1. ASSIGNMENT
TOPIC: ABSORPTION AND TRANSPIRATION OF WATER IN PLANTS
SUBJECT: AGRO-5112 PRINCIPLES AND PRACTICES OF WATER
MANAGEMENT
SUBMITTED TO:
MISS.PRABHJOT KAUR
SUBMITTED BY:
ADIT SINGLA
CLASS: M.Sc. (AGRI.) AGRONOMY
UNI. ROLL NO. 21-M-AGRI-017
BATCH: 2021-23
2. ABSORPTION
OF WATER IN
PLANTS
1) Uptake of water by plants is called
absorption of water.
2) Plant absorb water from the soil through
the root hairs.
3) Water is said to be the liquid gold of life.
4) Plant are capable of absorbing water from
soil solution.
5) Mainly absorb capillary water.
6) Plant also absorb dissolved nutrients along
with water
3. MECHANISM OF WATER ABSORPTION IN PLANTS
MECHANISM OF
WATER ABSORPTION
IN PLANTS
Kramer (1949) proposed
that water is absorbed by
mechanism
4. TRANSPIRATION
OF WATER IN
PLANTS
1) Transpiration is the process of water movement
through a plant and its evaporation from aerial
parts, such as leaves, stems and flowers. Water is
necessary for plants but only a small amount of
water taken up by the roots is used for growth and
metabolism. The remaining 97–99.5% is lost by
transpiration and guttation.
2) Leaf surfaces are dotted with pores
called stomata (singular "stoma"), and in most
plants they are more numerous on the undersides
of the foliage. The stomata are bordered by guard
cells and their stomatal accessory cells (together
known as stomatal complex) that open and close
the pore.
5. 1) Water is passively transported into the roots and then into
the xylem.
2)The forces of cohesion and adhesion cause the water molecules
to form a column in the xylem.
3)Water moves from the xylem into the mesophyll cells,
evaporates from their surfaces and leaves the plant by diffusion
through the stomata
OVERVIEW OF TRANSPIRATION OF WATER
IN PLANTS:
