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| plant_biology [2008-05-27 14:57] – 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* | | + | | **Hormone** | **Function** | **Location** | |
| - | | Auxins (IAA)* | stem elongation | apical dominanace | + | | Auxins (IAA)* | stem elongation |
| - | | |root formation | produced in shoot | | + | | Cytokinins | cell division |
| - | | |apical meristem | + | | Gibberellins (GA)* | stem & internode elongation |
| - | | Cytokinins | cell division | produced in roots | | + | |
| - | | | | differentiation | | | + | |
| - | | Gibberellins (GA)* | stem & internode elongation | produced in apical portion of root & shoot | | + | |
| - | | | seed germination | | | + | |
| | Ethylene* | abscission fruit ripening | produced in leaves, stems & young fruits | | | Ethylene* | abscission fruit ripening | produced in leaves, stems & young fruits | | ||
| - | | Abscisic Acid | supression of bud growth | + | | Abscisic Acid | supression of bud growth |
| - | | | stomatal opening | + | |
| - | | | leaf senescence | | | + | * horticultural/ |
| - | *most horticultural/ | + | |
| via http:// | via http:// | ||
| + | |||
| ==== movement ==== | ==== movement ==== | ||
| see > [[plant movement]] | see > [[plant 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]] | ||
nik