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Plant . Propagation. Sexual Reproduction. Original work from “Applied Technologies” edited and used with permission by Dr. Teri Hamlin. Table of Contents. Introduction to Plant Propagation Sexual Propagation Asexual Propagation Stem, Leaf, Cuttings Layering Separation & Division

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sexual reproduction

Plant

Propagation

Sexual Reproduction

Original work from “Applied Technologies” edited and used with permission by Dr. Teri Hamlin

table of contents
Table of Contents
  • Introduction to Plant Propagation
  • Sexual Propagation
  • Asexual Propagation
    • Stem, Leaf, Cuttings
    • Layering
    • Separation & Division
    • Tissue Culture
    • Budding and Grafting
introduction
Introduction

What is Plant Propagation?

  • The multiplication of plants by both sexual and asexual means
  • Requires a knowledge of plants and how to manipulate them.
  • Can be considered an art-form.
sexual propagation
Sexual Propagation

What is it?

  • The propagation of plants from SEEDS
  • The most common type of propagation
  • In order for one to be successful using this method, one must understand various details about seeds and how they work
slide5

SEEDS

What is a seed?

  • A seed is a whole plant in miniature surrounded by a seed coat.
  • It is a ripened flower ovule.
seed composition
Seed Composition
  • 3 parts of a seed:

Seed Coat

(Protects the embryonic plant.)

Embryo

Endosperm

(The new plant)

(Food storage tissue)

viability longevity
Viability & Longevity
  • If a seed is viable it will germinate and grow normally
  • Longevity is how long the seed will remain viable
  • Influences of viability
    • species ---woody (5-7 years)

--- succulent (1-3 years)

    • Storage Conditions -- 40-45 degrees F
    • Time
in order for germination to take place
In order for germination to take place:
  • The seed must be ripe (ripe when it falls off the tree/plant/bush
  • Dormancy requirement must be met.
dormancy requirements
Dormancy Requirements

Physical Dormancy

Physiological Dormancy

seed coat dormancy
(Seed Coat Dormancy)

Physical Dormancy

  • Overcome by scarification
  • 3 methods

- Mechanical treatment

- Hot water treatment

- Sulfuric Acid treatment

slide11

Physiological Dormancy

  • photodormancy
  • thermodormancy
  • biochemical dormancy
stratification
Stratification
  • Seed must experience:

1. warm, dry period

2. cool, moist period --- 60-90 days at 40-45 degrees F

3. warm moist period

selection of seeds
Selection of Seeds
  • ID locally grown seeds
  • Select certified seeds

-have been tested for germination ability and purity.

  • Choose hybrid seeds for greater vigor
  • Select primed seeds
indirect vs direct seeding
plants sown indoors

plants must be transplanted

tomatoes, peppers, eggplant

seeded directly into permanent growing area

most economical method

corn, melons, beans, beets, peas, etc..

Indirect vs. Direct Seeding
slide15

Plant

Propagation