Effect of sowing rate of glycine and green panic mixtures on establishment and survival under dry conditions

Abstract

Glycine javanica cv. Tinaroo and green panic were sown together in May 1962 in all possible sowing-rate combinations of 2, 4, 8 and 16 lb/ac for the former and of 0, 0.5, 1, 2 and 4 lb/ac for the latter, and survival was followed for 2.5 years. Plant density of each species was dependent solely on the sowing rate of that species. There was no evidence of interspecific competition under these conditions, where neither species made sufficient growth to warrant yield samplings. Sparse stands of both species were present at the end of the study, though green panic at lower rates showed an increase in plant density; G. javanica stands gradually declined at all sowing rates.