Fargo, N.D. ? Sunflower farmers say a German study looking into possible links between the plant and AIDS medicine may grab headlines, but they think it’s too early to increase production of the crop.

Scientists at the University of Bonn say a substance used by sunflowers to fight off a plant disease could be used in new drugs to prevent HIV, the virus that causes AIDS, from reproducing.

The German researchers have patented their method and are looking for private partners to manufacture the substance, according to the Bonn University Web site. It remains to be seen whether the findings would hold up in clinical trials, a statement said.

The study is not yet on the radar at the National Institute of Allergy and Infectious Diseases, a spokesman for the federal agency said.

“Right now it’s all very preliminary,” said Mike Clemens, a sunflower farmer from Wimbledon, in eastern North Dakota. “It’s pretty exciting to hear the news, but you don’t know if this is something that will take 10 acres, 1,000 acres or 10,000 acres.”

Other farmers also are cautious.

“The bottom line is whether it will do much to increase acreage,” said Dean Sonnenberg, a sunflower producer from northern Colorado. “My guess is that it won’t have much of an impact.”

Kansas is among the top five states for sunflower production.

Researchers said they discovered the link while they were looking at antifungal properties the sunflower uses to fight off sclerotinia, a disease commonly known as white mold. Sunflower groups spent about $500,000 last year to fight the mold, said Larry Kleingartner, executive director of the National Sunflower Assn.

“I think it’s really premature to say the study will lead to more production,” said Roger Johnson, North Dakota’s agriculture commissioner. “My sense is that it’s pretty early-stage research.”

Johnson said the findings highlighted the need for the United States to spend more money on agricultural research and technology.

“We are being sort of a left-behind country with new research,” Johnson said. “It’s really kind of scary.”