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How to assess weed competitiveness in organic cultivar trials with wheat? (Liveseed Practice abstract)

{Tool} How to assess weed competitiveness in organic cultivar trials with wheat? (Liveseed Practice abstract). Creator(s): Gutzen, Kaja. Issuing Organisation(s): IFOAM EU. Liveseed Practice Abstract, no. 7. (2020)

[thumbnail of How to assess weed competitiveness in organic cultivar trials with wheat?] PDF - English (How to assess weed competitiveness in organic cultivar trials with wheat?)

Document available online at: https://www.liveseed.eu/wp-content/uploads/2020/11/PA7_How-to-assess-weed-competitiveness-in-organic-cultivar-trials-with-wheat.pdf


Practical recommendations
The plant physiology gives a good indication on the variety’s ability to compete with weeds. The handbook for
Cereal Variety Testing for Organic and Low Input Agriculture recommends using a combination of different components:
● Crop ground cover (%): measured at early tillering
● Growth habit (e.g., inclination of leaf): measured at the start of tillering
● Tillering capacity (number of shoots/m2
):should be combined with other measurements
● Rapid early growth to stem extension (days or 1-9 scale)
● Plant height (cm): should be combined with other measurements

EPrint Type:Practice tool
Teaser:Assess weed competitiveness!
What problem does the tool address?:In many EU countries, weed competitiveness is not part of official variety testing protocols. Organic farmers that
forego herbicides and conventional farmers that wish to reduce spraying, face the problem of identifying wheat
cultivars that are suitable for their management conditions.
What solution does the tool offer?:Farmers can set up on-farm trials to test different wheat cultivars. The farmer can use the cultivar which he usually cultivates as a reference variety. Next to the field, 2 to 3 cultivars are sown in strips and compared to the reference. The same management practices are performed uniformly to the trial fields. Visual assessment of a combination of different plant physiological properties can be used for
evaluating the cultivar’s weed competitiveness. Ideally, the trial is repeated over several seasons. Networking and discussion groups among farmers to share experiences can help to give a good overview over a broad range of potential cultivars.
Type of Practice Tool:Practice abstracts
Agrovoc keywords:
plant breeding
Subjects: Crop husbandry > Breeding, genetics and propagation
Research affiliation: European Union > Horizon 2020 > Liveseed
European Union > Horizon 2020 > Liveseed > Liveseed tools
Hungary > Hungarian Research Institute of Organic Agriculture
International Organizations > International Federation of Organic Agriculture Movements IFOAM > IFOAM EU Group
H2020 or FP7 Grant Agreement Number:727230
Related Links:https://organic-farmknowledge.org/tool/38980, https://www.organicseurope.bio/, https://www.biokutatas.hu/
Project ID:ofk
Deposited By: Ortolani, Dr. Livia
ID Code:38980
Deposited On:14 Feb 2021 09:16
Last Modified:16 Feb 2022 12:30
Document Language:English

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