Browsing by Author "Bureau of Sugar Experiment Stations (BSES)"

Now showing 1 - 6 of 6

A regional partnership approach to developing a sustainable sugar cane system : SRDC Final report MAS001
(SRDC, 2007) Rudd, A; Parker, D
The Mossman milling area has a unique place in the Australian sugar industry; not only is it the most northern of all mill areas but the Mossman Central Mill is one of the oldest independent milling companies and still substantially owned by its cane suppliers. It also has also established a reputation for innovation in both the processing and growing of sugarcane. By 2002 Mossman and most of the Australian sugar industry was suffering significant financial difficulties following a decade of expansion.
An assessment of the application of DNA markers to studies of genetic diversity and marker assisted selection in sugarcane : SRDC Final report SD99001
(1999) Carroll, B; McIntyre, L; Berding, N
The project objectives were as follows:
Assessment of bulk segregant analysis and marker- assisted selection for economically important traits in sugarcane : SRDC final report BS138
(1998) Carroll, B; Berding, N; McIntyre, L
The main aim of this project was to assess the feasibility of bulk segregant analysis (BSA) and marker-assisted selection for important traits in sugarcane. The target trait for this feasibility study was rust resistance. Initially, crosses were successfully made between susceptible and resistant parents to produce two mapping populations. Unfortunately and surprisingly, we were not able to identify fully susceptible clones in four separate rust trials on the two populations. Poor rust development occurred in the first bench trial in 1996 at Meringa (including clones known to be susceptible), and the second trial in January 1997 was a total failure due to lack of rust development. The third rust resistance trial was conducted in Meringa in July 1997, but all of the clones in the mapping populations were resistant. The fourth rust trial on these two populations was completed at the start of 1998, and the results confirmed that all of the clones in these two initial mapping populations were resistant to common rust. Lack of segregation for rust resistance within progeny of sugarcane crosses had not been observed previously by sugarcane breeders in Meringa. This unexpected problem delayed the project as BSA could only proceed after a mapping population segregating for rust resistance had been identified.
Improved selection systems and data analysis in sugarcane breeding programs : SRDC final report BSS250
(2006) Wei, X; Jackson, PA
Optimal plot size and replication for testing clones in early stages of selection : SRDC final report CSR017
(1998) Jackson, P; McRae, TA
The aim of CSRO 17 was to identifY optimal plot design, replication and selection criteria for testing and selecting clones in small plots in early stages of selection in sugarcane breeding programs. Problems associated with the use of small plots are well known in field experimentation. This is particularly so in variety selection trials where measurements in small plots are subject to possible bias due to competition effects when there are significant differences in height between genotypes being compared. In sugarcane breeding programs, small, single row or two row plots are usually used extensively for the first two stages of selection within seedling populations. The reasons for this include the desire to screen large populations of clones within available resource constraints to identifY rare, elite recombinants, and the necessity to bulk up planting material from original seedlings before planting to larger plots. Given the level of resources usually devoted to early stage selection trials, it is important that optimal procedures are used so that selection is effective and efficient. The overall approach used in the project was to obtain estimates of key genetic parameters from field experimentation and then to use these to predict gains from selection among relatively unselected clonal populations in sugarcane breeding programs using different selection options. The clones used in this study were representative of those directly derived from hybridisation in two different sugarcane breeding programs, and were unbiased by any previous selection. As such, the genetic parameters are useful for other studies that may simulate and assess different options for selection from the first stages of selection in sugarcane breeding programs.
Research Seminar, Bundaberg 2 March 1988
(2012) Bureau of Sugar Experiment Stations (BSES)
Fourth seminar held in Bundaberg focussing on southern canegrowers district. Topics cover research, research funding and extension.