March 28, 1984

The lead participant in the Seabrook nuclear power project in New Hampshire bowed to intense pressure from the other owners yesterday and said it would agree, under certain conditions, to cancel the second Seabrook reactor. This move by the Public Service Company of New Hampshire appeared to clear the way to scrap Unit 2, a 1,150-megawatt facility that is 23 percent complete and has already cost a consortium of 16 New England utilities about $2.5 billion. Public Service owns 35.6 percent of the project, and until yesterday it had consistently vetoed efforts by the other owners - particularly utilities in Massachusetts, Maine and Connecticut - to cancel the project. No Change in Basic Stand Dallas Hamerlinck, vice president for public affairs of Public Service, said the company's position favoring completion ''hasn't changed.'' But he added, ''You sometimes get to a point when you can't go on.''

POTATOES, every day. Black sour bread, every day. Mushrooms, always. Mushrooms, because we have had many wars, and they replaced meat then. Mushrooms have been the nation's food in hard times.'' Helene Celmina was describing the staples of her native Latvia, one of the republics of the Soviet Union, bordering the Baltic Sea in northeastern Europe. ''There are always mushrooms, because we have many forests,'' she continued as she stirred a skillet bubbling with her version of Latvian-style mushrooms, the earthy aroma of a rain-washed forest rising in the kitchen. A Recipes are on page C8. tall woman with straight auburn hair and a clear gaze, Mrs. Celmina is fluent in four languages, including English.

Senator Gary Hart scored a decisive victory last night over Walter F. Mondale and the Rev. Jesse Jackson in Connecticut's Democratic Presidential primary, completing a sweep of primaries and caucuses in the six New England states. According to complete but unofficial returns, Mr. Hart had 115,915 votes, or 54.9 percent; Mr. Mondale had 63,963 votes, or 30.3 percent, and Mr. Jackson had 25,833 votes, or 12.2 percent. That translated into a preliminary estimate of 33 delegates for Mr. Hart, 18 delegates for Mr. Mondale and one for Mr. Jackson. Mondale Holds Delegate Lead Overall, however, Mr. Mondale still retained his big lead in convention delegates. The latest tabulation by United Press International, Connecticut included, showed Mr. Mondale with 698 delegates, compared with 429 for Mr. Hart and 87 for Mr. Jackson, with 1,967 delegates needed for the nomination.

A headline last Friday on a dispatch from Stanford, Calif., about plagiarism allegations gave an incorrect title for Kenneth Melmon, who is under investigation by a university ethics committee and two publishing concerns. As correctly identified in the article, Professor Melmon is chairman of Stanford Medical School's department of medicine, not the school's dean.

An article on the Washington Talk page yesterday about young activists incorrectly identified the editor of People & Taxes, a monthly publication of Public Citizen, which is affiliated with Ralph Nader. The editor is Tyler Bridges.