta) b. : a disease of cabbage and cauliflower caused by a fungus (Phoma lingam) * * * Plant Pathol …   Useful english dictionary

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  • Stem rust — Puccinia graminis Scientific classification Kingdom: Fungi Phylum …   Wikipedia

  • black rust — noun 1. : a plant rust producing black discoloration; especially : black stem rust 2. : stem rust 2; especially : the uredostage of this fungus * * * Plant Pathol. any of several …   Useful english dictionary

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  • Stem rust (barley) — Stem rust is a fungal disease of barley caused by Puccinia graminis f.sp. tritici and Puccinia graminis f.sp. secalis .cite book last = Mathre first = D.E. title = Compendium of barley diseases publisher = American Phytopathological Society date …   Wikipedia

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