A reliable evaluation of varieties and agronomic practices is essential to secure European agricultural production (food security), lower pesticides usage (agro-ecology) and increased resilience of management practices (climate change). This requires assessing the ability of hundreds of varieties to cope with a range of environmental conditions representing current and future scenarios of climate or crop management. Indeed, two plants sharing the same genotype can display markedly different plant structures, functions and metabolisms when placed in contrasting environmental conditions. Phenomic experiments of EPPN2020 aimed to provide, in controlled conditions (indoor and field), the necessary elements for understanding and exploiting the genotype x environment interaction observed in genetic and agronomic field studies. EPPN2020 focused on (i) well-characterized environmental conditions, with control/manipulation of temperature, soil water status and CO2 concentration, (ii) precise imaging of the growth, architecture and function of root systems, leaves and reproductive organs for 100s to 1000s of plants, allowing genetic analyses (iii) measurement, with the same throughput, of metabolites and fluxes of water or nutrients to assemble a physiological phenotype.
This was in a context of 'big data' in which several experiments need to be analysed jointly, even by scientists who did not participate to them. EPPN2020 focused on (i) tracing environmental conditions and phenotypic information with necessary metadata, (ii) providing the community with appropriate statistical tools and experimental designs, (iii) organising datasets in a FAIR way (findable, accessible, interoperable, reusable), making use of the rapid progress of internet of things and of web semantic.
EPPN2020 provided the European Plant Science community (public and private) with access to phenomic installations chosen for excellence, with a capacity of hundreds of genotypes and dedicated to innovative non-invasive measurement of traits at different levels of plant organization. It provided this community with methods and software tools for organization, storage and joint analysis of experiments at different scales (organ to canopy), time resolutions (minutes to days), for contrasting environmental conditions (current or future). EPPN2020 coordinated its activities with the ESFRI infrastructure EMPHASIS, with the communities of modelling and genomics and with national programs.