
doi: 10.1007/bf00029873
Digitaria eriantha is a subtropical grass which is widely sown as a pasture species in South Africa and cultivars have recently been released in Australia. The species is variable in seed production and in other agronomic attributes. This paper describes a breeding program designed to combine the seed production of cv. Premier with the high productivity in winter-spring of an almost sterile genotype. Hybrids between the two accessions were either triploid and sterile, or diploid with low fertility. The F to F generations were selected intensively for fertility and, at two contrasting sites, for spring productivity, with both maternal and paternal selection. The F generation was grown as replicated swards and yield in spring, and fertility, were used for selection of elite F plants to comprise the parents of a new cultivar (cv. Advance). In evaluation trials, spring dry matter production of Advance averaged 40% higher than that of Premier. On average, seed production of Advance was 11% lower than that of Premier and botanical fertility was consistently about half that of Premier. Experimental yields of cleaned seed of Advance were up to 138 kg/ha. In commerce, seed yields of Advance are likely to be lower than those of Premier unless higher inflorescence densities than Premier can be achieved.
1311 Genetics, seed production, 1110 Plant Science, 1102 Agronomy and Crop Science, 1108 Horticulture, Digitaria eriantha, spring growth, tropical grasses
1311 Genetics, seed production, 1110 Plant Science, 1102 Agronomy and Crop Science, 1108 Horticulture, Digitaria eriantha, spring growth, tropical grasses
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
