SolACE's overarching goal is to help European agriculture facing the challenge to deal with more frequent combined limitations of water and nutrients in the coming decades, through the design of novel crop genotypes and agroecosystem management innovations to improve water and nutrient (i.e. N and P) use efficiency. To achieve this goal, SolACE will focus its activities on three major European crops - potato, bread and durum wheat - and will identify the (i) optimum combinations of above- and below-ground traits for improving resource use efficiency, (ii) best-performing genotypes under combined water and N or P stresses and (iii) novel practices that make better use of plant-plant and plant-microbe interactions to access water, N and P resources in conventional, organic and conservation agriculture. SolACE will implement a double interactive innovation loop, based on agroecosystem management and breeding strategies, and will imply the engagement of diverse end-users, across the production chain, from farmers and farm advisors to NGOs, SMEs and larger industries in the agri-business sector, through the SolACE consortium and a range of stakeholders' events. The tested innovations will include crop genotype mixtures, legume-based crop rotations and cover crops, microbial inoculants, as well as improved decision support systems and hybrids or products from genomic selection and participatory evolutionary breeding schemes. SolACE will implement complementary approaches, from data mining, modelling, phenotyping in high throughput platforms and field conditions, to experiments in research stations and farmers' networks in contrasted pedo-climatic zones. Through the co-design and co-assessment with the end-users of the selected novel breeding and management strategies to increase the overall system resource use efficiency, the findings of SolACE will be deemed acceptable and readily available for dissemination to a broad spectrum of stakeholders, including policy-makers.

Climate-resilient sunflower crops can help to reduce the EU dependency on imports of vegetable oils and proteins shifting towards sustainable alternatives, to mitigate the impact of agricultural production on water use and greenhouse gas emissions, to grow resources for pollinators, and to promote biodiversity. HelEx will generate the knowledge and use innovative tools to accelerate the breeding of sunflower varieties adapted to extreme drought and heat stresses, while improving their environmental impact and assessing their socio-economic value of the resulting innovations along the value chains. HelEx will thereby consider two related groups of traits increasingly impacted by climate change, i.e. the eco-systemic service to pollinators and seed quality. For this, HelEx brings together scientists, SMEs, and industries representing an international consortium of experts in sunflower ecology, physiology and genomics; plant biotechnology and breeding; pollinator biology and ecology; environmental impact assessment and feedstock processing; and socioeconomic assessment at different scales. This HelEx multi-disciplinary consortium will explore the genetic and molecular processes involved in tolerance to drought and heat in wild extremophile Helianthus species, and identify favorable wild alleles introgressed into cultivated sunflower, for seed quality and pollinator attractiveness resilience (WP1). These processes will be transfered using classical marker-assisted selection and innovative genome editing approaches (WP2), and the environmental and biodiversity impact of these new climate-smart sunflowers assessed (WP3). HelEx will investigate the socio-economic impact and benefits in relevant value chains for different feedstock (WP4). Our communication strategy (WP5) will engage a variety of societal stakeholders to ensure feedback and enhance project progress and outcomes, and make transparent the broader dimensions of plant biotechnology, biodiversity, and benefit sharing

Viral diseases can cause severe losses to vegetable crop production which has an estimated annual value of 34,5 billion EUR in Europe. Therefore several billions are lost every year due to the prominence of viral diseases and the emergence of new viruses in European fields and greenhouses. Importantly viral diseases also lead to the extensive use of pesticides, thereby exposing European growers and consumers to pesticide residues. In relation to the work programme, the project aims at developing rapid and lasting solutions to emerging viral diseases caused by begomoviruses (whitefly-transmitted) and tobamoviruses (mechanically transmitted) on cucurbits and tomato in Northern Europe and the Mediterranean Basin as well as at increasing knowledge to better control and manage the viral diseases. The project is structured in 6 objectives : 1. Knowledge sharing and engagement of stakeholders in research activities (Short term impact) 2. Develop robust diagnostic tests, quarantine measures and identify ecological factors driving disease outbreaks (Short term impact) 3. Understand plant-virus(es)-vector interactions (Medium term impact) 4. Develop IPM solutions (Medium term impact) 5. Pyramidize natural resistance (Long term impact) 6. Train the value chain (Medium term impact) The objectives will build on 1) detailed study of virus biology and transmission under climate change conditions; 2) development of classical solutions (IPM and natural resistance) to control viral diseases with two distinct modes of transmission; 3) testing novel approaches (biopesticides, biological control, cross-protection) to mitigate viral diseases and to reduce pesticide usage. In order to take into account the diversity of vegetable cropping systems and viral diseases, focus groups involving extension services, commercial companies and growers will help co-designing research activities and mitigation strategies from the onset of the project.