Accession Number : AD0754590
Title : Aquatic Plant Control Program. Technical Report 2. Response of Aquatic Weeds to Laser Radiation.
Descriptive Note : Final rept.,
Corporate Author : ATHENS COLL ALA DEPT OF BIOLOGY
Personal Author(s) : Couch,Richard W.
Report Date : DEC 1972
Pagination or Media Count : 72
Abstract : Preliminary experiments in 1968 indicated that water hyacinths and possibly other aquatic plants could be controlled by 10.6 micron laser radiation. Two effects were noted: an immediate plasmolysis directly proportional to laser energy and a secondary effect at lower levels of irradiation that resulted in death of the plant after a period of time. Studies made in 1969 indicated that split applications of laser energy were not more effective than continuous treatment. Plant count evaluations were significant at a minimum level of 0.5 joules per sqcm(J/sgcm). Histological examination of irradiated leaf tissue did not show extensive cell damage due to laser treatment. Studies made in 1970 indicated that twice-irradiated plants were affected at a level of about 70J/sqcm. (Author)
Descriptors : (*PLANTS(BOTANY), PEST CONTROL), (*LASERS, PLANTS(BOTANY)), RADIATION EFFECTS, PLANT TISSUE, CELLS(BIOLOGY), HISTOLOGICAL TECHNIQUES, GROWTH(PHYSIOLOGY), CARBON DIOXIDE, NEODYMIUM, PHOTOSYNTHESIS
Subject Categories : Lasers and Masers
Distribution Statement : APPROVED FOR PUBLIC RELEASE