
%0 Journal Article
%A Rossiter, RC 
%A Palmer, MJ 
%T An analysis of seed yield in some strains of subterranean clover (<I>Trifolium subterraneum</I> L.) when grown in binary mixtures
%J Australian Journal of Agricultural Research
%D 1981/06/01
%V 32
%N 3
%P 445-452
%K 
%R https://doi.org/10.1071/AR9810445
%U https://www.publish.csiro.au/paper/AR9810445 
%X Two experiments using various strains of subterranean clover are described. The first experiment was conducted in the field with mixtures of Dwalganup/Northam A, DwalganupI/Daliak and Yarloop/Seaton Park, and the second in an open-sided glasshouse with Yarloop/Seaton Park. In the field experiment, the plots were grazed continuously from late July until early November when the swards were completely dry; in the glasshouse experiment, the swards were defoliated weekly until shortly after the beginning of flowering. Mixtures were arranged according to the de Wit replacement series. Seed yields for the Dwa1ganup/Northam A mixture showed the classical (de Wit) competition for the same resources, with Northam A the better competitor. On the other hand, for the Dwalganup/Daliak and Yarloop/Seaton Park mixtures there was no clear evidence of a competitive advantage of one strain over the other pair member, at least under our defoliated conditions. Whether or not this absence of 'competition' (as usually understood) is common in clover-strain mixtures is as yet unknown. We emphasize, however, that long-term success of clover strains in mixtures is not invariably associated with competitive advantage. 
