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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| plant_biology [2008-05-27 15:03] – 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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| | Auxins (IAA)* | stem elongation \\ root formation | | Auxins (IAA)* | stem elongation \\ root formation | ||
| | Cytokinins | cell division \\ differentiation | produced in roots | | | Cytokinins | cell division \\ differentiation | produced in roots | | ||
| - | |||
| | Gibberellins (GA)* | stem & internode elongation \\ seed germination| produced in apical portion of root & shoot | | | Gibberellins (GA)* | stem & internode elongation \\ seed germination| produced in apical portion of root & shoot | | ||
| | Ethylene* | abscission fruit ripening | produced in leaves, stems & young fruits | | | Ethylene* | abscission fruit ripening | produced in leaves, stems & young fruits | | ||
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| [[Plan Plant Planet]] | [[Plan Plant Planet]] | ||
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| + | * 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]] | ||