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Unformatted text preview: Plant Growth Principles of Biology I I- GSU Leege Plant Growth: Overview Annual vs. biennial vs. perennial-- annual – blooms once a year, then dies--biennial – blooms once after 2 years then dies, or blooms once, then again in 2 years, and dies--annual – blooms every year, doesn’t die Some plants grow for one season, others for many Examples Pansy (annual) Foxglove (biennial) Century plant (perennial) Plant Growth: Overview Growth occurs from perpetually young tissues in specific locations Apical meristems (primary growth) Lateral meristems (secondary growth) Primary Growth (increase in length) Location Apical meristem of root tip, buds of shoots Function of primary growth Root: to acquire more moisture, nutrients Shoot: to acquire more light, CO2 Only primary growth occurs in monocots Primary Growth: Roots Root structure Root cap Apical meristem Zone of cell division Zone of elongation...
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This note was uploaded on 08/21/2008 for the course BIOL 2108 taught by Professor Leege,gleason during the Spring '08 term at Georgia Southern University .
- Spring '08