The Conditions Necessary for Germination (Leaving Cert Agricultural Science): Flashcards
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Practise the cards
10 cards from this deck
Definition of germination
Definition of germination
Process where a dormant seed awakens and begins to grow into a new plant
Radicle
Radicle
First root that emerges during germination
Three essential conditions for germination
Three essential conditions for germination
Water, oxygen, and suitable temperature
Role of water in germination
Role of water in germination
Softens seed coat and triggers chemical reactions for growth
Role of oxygen in germination
Role of oxygen in germination
Needed for respiration to release energy for growth
Role of temperature in germination
Role of temperature in germination
Enables chemical processes; most seeds need moderate temps
Test tube A setup (germination experiment)
Test tube A setup (germination experiment)
Dry cotton wool, no water - tests if water is essential
Test tube C setup (germination experiment)
Test tube C setup (germination experiment)
Boiled water + oil layer blocks oxygen - tests oxygen need
Test tube D in germination experiment
Test tube D in germination experiment
Control group with all 3 conditions - shows germination
Limiting factors in germination
Limiting factors in germination
If one essential condition missing, germination cannot occur