Nutrient concentration in sap extracts of HLB-infected trees

Potential Applications of Multiband Spectroscopy and Hyperspectral Imaging for Detecting HLB Infected Orange Trees

Acknowledgments. This project was supported by a grant from the Florida Citrus Production Research Advisory Council. Authors would like to thank Sherry Buchanon at the Citrus Research and Education Center, Lake Alfred, FL, for her help in data collection. We would also like to extend our thanks to the crews of Lykes Bros. Inc., Lake Placid, FL, SWFREC at Immokalee and Southern Gardens Citrus ne...

Misunderstanding sap ascent in trees

Trees transport water from their roots to their leaves thanks to an efficient but vulnerable vascular system. Assessing the vulnerability to drought of the xylem and its ability to recover from failure are not an easy task but recent findings demonstrate that, contrary to what is commonly believed, hydraulic failure and embolism repair are not routine in trees. Trees are amazing organisms. They...

Measuring the Sap Flow of Eucalyptus Trees

We describe the design and implementation of Savia, a sensor network system for measuring the sap flow of eucalyptus trees. Unlike prior sensor network systems, which generally take a vertically integrated approach and build everything from scratch, Savia is built out of several existing sensor systems. The difficulties we encountered when combining these systems demonstrate why a vertically in...

Running head: Sap flow in riparian trees Transpiration of cottonwood/willow forest estimated from sap flux

Influence of environmental factors on the sap flux density of mango trees under rain-fed cropping systems in West Africa

Xylem sap flux density (Fd) was measured, on a 43-year-old (mature) and three 4-year-old (young) mango (Mangifera indica L.) trees, using Granier-type probes. The relative influences of environmental variables were examined under well-watered condition. Circumferential variation in Fd was also investigated by placing sensors on the north, south-west and south-east sides of the mature tree. Sap ...