Agriculture and Plant Science

The FFA Creed was written by E.M. Tiffany and adopted at the 3rd National FFA Convention in 1930.

Insects are significant vectors for plant pathogens, meaning they can transmit viruses, bacteria, and fungi from infected plants to healthy ones while feeding.

Weather conditions like hail, excessive rain, and extreme temperatures all have significant negative impacts on plant growth, pollination, and root health.

Nitrogen is a key component of chlorophyll, which gives plants their green color. A deficiency in nitrogen typically manifests as chlorosis, or yellowing, of the older leaves and stunted growth.

Genetic modification involves the direct manipulation of an organism's genes using biotechnology in a laboratory setting, whereas selective breeding relies on natural reproductive processes over generations.

GMO is the standard acronym for Genetically Modified Organism, referring to any organism whose genetic material has been altered using genetic engineering techniques.

Genetically modified crops are plants whose DNA has been altered using genetic engineering techniques. This is typically done to enhance desirable traits such as pest resistance, improved yield, or better nutritional content.

Hydroponics is a method of growing plants without soil, using mineral nutrient solutions in an aqueous solvent. The roots are typically submerged in or misted with this nutrient-rich water.

Primary producers are organisms that produce their own food using energy from sunlight, water, and carbon dioxide. This process is known as photosynthesis, and it forms the base of the food chain.

Fertilizers are substances added to soil or plants to supply essential nutrients, most commonly nitrogen, phosphorus, and potassium, to promote growth.

Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water. It is a major concern in agriculture as it removes fertile topsoil.

Production agriculture refers to the actual farming process, which is the initial step in the food supply chain. It involves the cultivation of crops and the raising of livestock.

Hydroponics specifically excludes the use of soil. It uses water or other inert media to support plant growth while delivering nutrients directly to the roots.

During photosynthesis, plants take in carbon dioxide and water, and release oxygen as a byproduct. This is the reverse of cellular respiration in many ways.

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.

Leaves are the primary site of photosynthesis in most plants because they contain chlorophyll, the pigment that captures light energy.

Stems provide structural support and act as the transport system for water and minerals (via xylem) and sugars (via phloem) between the roots and leaves.

Flowers are the reproductive structures of plants. They use bright colors and fragrances to attract pollinators like bees, which help in the process of fertilization.

Roots anchor the plant in the soil and are responsible for absorbing water and dissolved minerals, which are then transported to the rest of the plant.