Content
- Tree without fruits - how is that possible?
- Is there a tree that does not produce fruit?
- Monotony / bisexuality
- Examples of dioecious trees
- Tips
The ginkgo is one of many dioecious trees
Tree without fruits - how is that possible?
Most trees are blooming - often every year, but sometimes only every few years. After fertilization, these flowers develop fruits that are used for reproduction. However, some trees never seem to be producing fruit, even if they are constantly blooming. Why is that?
Is there a tree that does not produce fruit?
The reason why some trees produce fruits and some do not, is due to their gender. The gender distribution in the plant kingdom is comparatively complicated:
What does this have to do with the education of fruits? Quite simply: Although purely male trees are blooming, they never produce fruit. In addition, many bisexual trees are dependent on cross-pollination, d. H. In the immediate vicinity they need a tree of the same species, so that their own flowers can be fertilized and fruit can develop from them. This knowledge is immensely important, for example, in fruit growing - without suitable pollinator varieties there are usually no apples, pears or cherries.
Monotony / bisexuality
In botany, the different plant species are called "monoecious" or "dioecious". Monoculture trees bloom with both male and female flowers, dioecious trees have only male or only female flowers. So there are "male" and "female" trees that have to be planted together to develop fruit. If, however, only a male tree (or even a female without male counterpart far and wide) is in the garden, no fertilization takes place - and thus there are no fruits.
Examples of dioecious trees
The following tree species are typical representatives of the bimanaceae, although there can sometimes be monoecious single examples - for example, the yew. Other trees, in turn, can change sex as needed, such as the ash (Fraxinus excelsior). All listed species are suitable for a culture in Central European gardens.
Tips
In particular, many pome fruit varieties such as apples and pears are rarely self-fertile, but usually always need a Befruchtersorte. However, it is not enough just to plant some apple or pear tree next to it: Not all varieties harmonize with each other.