Sunflower contribution of leaves to grain yield and quality - Pine Ridge 2014-15

2014 - 2015

Research organisaton
Funding sources

Trial details

Researcher(s) Mark Hellyer (NSW DPI)
Peter Perfrement (NSW DPI)
Loretta Serafin (NSW DPI)
Year(s) 2014 - 2015
Contributor Department of Primary Industries NSW
Trial location(s) Pine Ridge, NSW
Further information View external link
Sunflower contribution of leaves to grain yield and quality - Pine Ridge 2014-15 locations
Aims

To quantify the contribution of sunflower leaves to yield and oil quality by applying nine leaf defoliation treatments. 

Key messages
  • The more area of leaf removed, the greater the yield loss in sunflowers.
  • The greatest effect on yield was from total leaf defoliation at the start of flowering or the end of flowering, which reduced yield by 1.16 t/ha (78%) and 1.02 t/ha (66%) compared to the control.
  • Removing the top 10 leaves at the end of flowering had no effect on grain yield or any of the quality parameters measured.
Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC DAN00197
Trial funding source DPI NSW
Related program Tactical agronomy for selected crops in the northern region (safflower, linseed, sunflower)
Acknowledgments

This research was co-funded by NSW DPI and GRDC under project DAN00197: Tactical agronomy for minor oilseeds – sunflower, safflower and linseed. Thanks to Peter Winton “Windy Station” and Peter McKenzie for assistance with the site. Thanks to Nuseed and Neil Weier for supplying trial seed. The technical assistance of the following NSW DPI staff are gratefully acknowledged: Delphi Ramsden, Michael Dal Santo, and former staff: Nicole Carrigan and Angus Hombsch.


Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Oilseed: Sunflower
Treatment type(s)
  • Harvest
  • Management systems: Other
Trial type Experimental
Trial design Replicated

Pine Ridge 2014

Sow rate or Target density Target of 35,000 plants/ha
Sowing machinery

Monosem precision planter 

Sow date 23 October 2014
Harvest date 27 February 2015
Plot size Not specified
Plot replication Not specified
Fertiliser

50 units N as anhydrous ammonia and 100 kg/ha of Pasture S42 

Other trial notes

This research paper is an extract from the publication Northern grains Research Results 2016, available at
https://www.dpi.nsw.gov.au/agriculture/broadacre-crops/guides/publications/ngrt-results
 

Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Pine Ridge, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Pine Ridge, NSW Vertosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Pine Ridge NSW
2015 244.8mm
2014 237.8mm
2013 240.5mm
2012 241.9mm
2011 206.0mm
2010 245.9mm
2009 246.0mm
2008 264.8mm
2007 260.6mm
2006 259.8mm
2005 248.7mm
2004 299.7mm
2003 358.4mm
2002 378.0mm
2001 480.3mm
2000 604.1mm
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

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Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Pine Ridge NSW

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.

Trial report and links

2014 trial report



Trial last modified: 19-10-2023 14:05pm AEST