STUDIES IN THE DYNAMICS OF PLANT POPULATIONS: V. MECHANISMS GOVERNING THE SEX RATIO IN RUMEX ACETOSA AND R. ACETOSELLA.

The article discusses the studies conducted on the mechanisms governing the sex ratio in Rumex acetosa and Rumex Acetosella. It states that there is a prominent contrast between the sex ratios of natural populations of R. acetosa and R. acetosella. According to A. Löve, natural populations of R. acetosela in North Wales and Scandinavia, have a sex ratio of 1 male: 1 female, although W. Harris has found few populations in New Zealand that depart significantly from a 1:1 sex ratio. In 1961, F. S. Anderson studied the results of a large number of experiments with species and discovered that in some species, the proportion of females decreases with increasing density.