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plant_biology [2008-05-27 13:58] – nik | plant_biology [2008-07-09 13:53] (current) – nik | ||
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===== plants ===== | ===== plants ===== | ||
+ | |||
+ | ==== general ==== | ||
+ | * Plantengids / Plant guide / Guide des plantes / Pflanzenführer > http:// | ||
+ | |||
+ | ==== nutrients... ==== | ||
+ | |||
+ | | **non-mineral** | hydrogen (H), oxygen (O), & carbon (C) || | ||
+ | | **mineral** ||| | ||
+ | | **primary nutrients** | nitrogen (N), phosphorus (P), and potassium (K). | usually lacking from the soil as plants use large amounts for growth and survival. | | ||
+ | | **secondary nutrients** | calcium (Ca), magnesium (Mg), and sulfur (S). | usually enough in the soil | | ||
+ | | **micronutrients** | boron (B), copper (Cu), iron (Fe), chloride (Cl), manganese (Mn), molybdenum (Mo) and zinc (Zn). || | ||
+ | |||
==== plant development ==== | ==== plant development ==== | ||
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* hormones / growth regulators | * hormones / growth regulators | ||
+ | |||
+ | | **Hormone** | **Function** | **Location** | | ||
+ | | Auxins (IAA)* | stem elongation \\ root formation | ||
+ | | Cytokinins | cell division \\ differentiation | produced in roots | | ||
+ | | Gibberellins (GA)* | stem & internode elongation \\ seed germination| produced in apical portion of root & shoot | | ||
+ | | Ethylene* | abscission fruit ripening | produced in leaves, stems & young fruits | | ||
+ | | Abscisic Acid | supression of bud growth \\ stomatal opening \\ leaf senescence | mature leaves, fruits & root caps | | ||
+ | |||
+ | * horticultural/ | ||
+ | |||
+ | via http:// | ||
==== movement ==== | ==== movement ==== | ||
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[[Plan Plant Planet]] | [[Plan Plant Planet]] | ||
+ | |||
+ | * the gift of green (short movie): http:// | ||
corals actively change their local climate [[Coral Local Climate]] | corals actively change their local climate [[Coral Local Climate]] | ||
[[HPI]] | [[HPI]] |