University of California
Fruit and Nut Research & Information Center
How-to Guides & Tools
From Ken Shackel, Professor, Dept. of Plant Sciences, UC Davis
- The Pressure Chamber (The Bomb)
This hand-pump device is used to measure water potential in leaf stems. It provides directions for use, including step-by-step photo sequence, and details of application to prunes/dried plums.
From Kitren Glozer, Project Scientist, Dept of PLant Sciences, UC Davis
- Dynamic Model & Chill Accumulation
An illustrated guide to obtaining chill data using online data sources or your own datalogger, and using the Dynamic Model to calculate Chill Accumulation as "Chill Portions." - Using The Pull Force Gauge: an FRF Guide
An illustrated guide to measuring Fruit Removal Force (FRF) using a hand-held gauge, a software package for your Windows-based computer, and an interface system. - Leaf Area Measurement Alternatives
A guide to accurately measure leaf area using only a digital camera and a frame to hold your leaves.
From Louise Ferguson, UC Cooperative Extension Specialist, Dept. of Plant Sciences, UC Davis
- California Pest Control Districts
Information and manuals provided by the Collaborative Project for Guidance in the Formation of Pest Control Districts.



