Chances are, what you as a fruit grower know about the science of fruit has been discovered in the last 40 years, thanks to the work of just a few researchers.
Early this spring, a half dozen of these key researchers—tree fruit physiologists—came together for a special Cornell University In-Depth Fruit School in Geneva, New York. They spent a full day talking to fellow scientists and about 160 growers from several states about what they’d learned by their work.
The event was organized by Cornell pomologist Dr. Terence Robinson, who realized, he said, “We are coming to the end of an era. This could be a unique occasion—once in a lifetime—to salute the accomplishments of men who are coming to the end of their careers.
“They have really been leaders,” he said. “They have really moved fruit growing forward.”
Robinson conceded that he didn’t apply a scientific process to choosing the six people who spoke that day. “I’m the one who picked them,” he said. “I picked people I’ve looked up to all my career— mentors from the class ahead of us,” he said.
At the end of the day, Robinson posed one question to each of the scientists that turned out to be the capstone of the day. “Each of these growers have paid a hundred bucks to hear what you have to say,” he told them. “Can you give them a summary sentence, a nugget, they can take home with them?”
The first to answer was Dr. Ted DeJong, the University of California, Davis, researcher who has spent his career helping growers understand peach production. He offered three nuggets.
• It is truly the end of an age. “For the first 15 years after I started, I had fully paid staff. That allowed me to do things no researcher will ever be able to do again. We had enough resources, enough money. Now I have no paid staff other than what I can raise the funds to support.”
Researchers today spend much of their time writing grant proposals, many of which don’t become funded, he said. That diverts their time from actual research, and staff shortages still further reduce their capacity to discover. Technology—computers and dataloggers—has helped. “Technology will never take the place of human resources,” he added.
• Trees are collections of organs—shoots, leaves, roots, and fruit—all of which make “decisions” that affect the tree’s performance, and the tree is basically just a structure that holds the organs, he said.
“People think differently about trees now than they did in the past,” he said. “Genes function at the organ level, and each organ makes decisions. Trees don’t decide to shed fruit. The fruit gives up.”
• Fruit growing should be regarded as more of a science than an art. “There are a lot of scientific principles involved in growing fruit, and we know many more of them now than we once did,” he said.