Master Hormonal Control of Seed Germination fast ⚡ – clear explanations, OCR-aligned.
You’ll cover
• How germination depends on the embryo synthesising and releasing gibberellin after water uptake.
• The role of abscisic acid (ABA) in maintaining seed dormancy.
• How ABA inhibits germination by suppressing the production of hydrolytic enzymes.
• How gibberellin stimulates the production of amylase and other hydrolytic enzymes.
• The sequence of events leading to mobilisation of stored nutrients in the endosperm.
• How hormone interactions control whether seeds remain dormant or germinate.
What’s included
• Labelled diagram showing the structure of a cereal grain (embryo, radicle, plumule, endosperm, aleurone layer).
• Diagram illustrating how ABA inhibits germination in cereal grains.
• Diagram showing the mechanism of gibberellin-stimulated germination.
• Exam-style explanation boxes demonstrating how ABA and gibberellin control germination.
• Table summarising experimental evidence for gibberellin control of germination.
Format
Web-based textbook topic. Mobile/desktop friendly. Access with no time limit, updates included.