Pollen germination to form the pollen tube through which the male gamets for fertilization are transferred. Simply the formation of male and female gametes sometimes termed as spores/pollens(in male plant or part) etc.
Pollination
Flowering plants bear flowers. Flowers bear male & female reproductive organs. The ovules in female plants after fertilization develop into seeds. The seeds are mainly formed for dispersal and overcoming hostile weather conditions.
During fertilisation in plants, one male gamete fuses with the egg cell and forms the zygote (this process is called syngamy). The other male gamete fuses with the secondary nucleus (this is called triple fusion). The syngamy and triple fusion together are called double fertilization.
From fertilization of ovules
Fertilization in plants is achieved by union of male gamete with an egg nucleus. The first step in fertilization is formation of male and female gametes, Second step is transfer of male gametes containing pollen to stigma of female reproductive organ by pollination. The third step is germination of pollen grain for movement of male gamete to the vicinity of female gamete. The fourth step is the union of the nucleus of male gamete with egg nucleus in the embryo sac. The fourth step of fertilization in angiosperms is the act of double fertilization. During this process one of the two gametes released by a pollen tube fuses with secondary nucleus. The secondary nucleus is formed by fusion of two nuclei of embryo sac. Thus double fertilization is also called triple fusion.
Polymerization
the fruits which are formed without fertilization are called parthenocarpic fruits
Fertilization produces a single cell called a zygote. The zygote is formed when a sperm cell fuses with an egg cell during the process of fertilization, initiating the development of a new organism.
Only one sperm unite with the egg at a time and this process is called fertilization. A zygote is formed after this union which later on develops in to an embryo.
Flowering plants bear flowers. Flowers bear male & female reproductive organs. The ovules in female plants after fertilization develop into seeds. The seeds are mainly formed for dispersal and overcoming hostile weather conditions.
The developing plant formed through fertilization is called an embryo.
A fertilized egg cell is called a zygote. This cell is diploid and it is formed after synapsis during the process of fertilization is complete.
Zygote is formed by the unification of an ovum and a sperm.Sperm provides the nucleus whereas the oven provides the cytoplasm of the zygote.Union of a sperm and a ovum is called fertilization and zygote formed in this way is diploid in nature.
The process is known as fertilisation.
During fertilisation in plants, one male gamete fuses with the egg cell and forms the zygote (this process is called syngamy). The other male gamete fuses with the secondary nucleus (this is called triple fusion). The syngamy and triple fusion together are called double fertilization.
That process is called Speciation!
In most flowering plants fertilization takes place in the pistil. Pollen from the anthem of the stamen is placed on the stigma of the pistil. A pollen tub forms down the style of the pistil towards the ovary. It is in the ovary that the pollen fertilizes the ovum and the seed is formed.
Fertilization