Weitere Beispiele werden automatisch zu den Stichwörtern zugeordnet - wir garantieren ihre Korrektheit nicht.
This is to the advantage of the fig, since it prevents self-pollination.
Cleistogamous - self-pollination of a flower that does not open.
Self-pollination can be an advantage when the number of flowers are small or widely spaced.
Lots of Terran species have evolved ways to avoid self-pollination.
Other plants have chemical or physical barriers to self-pollination.
The flowers are hermaphroditic and have a mechanism to avoid self-pollination.
Some plants use the control of pollen germination as a way to prevent this self-pollination.
The genus may have undergone self-pollination, although it is also possible that insects were involved in the process.
But because such inbreeding can be harmful, many plants have evolved mechanisms to avoid self-pollination.
Although U. thomasii is protandrous, levels of self-pollination remain high.
Geitonogamous self-pollination must therefore occur more often in this species than cross-pollination.
Self-pollination is impossible, and plants are cross-pollinated by insects.
Inbreeding in plants also occurs naturally in the form of self-pollination.
Self-pollination and pollination by insects clearly also play major roles in seed production."
But the more ramets the larger the share of the pollen is lost depending on ineffective self-pollination.
Inbreeding besides self-pollination can also occur, most likely the result of mating between closely related plants.
It is the only species of the genus Ophrys which preferentially practice the self-pollination.
Plants do, in many species, have the back-up option of self-pollination, if they are not self-incompatible.
Because the styles project beyond the anthers, however, self-pollination in nature is probably less frequent than outcrossing.
Self-pollination limits the variety of progeny and may depress plant vigor.
Self-pollination is often avoided by means of protandry.
To prevent unwanted self-pollination of the mother plant, carefully remove its anthers beforehand.
Geraniaceae are normally pollinated by insects, but self-pollination is not uncommon.
Maca reproduces mainly through self-pollination and is an autogamous species.
Dichogamy: Pollen and stigma of the flower mature at different times to avoid self-pollination.