Page 17 - Introduction to Agriculture by: Aqleem Abbas
P. 17
Introduction to Agriculture Notes prepared by: Aqleem Abbas
They are small green plants. They grow on wet places. Roots are not true called
rhizoids. Stem and leaves are present. Have no agronomic importance e.g. mosses,
liverworth, hornworth.
Pteriodiophyta.
They don’t have flower and seeds but reproduce by spores. They don’t have
agronomic importance except as ornamentals. They have vascular bundles so called
vascular plants.
E.g. ferns, horse tail
Spermatophyte
They are highly developed plants. They have leaves, stems, roots as well as having
flowers. All have agronomic importance.
Gymnosperm
In which seeds are not covered e.g. pine
Angiosperm
In which seeds are covered in ovary
Angiosperms are divided into two group on basis of cotyledon.
