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Thoughts for a new seed quality strategy, incorporating seed vigour and the microbiome

Groot, Steven P.C.; Klaedtke, Stéphanie; REY, Frederic and Kodde, Jan (2021) Thoughts for a new seed quality strategy, incorporating seed vigour and the microbiome. In: PROGRAMME AND ABSTRACT BOOK.

[thumbnail of ISSS 2021 Abstract Seed Quality Strategy.pdf] PDF - Published Version - English
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Summary

Official seed tests determine seed quality, using standardised lab conditions with an early and final count of germinated seeds and counting the frequency of normal seedlings, while seed health is considered as the absence of seed borne pathogens. In the field however, the seed or seedling will encounter biotic and abiotic stresses, therefore emergence in the field is often less than germination in the lab. In the field seed vigour is important. To favour the development of more resilient cropping systems, we suggest to place more emphasis on seed vigour , because early emergence in the field has a strong effect on crop establishment and frequently also on costs for corrective measures and total yield,. The ISTA handbook lists vigour tests, including the so-called controlled deterioration (CD) test, but only for a very limited number of crops.
In the frame of the European LIVESEED project1,2 we develop a new organic seed health strategy, which will also has advantages for other sustainable farming systems. The basic idea is that both seed vigour and the seed microbiome should be taken into account as elements that can aid the seed and seedling tolerance towards biotic and abiotic stresses. We showed that a CD treatment, inducing slight reduction in carrot seed vigour, increased the sensitivity to the damping-off causing pathogen Alternaria radicina.
Seeds are not sterile organisms, they contain a large amount of micro-organisms, collectively called the seed microbiome, that enable transfer of the microbiota from the mother plant to the next generation. Recent research has shown that the seed microbiome contains also organisms that can aid the seedling in its tolerance, sometimes even resistance, towards pathogens and abiotic stress. An overview of this will be presented, including how this can aid in a strategy towards more resilient cropping systems.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Lecture
Keywords:seed health seed microbiome seed quality seed vigour
Agrovoc keywords:
Language
Value
URI
English
seeds
http://aims.fao.org/aos/agrovoc/c_6946
English
vigour
http://aims.fao.org/aos/agrovoc/c_37512
English
resilience
http://aims.fao.org/aos/agrovoc/c_1374480530924
English
microbiome
UNSPECIFIED
Subjects: Crop husbandry > Production systems
Crop husbandry > Breeding, genetics and propagation
Crop husbandry > Crop health, quality, protection
Research affiliation: France > ITAB - Institut Technique en Agriculture Biologique
Netherlands > Wageningen University & Research (WUR)
Horizon Europe or H2020 Grant Agreement Number:727230
Deposited By: Groot, Dr. Steven P.C.
ID Code:41877
Deposited On:24 Aug 2021 07:57
Last Modified:24 Aug 2021 07:57
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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