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Exploring Fast Plant Life Cycle: Lessons in Genetics and Seed Development

Dive into the 35-40 day life cycle of Fast Plants from seedling to new generation seedling. Learn about flowering, genetics, seeds, roots, stems, leaves, and flowers, with fascinating details on monocots and dicots. Discover the distinctive traits of anthocyanin, cotyledons, and flower parts in this educational journey.

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Exploring Fast Plant Life Cycle: Lessons in Genetics and Seed Development

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  1. Wisconsin Fast Plants Lesson 5

  2. 1. General Information • Life cycle lasts 35-40 days • Cycle is from seedling to new generation seedling • Let us take a look at the 1st 28 days of the fast plant cycle • Needs a constant source of bright light • The tips must be within 5 cm of the light source to be effective.

  3. 2. Flowering • Occurs 13 days after germination • Germination: process in which a seed or spore emerges from a period of dormancy – it sprouts • Seeds are harvested 20-25 days after pollination • Harvested: full growth

  4. 3. Genetics • Anthocyanin: purple pigment of fast plant • Color seen in the leaves and stems • Triggered by sunlight • Dominant genetic trait • Dominant: capital letter; ex “P” – means you see the trait • Recessive: lowercase letter; ex “p” – means you do not see the trait

  5. 4. Seeds • Monocots • Grasses (corn, rye) & grains (rice, wheat) • Protective seed coat • 1 cotyledon: seed leaf in embryo • Endosperm surrounds embryo • Endosperm – food storing tissue • Cotyledon stays below ground when seed sprouts • Absorbs nutrients from endosperm • Transports nutrients to seedling

  6. B. Dicots • Beans, peanuts, peas, apples, broccoli; shrubs; trees • Protected by seed coat • 2 cotyledons • At full growth, cotyledons emerge from soil • Seeds separate into two halves; monocots do not

  7. 5. Roots • Monocots: fibrous roots - spread and branch out under ground • Anchor plant • Dicots: 1 long, thick root (taproot) • Small, secondary roots grow from taproot

  8. 6. Stems • Tubes that carry food downward and water and nutrients upward in a plant • Monocots: scattered throughout stems • no pattern • Dicots: tubes arranged in a ring around center of stem

  9. 7. Leaves • Monocots: parallel veins • Dicots: veins intersect forming branching pattern

  10. 8. Flowers • Monocots: flower parts in multiples of 3 • Ex: 3 pedals, 3 sepals, 6 stamens • Ex: Lilies, Spiderwort, Dayflower, Bamboo • Dicots: Flower parts varied; multiples of 2, 4 or 5 • Ex: Rose, Bellflower, Fast Plant, Calendula Plant

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