fertilisation of plants

They produce oxides, sulphur, nitrogen, hydrocarbons, particulate matter and fluorin..

>double fertilisation..

As a result of fertilisation, the following changes are observed in a flower: 1. A diploid zygote is formed and develops into an embryo which is the future plant. 2. The triploid endosperm tissue serves as a source of nutrition for the developing embryo. 3. The ovule becomes s..

In angiosperms, the fruits are usually formed after the process of fertilisation. In certain plants, however, the fruits are formed without the act of fertilisation. Such fruits are called parthenocarpic fruits and the phenomenon is known as parthenocarp..

In some plants even if self pollination takes place, fertilisation is prevented as the pollen fail to germinate. Such plants can produce seeds only after cross pollination. E.g., Brassi..

Reproduction occurs by vegetative propagation, asexual and sexual reproduction. Vegetative propagation through artificial method can be done by cuttings, layering and grafting. Pollination refers to the transference of pollen grains from the anther of a flower to the stigma of the flower. It occurs..

Fertilization..

In angiosperms, the fruits are usually formed after the process of fertilisation. In certain plants, however, the fruits are formed without the act of fertilisation. Such fruits are called parthenocarpic fruits and the phenomenon is known as parthenocarpy. Parthenocar..

After fertilisation the ovary develops into the fruit and the ovules into seed. The ovary wall develops into the fruit wall called the pericarp. In some cultivated varieties of plants like bananas, grapes, apples etc., the ovary may develop into fruit without fertilis..

Chemical Fertilizers - These are nutrient supplements for plants manufactured in fertilizer factories from chemicals. They are nutrient specific i.e., they may provide only nitrogen, only phosphorus or only potassium to the soil. They are often used when a particular nutrient is required ..