WHY DO FLOWERS HAVE FRAGRANCE?
Whenever we pass through a garden during the spring the
fragrance of flowers enchants us.Nature has endowed flowers with
beauty,attractive colours,nectar and fragrance.Insects and flies get attracted
towards the flowers and sit on them.And when they leave they carry with them
pollen grains to other flowers
Flowers
have unique smells because they attract different pollinators. For example,
bees, moths and butterflies tend to be drawn to sweet smelling flowers, like
roses, whereas insects like dung flies are attracted to flowers that smell like
rotting meat .
Brightly colored flowers attract different insects to come
visit the flower. When insects like bumblebees perch on a flower's petals
looking for nectar, pollen gets stuck to their bodies. When insects fly off to
another flower, the pollen is transferred to the new flower.
Plants
rely on bees and other insects to reproduce and so they have adapted, over
time, to become more attractive to them. Bees are drawn to plants with open or
flat tubular flowers with lots of pollen and nectar. A flower's scent can have
particular appeal to bees, and its bright colours may lure the bees in.
Different
flowers contain different oils which give specific fragrance to
flowers.As these oils gradually keep on evaporating ,the fragrance of the
flowers spreads in the air.In fact, perfumes are prepared from the oils extracted
from these flowers.
There
are various processes of making perfumes.In one process,flowers are kept in a pot
through which steam steam is passed. The out going steme brings oil with
it.This steam is passed through water .Thus the oil brought out by the steam
starts floating on the water surface .This is then separated from water.There
are other methods of making perfumes also.France produces maximum amount of
perfumes.It has been found that one ounce of rose perfume is extracted from 110
kg of rose flowers.Flowers like rose, Raat Ki Rani,pandarus,
lavender,jasmine,etc.,are generally use for making perfumes.
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