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Genetic Diversity - genetic variation within a population or species. Geographic Information System (GIS) - a computerized system utilizing satellite and existing databases that gives resource managers the ability to organize and access information (e.g., soil type, water shed, population density) about a specific area. Germination - the growth process of a mature seed, characterized by the emergence of a stem and root. Glaciation - the advance and recession of large masses of slow-moving ice formed by accumulated snow. Global Positioning System (GPS) - a hand-held device that collects data from satellites to provide users with the coordinates of their location on the surface of the earth. Groundwater - subsurface water. Growing Season - the time period, usually measured in days, between the last freeze in the spring and the first frost in the fall. Growing seasons vary depending on local climate and geography. It can also vary by crop, as different plants have different freezing thresholds. Gymnosperms - vascular plants that produce
seeds not enclosed in an ovary. |