Weed competition by plant architecture - chickpeas, South Australia

2007
CC BY 4.0

Research organisatons
Funding sources

Trial details

Researcher(s) Eric Armstrong (SARDI)
Jason Brand (DPIVic)
Luke Gaynor (DPI NSW)
Michael Lines (SARDI)
Larn McMurray (DPIVic)
Year(s) 2007
Contributor Southern Pulse Agronomy
Trial location(s) Turretfield, SA
Weed competition by plant architecture - chickpeas, South Australia locations
Aims

To determine wether varietal differences in chickpea plant architecture effect their competitiveness with ryegrass.

Key messages
  • Site background weed levels increased total weed competition levels to very high numbers
    masking differences between genotypes for grain yield. However genotype differences still
    occurred for competition score and final ryegrass tiller numbers in the low ryegrass
    treatment.
  • Limited findings suggests there is variation in the current chickpea genotype for competition
    with ryegrass, particularly in reducing tiller numbers. Tall types (CICA512) and types with
    wide branching angles (Sonali) were generally more competitive than short and narrow
    branching angle types.
  • The concept trial had limited success in 2007 due to trial methodology and site selection
    issues. Further refinements to trial methodology are required for 2008. These are:
    o Lower rye grass numbers (40 and 100 plants per sq.m) are required than those used
    in 2007 (adapted from work undertaken in wheat).
    o A site with very low background weed numbers is essential due to limited herbicide
    options available.
    o The ability of the chickpea variety to reduce ryegrass tiller numbers is likely to be a
    greater assessment of the competitive rating of the variety than its grain yield.
  • A number of lines with a greater variation in vigour, plant height and plant shape (degree of
    angle of branches) than those evaluated in 2007 have been selected from advanced breeding trials in 2007 for assessment in 2008.
Lead research organisation Department of Primary Industries VIC
Host research organisation N/A
Trial funding source GRDC
Trial funding source DPIVic
Trial funding source SARDI
Trial funding source DPI NSW
Related program Southern Pulse Agronomy
Acknowledgments

Key contributors:
The authors wish to thank the contributions of the following people to this project:

  • Russel Argall, Jason Ellifson and Justine Ellis, DPI - Horsham
  • Jenny Davidson, Jim Egan and Jo Crouch - SARDI
  • Peter Matthews and and Ian Menz - DPI NSW


Acknowledgements:
The authors wish to acknowledge the support and assistance of the following people:

  • Michael Materne, Kristy Hobson and Tony Leonforte, PBA, DPI - Horsham.

The assistance and help of John Nairn, Peter Maynard, Mark Bennie and Rowan Steele, SARDI Clare, with trial management is gratefully acknowledged.


Other trial partners SARDI, DPI NSW
Download the trial report to view additional trial information

Method

Crop type Grain Legume: Lentils
Treatment type(s)
  • Crop: Variety
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Turretfield 2007

Sow date 9 June 2007
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser

MAP+2% zinc @ 76 kg/ha drilled with the seed.

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
Turretfield, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Turretfield, SA Chromosol
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 Turretfield SA
2007 184.7mm
2006 211.3mm
2005 267.9mm
2004 226.1mm
2003 193.2mm
2002 181.4mm
2001 220.5mm
2000 201.8mm
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.

Turretfield SA

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 last modified: 16-06-2018 09:01am AEST