Comparison of some Stylosanthes species at three sites in central Queensland

Abstract

Nineteen accessions of eight Stylosanthes species were grown in association with volunteer species (mainly native grasses) for three years in small mown swards at three different sites in central Queensland. The outstanding accessions for dry matter yield were S. scabra 40292 and 40205: they significantly out-yielded S. hamata cv. Verano at all three sites and their plant densities in the third year at the wettest site were significantly higher than all other accessions except S. scabra 49833. At all sites, 'Verano' gave significantly higher mean annual dry matter yields than S. guyanensis cv. Oxley and S. humilis cv. Paterson. Other accessions that showed promise were S. scabra 49833 and 40289 and S. viscosa 34904: the latter accession performed relatively better at the wettest site.

Growth, Nodulation and Nitrogen Fixation in Stylosanthes: Effect of Different Root Temperatures at two Shoot Temperatures

“…Conversely, Verano, CPI40264A, Lawson, and Seca may well be restricted to areas with smaller fluctuations in soil temperatures. These differences between varieties are sufficient to suggest that soil temperature may place restrictions on environments for which the varieties can be recommended, and indeed they may have contributed to the success of Verano, Endeavour, Lawson and Seca as pasture plants in their respective environments in northern Australia (Burt et al, 1974;Edye et al, 1975Edye et al, , 1976.…”