Mechanical harvesting reduces sphacelia/sclerote levels of claviceps africana

Article


Ryley, M. J., Jensen, T. and Kyei, A. N.. 2003. "Mechanical harvesting reduces sphacelia/sclerote levels of claviceps africana." International Sorghum and Millets Newsletter.
Article Title

Mechanical harvesting reduces sphacelia/sclerote levels of claviceps africana

Article CategoryArticle
AuthorsRyley, M. J. (Author), Jensen, T. (Author) and Kyei, A. N. (Author)
Journal TitleInternational Sorghum and Millets Newsletter
Number of Pages3
Year2003
Place of PublicationAndhra Pradesh, India
Abstract

A study was undertaken in Queensland (Qld) and New South Wales (NSW), Australia, between 1999 and 2001 to quantify the reduction in sorghum ergot (C. africana) sphacelia/sclerotia during mechanical harvesting of eight sorghum (Sorghum bicolor) crops (crop 1, grower A, at Warwick (Qld) in 1999; crops 2 and 3, grower B, at Warwick in 2000 and 2001, respectively; crops 4 and 5, grower C, at Nobby (Qld) in 2000; crop 6, grower D, at Willowtree (NSW) in 2001; crop 7, grower E, at Kingaroy (Qld) in 2001; and crop 8, grower F, at Dalby (Qld) in 2001). There was considerable variation in the mean number and mass of sphacelia/sclerotia between crops before harvest and in the range of values within crops. This variation was also reflected in the 'after harvest' data. In six of the eight crops (crops 1, 3, 4, 5, 7 and 8), the mean numbers and % w/w of sphacelia/sclerotia after harvest were significantly less than the corresponding values before harvest. The after-harvest % w/w mean values for seven of the eight crops (crops 2-8) were less than the Australia stockfeed limit of <0.3%; however, in three of these (crops 3, 4 and 7), the upper value of the range was >0.3%. The reduction in sphacelia/sclerotia mass, as a result of mechanical harvesting, ranged from 44% (crop 4) to 76% (crop 1), and the reduction in numbers ranged from 0% (crop 2) to 80% (crop 5). Findings suggest that mechanical harvesting can significantly reduce the admixture levels of sphacelia/sclerotia in sorghum grain.

Keywordsergot; mechanical harvesting; sorghum ergot
ANZSRC Field of Research 2020300199. Agricultural biotechnology not elsewhere classified
300403. Agronomy
300409. Crop and pasture protection (incl. pests, diseases and weeds)
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Byline AffiliationsDepartment of Primary Industries and Fisheries, Queensland
Department of Primary Industries, Queensland
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Potential technologies to measure sugarcane quality in the field
Nawi, Nazmi Mat, Chen, Guangnan, Jensen, Troy and Baillie, Craig. 2012. "Potential technologies to measure sugarcane quality in the field." 2012 International Conference of Agricultural Engineering (CIGR-AgEng 2012). Valencia, Spain 08 - 12 Jul 2012 Valencia, Spain.
Prediction of sugar content along the height of sugarcane internodes using VisNIR
Nawi, Nazmi Mat, Chen, Guangnan, Jensen, Troy and Baillie, Craig. 2012. "Prediction of sugar content along the height of sugarcane internodes using VisNIR." 2012 International Conference of Agricultural Engineering (CIGR-AgEng 2012). Valencia, Spain 08 - 12 Jul 2012 Valencia, Spain.
Evaluating tractor performance and exhaust gas emissions using biodiesel from cotton seed oil
Al-lwayzy, Saddam H., Yusaf, Talal and Jensen, Troy. 2012. "Evaluating tractor performance and exhaust gas emissions using biodiesel from cotton seed oil." 1st International Conference of Mechanical Engineering Research (ICMER 2011). Kuantan, Malaysia 05 - 07 Dec 2011 United States. Informa UK(IOP Books). https://doi.org/10.1088/1757-899X/36/1/012042
The use of an unmanned aerial vehicle as a remote sensing platform in agriculture
Jensen, T. A., Zeller, L. C. and Apan, A. A.. 2011. "The use of an unmanned aerial vehicle as a remote sensing platform in agriculture." Australian Journal of Multi-Disciplinary Engineering. 8 (2), pp. 139-146.
Transferring technology of measuring sugarcane quality from the laboratory to the field: what is possible?
Nawi, Nazmi Mat, Chen, Guangnan, Jensen, Troy and Baillie, Craig. 2011. "Transferring technology of measuring sugarcane quality from the laboratory to the field: what is possible?" Banhazi, T., Saunders, C. and Hegarty, R. (ed.) SEAg 2011: Diverse Challenges, Innovative Solutions. Gold Coast, Australia 29 - 30 Sep 2011 Canberra, Australia.
The application of spectroscopic methods to predict sugarcane quality based on stalk cross-sectional scanning
Nawi, Nazmi Mat, Jensen, Troy, Chen, Guangnan and Baillie, Craig. 2011. "The application of spectroscopic methods to predict sugarcane quality based on stalk cross-sectional scanning." Banhazi, T., Saunders, C. and Hegarty, R. (ed.) SEAg 2011: Diverse Challenges, Innovative Solutions. Gold Coast, Australia 29 - 30 Sep 2011 Canberra, Australia.
Assessing various techniques to monitor yield in sugarcane
Jensen, T. A., Fokkema, B. and Baillie, C.. 2011. "Assessing various techniques to monitor yield in sugarcane ." Banhazi, T., Saunders, C. and Hegarty, R. (ed.) SEAg 2011: Diverse Challenges, Innovative Solutions. Gold Coast, Australia 29 - 30 Sep 2011 Canberra, Australia.
The possibility of using polymers in agriculture milling equipment
Al-Sandooq, J. M., Yousif, B. F. and Jensen, T. A.. 2011. "The possibility of using polymers in agriculture milling equipment." Banhazi, T., Saunders, C. and Hegarty, R. (ed.) SEAg 2011: Diverse Challenges, Innovative Solutions. Gold Coast, Australia 29 - 30 Sep 2011 Canberra, Australia.
Harvesting, processing and marketing Australian native grass seeds
Loch, D. S., Johnston, P. W., Jensen, troy and Harvey, G. L.. 1996. "Harvesting, processing and marketing Australian native grass seeds." New Zealand Journal of Agricultural Research. 39, pp. 591-599.
Drying rate and damage to navy beans
Radajewski, W., Jensen, T., Abawi, G. Y. and McGahan, E. J.. 1992. "Drying rate and damage to navy beans." Transactions of the ASABE. 35 (2), pp. 583-590.
Assessment of sugarcane yield monitoring technology for precision agriculture
Jensen, T., Baillie, C., Bramley, R., Di Bella, L., Whiteing, C. and Davis, R.. 2010. "Assessment of sugarcane yield monitoring technology for precision agriculture." Bruce, R. C. (ed.) 32nd Annual Conference of the Australian Society of Sugar Cane Technologists (ASSCT 2010). Bundaberg, Australia 11 - 14 May 2010 Brisbane, Australia.
Relating satellite imagery with grain protein content
Basnet, Badri Bahadur, Apan, Armando, Kelly, Rob, Jensen, Troy, Strong, Wayne and Butler, David. 2003. "Relating satellite imagery with grain protein content." 2003 Spatial Sciences Institute Biennial Conference: Spatial Knowledge Without Boundaries (SSC2003). Canberra, Australia 22 - 27 Sep 2003 Canberra, Australia.
Real-time protein monitoring - Australian experiences
Jensen, T., Zeller, L., Fox, G., Town, W. and Kelly, R.. 2005. "Real-time protein monitoring - Australian experiences." Stafford, John V. (ed.) 5th European Conference on Precision Agriculture. Uppsala, Sweden 09 - 12 Jun 2005 Wageningen, The Netherlands.
Grain crop attributes detected using digital imagery acquired from a low-altitude helium balloon
Jensen, T., Apan, A., Young, F. and Zeller, L.. 2005. "Grain crop attributes detected using digital imagery acquired from a low-altitude helium balloon." Stafford, John V. (ed.) 5th European Conference on Precision Agriculture. Uppsala, Sweden 09 - 12 Jun 2005 Wageningen, The Netherlands.
Use of airborne hyperspectral imagery to determine quality of sorghum crops
Wells, Natasha, Kelly, Rob, Phinn, Stuart, Apan, Armando, Jensen, Troy, Cooper, John and Strong, Wayne. 2004. "Use of airborne hyperspectral imagery to determine quality of sorghum crops." 12th Australasian Remote Sensing and Photogrammetry Conference (ARSPC 2004): To Measure is to Manage. Fremantle, Australia 18 - 22 Oct 2004 Adelaide, South Australia.
Evaluation of a proximal vision data acquisition system for measuring spatial variability in lettuce growth
Hussain, Amjed, Raine, Steven R., Henderson, Craig and Jensen, Troy. 2008. "Evaluation of a proximal vision data acquisition system for measuring spatial variability in lettuce growth." Unkovich, M. (ed.) 14th Australian Agronomy Conference: Global Issues. Paddock Action. Adelaide, Australia 21 - 25 Sep 2008 Gosford, NSW, Australia.
Application of probability analysis to assess nitrogen supply to grain crops in Northern Australia
Kelly, R. M., Strong, W. M., Jensen, T. A. and Butler, D.. 2004. "Application of probability analysis to assess nitrogen supply to grain crops in Northern Australia." Precision Agriculture. 5 (2), pp. 95-110. https://doi.org/10.1023/B:PRAG.0000022356.01537.67
Crop maturity mapping using a low-cost low-altitude remote sensing system
Jensen, Troy, Apan, Armando and Zeller, Les. 2009. "Crop maturity mapping using a low-cost low-altitude remote sensing system." Ostendorf, Bertram, Baldock, Penny, Bruce, David, Burdett, Michael and Corcoran, Paul (ed.) 2009 Surveying and Spatial Sciences Institute Biennial International Conference (SSC 2009): Spatial Diversity. Adelaide, Australia 28 Sep - 02 Oct 2009 Adelaide, Australia.
The use of a UAV as a remote sensing platform in agriculture
Jensen, Troy, Apan, Armando and Zeller, Leslie. 2009. "The use of a UAV as a remote sensing platform in agriculture." Banhazi, T. M. and Saunders, C. (ed.) SEAg 2009: Agricultural Technologies In a Changing Climate. Brisbane, Australia 13 - 16 Sep 2009 Brisbane, Australia.
Detecting the attributes of a wheat crop using digital 3D imagery acquired from a low-altitude platform
Jensen, T., Apan, A., Young, F. and Zeller, L.. 2007. "Detecting the attributes of a wheat crop using digital 3D imagery acquired from a low-altitude platform." Computers and Electronics in Agriculture. 59 (1-2), pp. 66-77. https://doi.org/10.1016/j.compag.2007.05.004
Assessing grain crop attributes using digital imagery acquired from a low-altitude remote controlled aircraft
Jensen, Troy, Apan, Armando, Young, Frank R., Zeller, Leslie Charles and Cleminson, Ken. 2003. "Assessing grain crop attributes using digital imagery acquired from a low-altitude remote controlled aircraft." 2003 Spatial Sciences Institute Biennial Conference: Spatial Knowledge Without Boundaries (SSC2003). Canberra, Australia 22 - 27 Sep 2003 Canberra, Australia.