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How to evaluate weed competitiveness in cereals (Liveseed Practice Abstract)

{Tool} How to evaluate weed competitiveness in cereals (Liveseed Practice Abstract). Creator(s): Flamm, Clemens. Issuing Organisation(s): AGES - Austrian Agency for Health and Food Safety. Liveseed Practice Abstract, no. 43. (2020)

[thumbnail of How to evaluate weed competitiveness in cereals] PDF - English (How to evaluate weed competitiveness in cereals)
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Document available online at: https://www.liveseed.eu/wp-content/uploads/2020/04/PA43_How-to-evaluate-weed-competitiveness-in-cereals.pdf


Summary

In the Austrian official VCU-tests the following parameters are used to describe the weed competitiveness of the varieties as they are fast to be collected:
- Crop ground cover (in percentage at BBCH* 28, BBCH 31-32, BBCH 34-47)
- Canopy height (in cm at BBCH 31-32, BBCH 34-47)
- Frequency of plants with recurved flag leaves (scale 1-9 at BBCH 37-47)
The tillering capacity is not regarded because it is included in the crop ground cover. The measuring of leaf area index (LAI) was abandoned in 2010 because measuring with special devices is very time consuming.


EPrint Type:Practice tool
What problem does the tool address?:The selection and the description of cereal varieties for competitiveness against weeds under organic conditions requires the identification of relevant crop characteristics and the development of routine methodologies to measure them. Weed suppression cannot be attributed to one single characteristics but is the result of the interaction between several parameters.
What solution does the tool offer?:In Austria, knowledge has been accumulated in variety testing under organic conditions in wheat since 1995. Three main tools of weed control are: plant physiology, allelopathy and harrowing. The differences between varieties are mostly described in their plant physiology. The following parameters are important to specify: crop ground cover, growth habit, tillering capacity, rapid early growth to stem elongation, plant height, inclination of leaves and leaf area index.
Country:Austria
Type of Practice Tool:Practice abstracts
Agrovoc keywords:
Language
Value
URI
English
seeds
http://aims.fao.org/aos/agrovoc/c_6946
English
varieties
http://aims.fao.org/aos/agrovoc/c_8157
Subjects: Crop husbandry > Breeding, genetics and propagation
Crop husbandry > Weed management
Research affiliation:Austria > AGES GmBH
European Union > Horizon 2020 > Liveseed
European Union > Horizon 2020 > Liveseed > Liveseed tools
H2020 or FP7 Grant Agreement Number:727230
Related Links:https://organic-farmknowledge.org/tool/37872
Project ID:oknet
Deposited By: Ortolani, Dr. Livia
ID Code:37872
Deposited On:14 Apr 2020 07:12
Last Modified:11 May 2020 11:25
Document Language:English
Status:Published

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