STOCKSCH 100 Lecture Notes - Lecture 18: Senescence, Germination, Heredity
30 Oct 2016
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Document Summary
Growth is a non-reversible increase in plant size and volume: occupies more physical space, sometimes accompanied by increase in dry weight. Plant sometimes loses dry weight when adding volume by using food stored in roots: environment regulates/influences growth. Development is a change in plant form: the plant looks different, example: germination mature plant, senescence process of deterioration of cells that leads to plant death. What is the environmental trigger that causes carrots to flower: cold/cool temperatures. Environment: influences kind of growth (vegetative or reproductive), rate of growth, how big the plant gets (total volume of plant, primary conditions. Most plants need a medium (some kind of soil) in which to grow that provides stability. Essential nutrients: carbon, hydrogen, oxygen, phosphorous, potassium, iodine, nitrogen, sulfur. Need suitable temperature range day and night. Need co2, oxygen, light and water: secondary conditions that can affect plant. Growth and development are influenced by: genetics: heredity determines potential (ex.
