Word: elms
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Dates: during 1960-1969
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...twenty-year struggle against the eight-lane highway appeared lost last May, after the Massachusetts Department of Public Works announced its final choice of a route for the Cambridge link of the Belt--Brookline-Elm. Residents of the City had opposed any Belt route through Cambridge, but this route--which would pass near Central Square and displace some 1500 families--had always aroused the most anger...
...long, elm-cast shadows that once drifted across campuses and evoked dreams of Main Street, U.S.A., are fading-the victims of Dutch elm disease. Caused by a fungus and carried by bark beetles, the incurable blight was first detected in the U.S. in 1930 and has since spread inexorably across the nation, leaving unsightly stumps in its path. Although most American elms seem doomed, there is now hope that a hardy new breed of elm will rise to take their place...
Aware that the less attractive Siberian elm is highly resistant to Dutch elm disease, scientists have long attempted to mate it with its American cousin in an effort to produce offspring both disease-resistant and beautiful. Their efforts have been fruitless so far, probably because Siberian elm cells have only half the number of heredity-bearing chromosomes found in the cells of their American cousins. To make the elms compatible, two retired Department of Agriculture scientists, Geneticist Haig Dermen, 71, and Plant Pathologist Curtis May, 70, decided to experiment with colchicine-an antigout drug that has a peculiar effect...
Voluntarily continuing their research at the Agriculture Department's Beltsville, Md., Plant Industry Station-where they are affectionately called "wocs" for "without cost"-Dermen and May patiently placed colchicine on each new bud of Siberian elm seedlings, pruned off leaves and twigs that had normal chromosome counts, and rooted double-chromosome shoots until they had developed plants with only double-chromosome cells. A dozen of these tailored plants, each 15 in. high, were recently shipped to the department's Delaware, Ohio, research station, where they will be raised until they flower and then mated with American elms. That...
...Between Elm, which reaches upwards...