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A rose is a rose ... no longer.

A rose is a rose . . . no longer

By any other name, a patented hybrid rose just isn't the same.Worth $44 million a year, the breeding and selling of thousands of rose plant varieties can lead to concerns about patent rights. An identification process approved by the U.S. Department of Agriculture (USDA) uses scanning electron microscopy, with results that should solve any questions regarding a particular rose's ancestry.

Developed by Charles R. Krause, a plant pathologist at theUSDA laboratory in Delaware, Ohio, the technique thus far has characterized 20 rose hybrids on the basis of such leaf traits as shape of openings, hairs and wax arrangement. For example, the photo on the right shows the Antigua rose, with its recessed leaf pore; the photo on the left shows the Promise rose's own characteristic pore. Krause says the technique could be used on other plants.
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Title Annotation:new technique for identifying rose hybrids
Publication:Science News
Date:Mar 21, 1987
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