ENHANCING ORGANIC SEED HEALTH, SEEDBORNE DISEASE DIAGNOSTICS AND BIO-CONTROL SYSTEMS FOR ORGANIC VEGETABLE CROPS IN SOUTHEASTERN US

The core issue in this proposal is the efficient detection of seed-borne plant pathogens and enhancing biological seed treatment to minimize loss in seedling establishment /production of organic and conventional vegetables to safeguard seed health and agrosecurity in Alabama and the southeastern United States.The specific objectives of the project are:(1) To develop rapid molecular diagnostic techniques for detecting seed-borne bacteria, viral and fungal plant pathogens.Here, we will develop rapid molecular diagnostic assays for plant pathogens and closely related strains to detect seed-borne and seed transmitted bacterial and fungal plant pathogens. Because of the importance and significance of seedborne pathogens and the challenges involved in their detection, it is tests that can provide fast, sensitive and reliable pathogen detection and be applicable in detecting all variants of a pathogen, or different pathogens that are needed. Molecular assays will also provide such needed sensitivity with broad applications.(2) To evaluate seed treatment for application of biocontrol organism/product.Seed treatment with biocontrol organisms is necessary to protect seeds during germination, seedling establishment and plant growth, hence minimize diseases. This is especially useful in organic production systems where it is one of the few options available besides cultural practices to manage diseases.(3) To recruit, and train minority students in seed pathology/ plant health sciences. Participation of minority students means that we will train the next generation of agricultural work force in seed health science to address global food security and agro-biosecurity providing them with knowledge and leadership skills to be successful in this sector of the economy.(4) To conduct educational outreach to stakeholders through workshops and field plot demonstrations.Participation of potential end users (certified organic, transitioning organic and conventional farmers alike) in the activities of the research will enhance capacity building and contribute to productivity of limited resource farms. Thus the project team will train and organize seed treatment/ health testing demonstrations for farmers at the Winfred Thomas Agricultural Research Station (WTARS).