"An apple a day keeps the doctor away." Whether there is any truth in this old saying is debatable, but one thing is clear: apples are healthy because they are rich in vitamins, minerals and fiber. With a per capita consumption of 25 kilograms, apples are among the Germans' favorite fruits. Cultivation also shows its popularity: apples thrive on more than half of the fruit-growing areas in Germany. One of the most traditional fruit-growing areas, the Alte Land, has become a testing ground for researchers in recent years for an apple innovation called Selstar.
Poplars show more effective defence than expected
Poplars are not only relevant for the paper and pulp industry - but they can do what plant research had not expected: Their defence hormones salicylic acid and jasmonic acid reinforce each other. In contrast, these two hormones block each other in annual plants such as the model plant thale cress, which is popular in research. Either one or the other defence pathway is particularly active.