
%0 Journal Article
%A Hacker, JB 
%T Cytological investigations in the <I>Setaria sphacelata</I> complex
%J Australian Journal of Agricultural Research
%D 1966/06/01
%V 17
%N 3
%P 297-301
%K 
%R https://doi.org/10.1071/AR9660297
%U https://www.publish.csiro.au/paper/AR9660297 
%X A cytological study of a wide range of strains of the Setaria sphacelata complex showed that diploid, tetraploid, pentaploid, hexaploid, octoploid, and decaploid races occur within the species complex. In addition, a number of plants had one or more (rarely up to 1.5) extra chromosomes which were probably B-chromosomes. No variation was recorded in the number of B-chromosomes in different root tips from the same plant, but different plants from the same strain frequently had differing numbers of B-chromosomes. Breeding problems arising from the cytological complexity of S. sphacelata are discussed. 
