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Co-design of locally adapted wheat variety mixtures (Liveseed Practice abstract)

{Tool} Co-design of locally adapted wheat variety mixtures (Liveseed Practice abstract). Creator(s): Forst, Emma and Goldringer, Isabelle. Issuing Organisation(s): INRAE - National Research Institute for Agriculture, Food and the Environment. Liveseed Practice abstracts, no. 19. (2020)

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Document available online at: https://www.liveseed.eu/wp-content/uploads/2020/11/PA19_Co-design-of-locally-adapted-wheat-variety-mixtures.pdf


Summary

Practical recommendations
● limit disease development by keeping proportion of susceptible varieties < 30%, and by using varieties able to compensate through high tillering ability or high TKW (thousand kernel weight).
● increase weed control through wheat competitive ability by (i) using varieties with early vigour or high tillering ability, (ii) diversifying varieties for earliness, height and growth habit.
● face nitrogen stress by (i) tolerating an early deficit, by complementarity (ii) in time of nitrogen demand (diversified earliness), or (iii) for nitrogen use efficiency.


EPrint Type:Practice tool
Teaser:Look at farmers'point of view
What problem does the tool address?:A growing number of organic farmers cultivate variety mixtures for their ease of use and their ability to buffer
stress and environmental heterogeneity. Farmers have to choose the varieties for designing their mixtures, but
few guidelines have been proposed so far. In the case of winter wheat, mixtures are usually assembled primarily
based on yield. It is advised to mix varieties with complementary levels and sources of foliar disease resistances
and to maintain homogeneity of maturity to ensure good quality.
What solution does the tool offer?:To guide farmers with optimised composition mixtures, the approach is to identify assembly rules for combining
mixtures components (Figure). A participatory approach, based on workshops, is particularly suitable for
designing locally adapted mixtures. Gathering farmers, researchers and technical experts to exchange knowledge
allows many and varied ideas to emerge on how to favour complementarities and synergies between varieties
within mixtures.
Farmers’ point of view, especially in organic
farming, is very important for designing
assembly rules in accordance with farmers’
practices and production contexts.
Country:France
Type of Practice Tool:Practice abstracts
Agrovoc keywords:
Language
Value
URI
English
seed
http://aims.fao.org/aos/agrovoc/c_6927
Subjects: Crop husbandry > Breeding, genetics and propagation
Research affiliation: European Union > Horizon 2020 > Liveseed
European Union > Horizon 2020 > Liveseed > Liveseed tools
France > INRA - Institut National de la Recherche Agronomique
H2020 or FP7 Grant Agreement Number:727230
Related Links:https://organic-farmknowledge.org/tool/38785, https://www.inrae.fr/
Project ID:oknet
Deposited By: Ortolani, Dr. Livia
ID Code:38785
Deposited On:24 Mar 2021 08:17
Last Modified:22 Apr 2021 14:38
Document Language:English
Status:Published

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