Wild rice yield losses associated with growth-stage-specific fungal brown spot epidemics.

CL Kohls, JA Percich, C M Huot

Research output: Contribution to journalArticlepeer-review

Abstract

The effect of fungal brown spot (FBS), cause by Bipolaris oryzae , on the yield of wild rice (Zizania palustris ) during various specific growth stages were studied for 2 yr. When epidemics of FBS were initiated at boot, heading, early grain elongation, and milk stages, reductions of 67, 56, 32, and 0% resulted compared with the nondiseased control. Disease curtailment treatments, consisting of applying inoculum at the boot stage and allowing the disease to progress to mid grain elongation, milk, and grain ripening, resulted in yield reductions of 39, 74, and 74%, respectively, compared with the nondiseased control.
Original languageEnglish (US)
Pages (from-to)419-422
Number of pages4
JournalPlant Disease
Volume71
Issue number5
StatePublished - 1987

Keywords

  • Zizania palustris
  • brown spot
  • Bipolaris oryzae
  • yield
  • growth stages
  • A 01026:Gramineous crops
  • Microbiology Abstracts A: Industrial & Applied Microbiology
  • K 03089:Fungi: plant
  • Microbiology Abstracts C: Algology, Mycology & Protozoology

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