Cultural control of common waterplantain (Alisma triviale) in wild rice (Zizania palustris).

J. K. Ransom, E. A. Oelke

Research output: Contribution to journalArticlepeer-review

Abstract

Opt. water depths for A. triviale grown from corms was 20 cm when cultivated outside in submerged pots at St. Paul, Minnesota, but 2 and 15 cm when grown in a sloping field at Grand Rapids. Growth of A. triviale from seed was max. at the lowest water depths (2-7 cm) at both locations. Dry wt. and seed yield of Z. palustris in the same experiments were max. at the 20- and 30-cm water depths at St. Paul, and the 15- and 28-cm depths at Grand Rapids. Water depths that decreased the effect of A. triviale interference with Z. palustris reduced yield of the latter. Establishment of A. triviale from corms was max. at 5- and 15-cm depths and severely reduced at 0- and 30-cm depths when flooded in spring but not autumn. Autumn flooding killed all corms regardless of burial depth. This could be due to ice-encasement.
Original languageEnglish (US)
Pages (from-to)562-566
Number of pages5
JournalWeed Science
Volume31
Issue number4
StatePublished - 1983

Keywords

  • control
  • ecology
  • aquatic organisms
  • flooding
  • management
  • water
  • aquatic plants
  • Aquatic weeds
  • Weeds
  • depth

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