Full TGIF Record # 4112
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Author(s):Biddiscombe, E. F.; Rogers, A. L.; Maller, R. A.
Author Affiliation:Div. of Land Resources Management, CSIRO, Wembley, W.A., Australia 6014
Title:Summer dormancy, regeneration and persistence of perennial grasses in south-western Australia
Source:Australian Journal of Experimental Agriculture and Animal Husbandry. Vol. 17, No. 88, 1977, p. 795-801.
Keywords:TIC Keywords: Drainage; Subsurface drainage; Phalaris aquatica; Dactylis glomerata; Festuca arundinacea; Lolium perenne; Growth; Dormancy; Reproductive performance
Abstract/Contents:Autumn growth and persistence of periodically-grazed spaced-plant swards of 11 perennial grasses were measured at 2 sites registering 750 mm and 1120 mm annual rainfall resp. The grasses were grown on gravelly podzolic soils of moderate internal drainage and depth of A horizon. After the 3rd summer, autumn regrowth was generally better in Phalaris tuberosa (= P. aquatica) lines than in lines of cocksfoot, Festuca arundinacea and perennial ryegrass. F. arundinacea cv. Melik and cocksfoot cv. Currie regenerated better than P. tuberosa lines in the 1st 2 autumn seasons at the drier site. Capacity for autumn growth appeared to be associated mainly with the level of dormancy achieved by basal buds at mid-summer, though relatively high dormancy of 1 or 2 lines at the drier site did not prevent significant plant mortality. Numbers of reproductive tillers/plant in spring and active basal buds/tiller in late summer were less important traits affecting the growth of some lines. It was suggested that rankings for summer dormancy would be useful for screening future introductions for wetter parts ()750 mm annual rainfall) of the SW region of Western Australia.
Geographic Terms:Australia, Western Australia
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Biddiscombe, E. F., A. L. Rogers, and R. A. Maller. 1977. Summer dormancy, regeneration and persistence of perennial grasses in south-western Australia. Aust. J. Exp. Agric. Anim. Husbandry. 17(88):p. 795-801.
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