Insects or wind
Though water hyacinth and water lily are aquatic plants, pollination is not usually carried out by water (hydrophily) in these species. Instead:
Therefore, insects or wind are the primary pollinating agents in these plants, not water.
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 :
Pollination is defined as the pre-fertilization event or process, where pollen grains from another are transferred to the stigma of a flower.
Double fertilization is a complex process that involves the fusion of one female gametophyte with two male gametes.
All plants having flowers completely rely on the pollination method for reproduction. There are 2 types of pollination –