Pollen grains and on stigma of a compatible plant; the pollen grains germinate and grow down the style and into the ovary. Once in the ovary a sperm nucleus from the pollen grain fuses with the ovule (and forms into a zygote or embryo). The pollen tube then degenrates and the ovule forms into a seed.
No, pollination occurs when pollen grains land on the sticky surface of the stigma.
Pollination
The transfer of pollen grains from the stamen to the pistil is called pollination.
It is called as pollination. Here the pollen grains are transmitted from one flower to other flower. Pollen grains may be transmitted in the same flower from the stamen to stigma.
After pollination, the pollen grains germinate on the stigma and grow a pollen tube down the style to reach the ovule. The pollen tube delivers sperm cells to fertilize the egg cell within the ovule, leading to the formation of a seed.
In cross pollination there is wastage of pollen grains , but in self pollination there is no wastage of pollen grains.
No, pollination occurs when pollen grains land on the sticky surface of the stigma.
Pollination
No, pollen grains are not formed within the stigma. Pollen grains are formed in the anthers of a flower's stamen. The stigma is part of the female reproductive structure of a flower, where pollen grains land and germinate to fertilize the ovules.
In cross pollination there is wastage of pollen grains , but in self pollination there is no wastage of pollen grains.
The anther is the part of the stamen that contains the pollen grains. These pollen grains are the male reproductive cells that are essential for the process of pollination.
During self pollination, pollen grains move from the stamen of a flower to its pistil. Cross pollination involves flowers from different plants.
The transfer of pollen grains from the stamen to the pistil is called pollination.
Pollen grains attach to the stigma of a flower's pistil during pollination. The stigma is the receptive part of the pistil where the pollen lands and germinates to form a pollen tube for fertilization to occur.
Before pollination, the pollen grains are stored in the anthers (male part) of the plant. During pollination, an insect (such as a bee) flies to the flower for nectar and some pollen from the anthers rubs off on it. When the bee travels to another flower, the pollen sticks to the stigma (female part). After pollination, fertilization can begin. Hope this helps.
Pollen germination starts on compatible stigma
It is called as pollination. Here the pollen grains are transmitted from one flower to other flower. Pollen grains may be transmitted in the same flower from the stamen to stigma.