'Seed dormancy' presentation slideshows

Sexual Propagation

Sexual Propagation. Mr. Wilson Uintah High School. Objectives. Students will describe the elements of propagation and the techniques and practices used for propagation. Define Propagation. List the two main types of plant propagation. Define germination. Identify the life cycle of plants.

2.42k views • 116 slides

Concept 39.2: Plant hormones help coordinate growth, development, and responses to stimuli

Concept 39.2: Plant hormones help coordinate growth, development, and responses to stimuli. Hormones are chemical signals that coordinate different parts of an organism. The Discovery of Plant Hormones.

987 views • 84 slides

Seed Germination: Signal Response

Seed Germination: Signal Response. Dr. Caren Chang Dept of Cell Biology and Molecular Genetics University of Maryland, College Park carenc@umd.edu 301-405-1643 (office phone). A ppropriate responses to internal and external signals are critical for plant growth, development and survival.

2.24k views • 46 slides

Plant Hormones Ch. 39

Plant Hormones Ch. 39. I. Plant Hormones- A compound produced by one part of the plant Hormones- A compound produced in one ar ea of an organism and has an affect on an another area. A. Plants grow toward the light 1. Phototropism- growth toward or away from the light

826 views • 42 slides

Chapter 38 Reading Quiz

589 views • 41 slides

Growing from Seed

Growing from Seed. What is a seed? matured ovule. What is a fruit? matured ovary. What is the purpose of seeds? variability of offspring dispersal of offspring away from parent survival of plant through difficult conditions. How is growing from seed different?

736 views • 33 slides

Wheat by Thomas Hart Benton (1967), from The Emergence of Agriculture, B. Smith

Molecular Data and Crop Evolution Graduate Seminar. Wrap-up and summary. Wheat by Thomas Hart Benton (1967), from The Emergence of Agriculture, B. Smith. Crop evolution is a special and difficult case in systematics.

425 views • 33 slides

Sexual Propagation

Sexual Propagation. Objectives. Objective 17.1 Define Propagation. Objective 17.2 List the two types of plant propagation. Objective 17.3 Define germination. Objective 17.4 Identify the life cycle of plants. Objective 17.5 Identify the parts of a seed. Objective 17.6 Define seed dormancy.

772 views • 33 slides

Overcoming Challenges for Reclamation Success

502 views • 25 slides

Understanding Plant Growth Regulators

825 views • 22 slides

363 views • 21 slides

Abscisic Acid and Its Role in Seed Dormancy

Abscisic Acid and Its Role in Seed Dormancy. By: Laura Kenney. Introduction. ABA is a plant hormone in vascular plants and is also found in mosses and fungi

1.09k views • 20 slides

Angiosperm Plant Reproduction (Chap. 28)

Angiosperm Plant Reproduction (Chap. 28) . Know the following in a typical plant: sepal, petal, stamen, anther, filament, pollen, pistil, stigma, style, ovule, and ovary . Sexual Reproduction. Pollination the transfer of pollen from an anther to a stigma

1.24k views • 15 slides

Plant Hormones

500 views • 11 slides

Abscisic Acid

James Jordan April 3 2002. Abscisic Acid. History And Discovery of Abscisic Acid. Abscisic acid or ABA was found identified 1953 by Bennet-Clark and Kefford as an inhibitory compound. In 1963 the substances was crystallized and purified. It was then named Abscisic Acid by Ohkuma.

2k views • 11 slides

Chapter 8 Seed Germination

Chapter 8 Seed Germination . BSAA Daily Vocab List . Day 1 TO complete after your test Beginning on page 155. Achene Aggregate fruit Aleurone layer Amylase Berry capsule. Day 2. Caryopsis Coleoptile Cotyledon Dehiscent fruit Dicotyledon Dissemination. Day 2 . Drupe Embryo

259 views • 10 slides

Chapter 8 Seed Germination

Chapter 8 Seed Germination . BSAA Daily Vocab List . Day 1 TO complete after your test Beginning on page 155. Achene Aggregate fruit Aleurone layer Amylase Berry capsule. Day 2. Caryopsis Coleoptile Cotyledon Dehiscent fruit Dicotyledon Dissemination. Day 3 . Drupe Embryo

280 views • 10 slides

KEY CONCEPT Seeds disperse and begin to grow when conditions are favorable.

KEY CONCEPT Seeds disperse and begin to grow when conditions are favorable. Animals, wind, and water can spread seeds. Seeds dispersed by animals can have nutritious fruits or fruits that cling. Cypselae. Double samaras. Seeds dispersed by wind can have wing- or parachute- like fruits.

237 views • 9 slides

Aleurone

Seed dormancy is important for plant survival. It ensures that seed will germinate only under optimal light, temperature, and moisture. Aleurone. Endosperm. Scutellum (cotyledon). Seed dormancy also gives additional time for seed dispersal over distances. Radicle.

499 views • 8 slides

Conclusions GA 3 increases mean fraction germination of seeds independent of seed age or concentration

The Effect of High Concentrations of GA 3 and Seed Age on Germination of Silene latifolia Allison Amore, Meredith Harry, William Wood Department of Biology, Davidson College. Age Decreases Viability. Conclusions

164 views • 1 slides