Varieties, plant breeding and release

Permanent URI for this collectionhttp://elibrary2.sugarresearch.com.au/handle/11079/13841

Research outcomes: Comprehensive and efficient variety breeding, selection and release programs responding to yield expectations, environmental constraints, resource scarcity and regional preferences. Faster varietal adoption using advanced methods for bulking, distribution and planting.

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2016 - 20193

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Author: search.filters.author.Parfitt, R

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    Field evaluation of selected introgression clones for their resistance to root-knot nematodes : ASSCT peer-reviewed paper
    (ASSCT, 2019) Bhuiyan, SA; Piperidis, G; Hu, F; Parfitt, R; Garlick, K; Quinn, B; Jakins, A
    Sugarcane nematodes, root-knot (RKN) and root-lesion (RLN), cause an estimated loss of over $80 million per year to the Australian sugar industry. In particular, RKN is a major problem if sugarcane is planted in sandy soil. No effective control method is available for sugarcane nematodes in Australia. Crop rotation and fallowing provide only short-term control and nematode populations usually bounce back within 12 months after these control methods. The use of nematicides is restricted due to inconsistent results, difficulty in application and the highly toxic nature of the chemicals to humans and the environment. No commercial cultivars are resistant to sugarcane nematodes. Recent glasshouse trials in Australia suggested that clones from introgression populations, originating from crossing between commercial canes and Saccharum spontaneum or Erianthus arundinaceus, possessed good resistance to root knot nematodes. Field trials were established to determine the reliability of glasshouse resistance-screening results. Eight introgression clones that showed resistance to RKN in glasshouse trials were evaluated in a field in Wallaville, north of Childers. Test clones were planted in plots with high and low nematode populations and maintained up to the second ratoon crop. Trial plots were assessed for nematodes each year 6 weeks after planting and ratooning. Three years of results showed that 7 of 8 introgression clones consistently maintained low numbers of RKN until the end of the trial period, and significantly (P
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    Maximising genetic gain from family and within family selection : final report 011/343
    (Sugar Research Australia Limited, 2016) Parfitt, R; Wei, X; Stringer, J
    The aim of this project is to improve the effectiveness and efficiency of selection in progeny assessment trials (PATs). These improvements will result in increased rates of genetic gain and the release of more productive varieties for the Australian sugarcane industry.
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    Assessment of new soft cane varieties : final report 2015/081
    (Sugar Research Australia Limited, 2016) Kent, G; Parfitt, R
    The project objectives were to: experimentally determine whether extraneous matter affects the fibre quality parameters measured by SRA; experimentally determine whether the commercial cane preparation process affects the fibre quality parameters measured by SRA; experimentally compare the handle-ability properties of SRA1 andQC04-1411 to the major variety in the central and southern regions - Q208. In 2016, three new cane varieties, SRA1, SRA4 and QC04-1411, were either released or were proposed for release into the Bundaberg and Mackay districts. According to the pre-release fibre quality measurements undertaken by Sugar Research Australia, all three varieties were classified as a soft cane. This report documents a series of experiments undertaken to better define soft canes and to measure the effect that these three varieties had on factory operation and performance.