Answers to Questions: answers to a variety of questions you might have about avocados

Introduction: A short introduction to avocados and production in California

Dry Matter% How to determine oil content (a measure of how ripe your avocado is)

Early history of the avocado in California. History up through the early 1900s.

Fruit colors: Some of the different colors found in avocados.

Fruit shapes: Avocados come in a variety of shapes, some of which are shown on this page.

Minimum Maturity Standard: The minimum percent dry matter avocado varieties must reach to be commercially released.

Ratios: Determining the ratio of seed, skin, and flesh.

Suggested range of nutrients for leaf analysis.

Three avocado groups. Learn about the three groups of avocados: West Indian, Guatemalan & Mexican.

Tree heights. Hass avocado tree heights as influenced by rootstock variety.

What kind of fruit is an avocado?

What's in a name? A short history of how the "avocado" got its name.

Video: Pruning Small Avocado Trees by Dr. Piet Stassen.

Video: Producing Clonal Avocados by Diane Parker


Avocado: Botany, Production and Uses. This book is now available.


Subtropical Fruit News: covering avocados, citrus and other subtropical fruits.