Summer dormancy increases persistence of perennial grasses in a wheatbelt environment.

Richard Hayes, Brian Dear, Guangdi Li, James Virgona, Mark Conyers, Belinda Hackney

    Research output: Book chapter/Published conference paperConference paperpeer-review

    Abstract

    Persistence and production of summer dormant cultivars, Kasbah cocksfoot (Dactylis glomerata L.) and Fraydo tall fescue (Festuca arundinacea Schreb.) was compared to that of Currie cocksfoot and Demeter tall fescue, both of which have higher levels of summer activity, at Wagga Wagga in southern NSW. Demeter tall fescue contributed the most (86% by dry weight) to total sward production in spring of the establishment year surpassing Currie cocksfoot (40%), and the summer dormant varieties, Fraydo tall fescue (15%) and Kasbah cocksfoot (7%). However, plant survival of Demeter tall fescue beyond the first summer (4 plants/m2) was low compared with Fraydo tall fescue (19), Currie cocksfoot (21), and Kasbah cocksfoot (33). The Demeter tall fescue sward had the lowest production (1250 kg/ha) in the subsequent winter compared with all other swards (average 2300 kg/ha). Both summer dormant cultivars were more persistent than their more summer active counterparts.
    Original languageEnglish
    Title of host publication13th AAC
    Subtitle of host publicationGround-breaking stuff
    EditorsT Acuna N C Turner, R C Johnson R C C Johnson
    Place of PublicationPerth, Australia
    PublisherThe Regional Institute
    ISBN (Electronic)1920842314
    Publication statusPublished - 2006
    Event13th Australian Agronomy Conference - Perth, Western Australia, Australia
    Duration: 10 Sep 200614 Sep 2006

    Conference

    Conference13th Australian Agronomy Conference
    Country/TerritoryAustralia
    Period10/09/0614/09/06

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