Foundational concepts of seed technology including definitions by Cowan and Feistritzer, distinction between seed and grain, role of improved seeds in agricultural progress, scientifically produced seed characteristics, quality parameters (genetic purity, germination, vigor), and contribution to food security and disaster rehabilitation.
Details major fungal diseases affecting crops such as early blight, late blight, false smut, tikka disease, and red rot. Explains disease cycles, symptoms, pathogenic organisms, and control strategies, with visual diagrams to support understanding for undergraduate students.
The file reviews the ultrastructure of fungal cells, covering cell wall composition, architecture, synthesis, protoplast, nucleus, somatic division, organelles, and types of flagella. It includes detailed diagrams and highlights functions and differences among major fungal groups.
This lecture discusses the nutritional types of fungi – saprophytic, parasitic, symbiotic, and predacious. Key topics include macro and micro elements required for fungal growth, sources, essential vitamins, enzymes, metabolic pathways, and ecological roles.
Discusses the mutualistic symbiosis between fungi and plant roots, explaining types of mycorrhiza, the exchange of nutrients, benefits such as improved nutrient and water uptake, and the ecological importance for soil health and plant communication.