Tropical Grasslands (1988) Volume 22, 139144
SEXUALITY AND HYBRIDISATION IN SIGNAL GRASS, BRACHIARIA DECUMBENS
CSIRO Division of Tropical Crops and Pastures, 306 Carmody Road, St Lucia, Queensland 4067.
Brachiaria decumbens, a widely-sown tropical pasture grass, is an obligate apomict and genetic improvement by breeding is not possible in the absence of a sexual form. Forty accessions of the genus Brachiaria, including 14 species, were grown as spaced plants in afield experiment. Plots were assessed for morphological variation which might be associated with sexuality.