DENDROLOGY

TREE PROPAGATION AND PLANTING

SEED PROPAGATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the effect of watering plants with a saline solution on their growth?
A
Salt attracts water to the cell, thus helps a plants growth as the plant doesn’t have to work hard to find water.
B
Salt reduces plant growth by making it harder for the plant to adsorb water from the environment.
C
Salt has no effect on plant growth as they have specialised cells to deal with salt.
D
Salt can increase or decrease the growth of a plant, it depends on the environment.
Explanation: 

Detailed explanation-1: -Salinity affects production in crops, pastures and trees by interfering with nitrogen uptake, reducing growth and stopping plant reproduction. Some ions (particularly chloride) are toxic to plants and as the concentration of these ions increases, the plant is poisoned and dies.

Detailed explanation-2: -Salt stress inhibits plant growth and development by repressing cell expansion and division. The cell wall is an important factor for determining cell shape and function and is the first layer of defense against salt stress [12].

Detailed explanation-3: -By applying irrigation water of a high salinity, you not only increase the risk of soil salinity, but the level of sodium within the soil. This is known as sodification of the soil.

There is 1 question to complete.