Mike Chapman, chief executive of Horticulture New Zealand, which runs the national competition, said the event developed skills and fostered leadership.
"It's an important part of retaining top talent in horticulture, which is a rapidly growing industry making a significant contribution to New Zealand's economy."
Bay of Plenty MP Todd Muller, who judged the speech competition with Kiwifruit Growers Incorporated chairman Doug Brown, encouraged competitors to seek out mentorship from those with experience in the horticultural industry.
"There is an extraordinary number of people with an enormous amount to give," he said, adding that the true success of the industry came from the marriage of those experienced in both the science and the art of growing.
Kate Longman, chairwoman of Bay of Plenty Young Fruit Grower Upskilling Incorporated, said it had been fantastic to see so many organisations recognise the benefits of the competition.