Organic Plant Production
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Kartei Details
| Karten | 185 |
|---|---|
| Sprache | Deutsch |
| Kategorie | Biologie |
| Stufe | Grundschule |
| Erstellt / Aktualisiert | 15.04.2015 / 26.05.2015 |
| Lizenzierung | Keine Angabe (Prof. Sabine Gruber) |
| Weblink |
https://card2brain.ch/box/organic_plant_production
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| Einbinden |
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R: Plant organs and input/output (pic)
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Difference between plant growth and plant development
Plant growth = increase in plant biomass
Plant development = life cycle / different life stages of a plant (vegetative --> reproductive)
vegetative and reproductive plant parts which are harvested
vegetative: tubers, biomass
reproductive: grains
Growth factors of a plant
- light (intensity)
- temperature
- water
- nutrients
- CO2
Development factors of a plant
- light (wave length, photoperiodism=duration)
- temperature (vernalization (vegetative>>reproductive), come plants need cool temperature)
(- water: germination)
Different seed sturctures
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Difference between germination and emergence
Germination: Processes start in the seed, enzymes are activated, first root is 2mm
Emergence: Once you can see a part of the plant (above the soil)
What is preferred? Fast or slow emergence? Why?
Fast
- better competiveness against weeds
- fast resistance against pest and diseases
- homogenous plant stand
