AZ Master Gardener Manual: Basic Botany

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AZ Master Gardener Manual: Basic Botany
Arizona Cooperative Extension
College of Agriculture
The University of Arizona

Chapter 1
Basic Botany, Physiology, and Environmental Effects on Plant Growth
In order to gain a working knowledge of horticulture, it is necessary to understand the structure and function of plants and the environmental factors that affect plant growth. In the greatly diversified kingdom of plants, all flowering plants have certain structures and functions in common. These similarities are the basis for this chapter. Higher flowering plants are divided into two groups, monocotyledons (monocots) and dicotyledons (dicots). Although monocots and dicots are similar in many ways, differences with respect to number of seed leaves, number of flower parts, leaf vein pattern, and root structure exist. In addition, physiological dissimilarities exist which result indifferent responses to herbicides.

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