FBS 31_INTRODUCTION

Study of processes that take place within a plant

Plant Physiology

Closely related field to Plant physiology that deals with the structure of plants

Plant morphology

Closely related field to Plant physiology that deals with environmental interactions

Plant ecology

Closely related field to Plant physiology that deals with the biochemistry of plants

Phytochemistry

Closely related field to Plant physiology that deals with cell biology

Molecular biology

What do you call the scientists interested in the nutrition of plants, influence of the environment upon plant processes, the products of plant activities, and the sequence of events that results in growth and development of plants?

Plant physiologists

Environmental conditions that Plants respond to

Light

Temperature

Gravity

Nutrient and water availability

Disease

What are the activities of many plant species?

Seed germination

Growth

Flowering

Opening and closing of stomata

Tropism

What plants do?

Find water and nutrients and distribute them within the plant

Photosynthesis

Respiration

Grow and reproduce

Protect themselves from herbivores and pathogens

The Role of Plant Physiology in the Forest

• To learn how plants grow and how their benefits can be maximized

• Common forestry practices like leaf and branch pruning have physiological basis

Defined as a community of plants dominated by trees

Forest

A result of physiological processes of the plant

Forest growth

A process of irreversible increase by cell division and enlargement

Growth

The process involving conversion of reserve materials into structural materials.

Growth

The process of qualitative change in plants over time that is controlled by environmental and genetic factors.

Development

The production of new individual plants or offspring by sexual or asexual means.

Reproduction

Processes of Plant Growth

Photosynthesis

Respiration

Absorption

Transpiration

Translocation

Reproduction

The food and manufacturing process in green plants that combines carbon dioxide and water in the presence of light to make sugar and oxygen.

Photosynthesis

The process through which plant leaves, stems and roots consume oxygen and give off carbon dioxide.

Respiration

The process by which plant roots take in water and air.

Absorption

The process by which plants lose water from leaves and stems by way of evaporation.

Transpiration

The process by which food and nutrients are moved within a plant from one plant part to another.

Translocation

The plant process that increases plant numbers.

Reproduction

Activity of many plant species that leads to seedling growth

Seed germination

Activity of many plant species that leads to flowers

Flowering

Activity of many plant species that leads to formation of new plant structures

Growth

Activity of many plant species where tiny openings on leaves facilitate gas exchange

Opening and closing of stomata

Activity of many plant species when a plant moves in response to an external stimulus in the environment

Tropism