Browsing by Author "Ogden-Brown, J"

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A healthy crop starts with clean seed
(Sugar Research Australia Limited, 2014) Ogden-Brown, J
One of the cornerstones of producing a high-yielding sugarcane crop is the use of approved clean seed or its progeny.
Beware of diseases that have an effect on plant emergence
(Sugar Research Australia Limited, 2014) Ogden-Brown, J
With the new planting season approaching, it is important that growers know about the soil-borne diseases that could affect the emergence of planted crops.
Changes to Biosecurity Act and Legislation within the Queensland sugarcane industry
(Sugar Research Australia Limited, 2015) Ogden-Brown, J
Changes to biosecurity legislation in Queensland have implications for the current sugarcane quarantine areas and the movement of sugarcane.
Changes to biosecurity within the Queensland sugarcane industry
(Sugar Research Australia Limited, 2013) Ogden-Brown, J
The sugar industry has a long history of working with governments to prevent the spread of serious pests and diseases, and to manage incursions or outbreaks.
Effects of pachymetra root rot and nematodes on some elite sugarcane clones in Australia
(ASSCT, 2016) Bhuiyan, SA; Croft, BJ; Wong, E; Ogden-Brown, J; Turner, M; Parfitt, R; Magarey, RC; Bull, J; Cox, MC
PACHYMETRA ROOT ROT and nematodes are the two most important soil-borne pathogens of sugarcane in Australia. An experiment was established in Yandaran, Queensland in grey forest soil with high Pachymetra spore counts (>100 000 spores/kg). Fifteen elite varieties and one advanced clone, from pachymetra root rot susceptible, intermediate and resistant categories, were planted in the experiment. The experiment was maintained until the second ratoon crop and Pachymetra and nematode populations were assessed in each crop. In addition, the incidence of smut was recorded before harvesting. Cane yield (TCH), commercial cane sugar (CCS) and sugar yield (TSH) were also measured in each crop. Pachymetra spore counts remained significantly lower in resistant varieties compared to susceptible and intermediate varieties until the second ratoon. In intermediate and susceptible varieties Pachymetra spore counts increased substantially, in particular, in second ratoon. In intermediate varieties such as Q232A and Q208A Pachymetra spore counts increased more than three times from plant crop to second ratoon. Numbers of nematodes, in particular root-lesion nematode, more than doubled in the second ratoon crop compared to the plant and first ratoon crops. Only Q248A had significant levels of smut, with 25% and 30% infected plants in the first and second ratoon crops, respectively. Yield reduction was substantial in the second ratoon compared to the plant and first-ratoon crop. Sugar yield decreased by 45% in the second ratoon compared to the first ratoon. Mostly, poor or negative correlations were observed between both Pachymetra spore counts and nematode numbers and yield.
It's planting time and diseases are waiting to attack
(Sugar Research Australia Limited, 2013) Ogden-Brown, J
With spring planting approaching, it is important that growers are aware of the soil-borne diseases that could affect their overall crop performance. The two diseases that could have the most impact are pineapple sett rot and pachymetra root rot. By understanding the diseases, you can plan to prevent and control the diseases to maximise emergence and crop yield.
Southern Region Group working together to drive productivity
(Sugar Research Australia Limited, 2017) Ogden-Brown, J
The Southern Region Group was formed to bring together stakeholders to drive productivity improvements, and has so far focussed on the key issues of optimising harvesting efficiency and improving production on marginal soils