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Fertilization
- Fertilization is defined as the fusion of male gamete present in pollen grains and the female gamete present in ovules to form zygote .
- After the pollen grains land on stigma, a tube grows out of pollen grain and reaches the ovary via style and male gametes travel through this tube.
FERTILIZATION TAKING PLACE IN THE OVULES PRESENT INSIDE OVARY
Post-fertilization Changes
- The zygote which is formed after fertilization undergoes repeated cell division to form embryo within the ovule.
- All the ovules develop a hard coat around itself and are converted into a seed .
- The ovary matures into fruit containing seeds inside it. Therefore, the fruit protects the seeds.
- The remaining parts of flowers such as petals, sepals, stamen, stigma etc. fall off after drying.
- The seed contains the future plant or embryo . The process of development of embryo into seedling is known as Germination . Germination starts when a seed absorbs water, swells and bursts through the seed coat.
