Anemophily is the pollination by wind. Anemophilous plants are characterized by small flowers, pollens present in large numbers which are small, dry, and light in weight, number of ovules is generally reduced in the ovary, and a feathery or brushy stigma to receive the pollen. All these features are shown by coconut flowers. In Vallisnertia pollination occurs outside water called epihydrophily. Callistemon (Bottlebrush) is pollinated by birds and is an example of ornithophily. Salvia is insect pollinated and is an example of entomophily.
Read more from the chapter: Sexual Reproduction in Flowering Plants
Pollinating agents are those that aid in transferring pollen grains to the floral stigma. Wind, water, insects, and certain mammals are among these pollinators. Another name for wind pollination is anemophily. The pollen grains used in this kind of pollination are distributed by wind or air.
Features of pollination
Types of pollination
There are two types of pollination:
Read more:
Related concepts | ||
---|---|---|
Genes | Meiosis | Plasma membrane |
Germination | Double fertilization | Gemmule |
Flowering plants with hermaphrodite flowers have developed many reproductive strategies to ensure cross-pollination. Study the given outbreeding devices adopted by certain flowering plants and answer the questions that follow.
Note : All plants belong to the same species. No pollen tube growth/inhibition of pollen germination on stigma. Pollen germination on stigma.
The following question is based on pollination. Study the figures carefully and answer the questions that follow.
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
Sexual reproduction in flowering plants takes place or happens when the production of a new organism occurs from two parents by making use of their gametes or sex cells. Both sexual and asexual reproduction can be found in plants. Nearly all flowering plants reproduce sexually. Flowers play a captious role in the process as it carries both the male and female reproductive parts commonly known as androecium and gynoecium respectively.