HORTICULTURE

Detailed explanation-1: -For successful fertilization, pollen must germinate on the stigma, grow through the style, and find and penetrate the ovule micropyle. These processes require the growing pollen tube to undergo numerous changes in growth orientation.

Detailed explanation-2: -Pollen from a flower’s anthers (the male part of the plant) rubs or drops onto a pollinator. The pollinator then take this pollen to another flower, where the pollen sticks to the stigma (the female part). The fertilized flower later yields fruit and seeds.

Detailed explanation-3: -During the process of fertilization, pollen lands on the stigma, a tube grows down the style and enters the ovary. Male reproductive cells travel down the tube and join with the ovule, fertilizing it.

Detailed explanation-4: -Fertilization: It is the process of fusion of male and female gamete to produce a viable zygote that develops and grows to become a new plant. Steps of fertilization: Once the pollen lands on the right stigma, the pollen grain absorbs moisture and germinates forming a pollen tube.

Detailed explanation-5: -Pollination is simply the transfer of pollen grains from an anther to a stigma. Fertilization occurs much later when the pollen grains germinate on the stigma and send down a pollen tube which releases the sex cells to fertilize the ovules.