1. Sub.:- Fundamentals of Plant Breeding
Course No. :- APB- 5211
Credit hours:- 3(2+1)
Lec. Topic :- Flower and its parts
Presented by:-
Lt. Roshan Parihar, Asstt. Professor
Deptt.of Genetics &Plant Breeding
Indira Gandhi Krishi Vishwavidyalaya
Raipur, C.G.
BTC College of Agriculture & Research Station ,Sarkanda,
Bilaspur,(CG)-495001
2. Introduction To Flower
Reproductive organ of angiosperm plants
especially one having showy or colorful parts.
It is also called Bloom.
A plant cultivated for it’s booms or blossoms.
Flowers represent the reproductive organ of
flowering plants.
Flowers arise from the apical portion of a stem in a
region called the Receptacle.
3. Flower parts
Calyx is the outer part of flower which protect the buds
during immature stage of flower. Individual calyx called
Sepal.
Corolla is the inner part of flower, which colorful gives
help in pollination for attract the pollinating agent for
pollination.
Individual corolla is called Petal.
Androecium: It is the male part of flower, it contains
Anther and Filament.
Anther: Part of stamen that contains pollen grains.
Filament: The stalk of a stamen.
4. Gynoecium: It is the female part of flower, it contains
Stigma, Style and Ovary.
Stigma: The apical end of the style where deposited
pollen grain enters into pistil.
Style: The narrow elongated part of the pistil between
the ovary and stigma.
Ovary: The organ that bears the ovules of a flower.
Flower parts
5. Flowers have only a gynoceium meaning they are “female”
flowers are called Carpellate/Pistillate flowers.
Flowers have only androecium meaning they are “male”
flowers are called Staminate flowers. Staminate flowers
produce only pollen and are not capable of producing fruit.
Plants that have carpellate and staminate flowers on a single
individual are called Monoecious.
Plants that have carpellate and staminate flowers on
separate individual plants are called Dioecious.
Types of Flowers
6. Flowers that have both male and female whorls/parts are
called Perfect flowers.
Flowers that have missing any one essential whorl/part
either male or female parts are called Imperfect
flowers.
Flowers that have four whorls/parts (calyx, corolla,
androecium & gynoecium) are called Complete flowers.
Flowers that have missing two whorls/parts (calyx and
corolla) are called Incomplete flowers.
Types of Flowers
7. In a flower androecium is before mature than
gynoecium is called Protoandry.
In a flower the gynoecium is before mature than
androecium called Protogamy.
The androecium and gynoecium both have same
length is called Homostyle.
The androecium and gynoecium both have different
length is called Hetrostyle.
Types of Flowers
8. The androecium and gynoecium present in a flower but both are
not functional are called Sterile Flower.
In a flower the androecium and gynoecium both are missing is
called Natural Flower.
Types of
Flower