Original video: https://youtu.be/YQbRkgFiUsQ
Delivered on: MARCH 2021
This comprehensive video explores the fascinating world of seeds, covering their structure, diversity, and the intricate processes involved in germination. 🌿 We'll delve into the various adaptations of seeds, their role in plant propagation, and the factors that influence their dormancy and germination.
What you'll learn:
Seed Development: We'll trace the development of seeds from the fertilization of flowers to the formation of mature seeds, highlighting the role of pollination and embryo development.
Seed Diversity: Explore the incredible diversity of seeds in the plant kingdom, from the tiny dust-like seeds of orchids to the massive coconuts, and how their size and structure relate to their dispersal mechanisms.
Seed Structure: We'll examine the internal and external anatomy of seeds, including the seed coat, embryo, and food reserves (endosperm or cotyledons).
Monocot vs. Dicot Seeds: Understand the key differences between monocot and dicot seeds, focusing on their cotyledon number and germination patterns.
Seed Dormancy: Learn about seed dormancy, a state of suspended animation that allows seeds to survive unfavorable conditions, and the various factors that trigger dormancy.
Breaking Seed Dormancy: Discover the different methods for breaking seed dormancy, including scarification, stratification, and exposure to light or chemicals.
Seed Germination: We'll explore the step-by-step process of seed germination, from water imbibition and enzyme activation to radicle emergence and seedling establishment.
Types of Germination: Understand the difference between epigeal and hypogeal germination, and how they relate to the growth of the hypocotyl and epicotyl.
Seeds are for propagation
Protect the zygote against physically injury.
Store foods for seedling- before it becomes independent.
Remain dormant to survive harsh environment.
Disperse the seeds to capitalize on their genetic variability.
Respond to environment cues and germinate at the right time and place.
Keywords: Seed biology, seed development, seed structure, seed diversity, seed dormancy, seed germination, epigeal germination, hypogeal germination, monocots, dicots, endosperm, cotyledons.
Attribution 4.0 International — CC BY 4.0 - Creative Commons
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