The profession of plant technologist is relatively new and was founded about six years ago. The training to become a plant technologist takes 3 years and is a classical apprenticeship in the dual system (practice & vocational school). You conclude an apprenticeship contract with your training company and go to the blocked lessons in the federal subject class of the vocational school in Einbeck. If you already have your Abitur in your pocket, you have the option of shortening your training to a duration of 2 years. Instructor for this interesting occupation is on property Bütow Denis Behrendt.
You can find more information here: https://www.die-pflanzenzuechter.de/berufswelten/ausbildung/pflanzentechnologe