SYMPOSIA PAPER Published: 01 January 1999
STP14278S

Spray Droplet Size and Concentration of Metsulfuron-methyl Affects Ethylene Production in Oranges

Source

Metsulfuron-methyl has been suggested as a new experimental abscission chemical for harvesting Florida citrus fruit. The objective of the research was to determine the effects of spray droplet size and active ingredient (a.i.) concentration on the efficacy of the product.

‘Hamlin’ and ‘Valencia’ orange explants (fruit with peduncle) were sprayed using different droplet sizes or dipped in metsulfuron-methyl solution at three concentrations. Treatment solutions also contained adjuvants Kinetic and Buffer Xtra. The treated explants were stored under constant temperature and humidity conditions and assayed at 3, 5, 7, 9 or 10 days. The metsulfuron-methyl induced internal ethylene was measured by gas chromatography and used as response variable.

Droplet size, a.i. concentration and measurement day had significant effects on ethylene production. Although the response was highly variable, ethylene production tended to increase with droplet size and metsulfuron-methyl concentration. Overall, the variability of response increased at the higher concentrations.

Author Information

Salyani, M
University of Florida, Citrus Research and Education Center, Lake Alfred, FL
Burns, JK
University of Florida, Citrus Research and Education Center, Lake Alfred, FL
Kender, WJ
University of Florida, Citrus Research and Education Center, Lake Alfred, FL
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: E35
Pages: 3–14
DOI: 10.1520/STP14278S
ISBN-EB: 978-0-8031-5411-7
ISBN-13: 978-0-8031-2622-0