Question

Why do we see a few drops on leaves in the early morning?

Answer 1

Hint: The term guttation was given by Burgerstein in 1887. Guttation occurs through the margin of leaves by special pores called Hydathodes(water stomata). The loss of water from the uninjured part or margins of leaves in the form of droplets at the night or early morning hours is called guttation.

Complete answer:
-Guttation often occurs under conditions of moist soil, high humidity, and relatively cool air and it usually occurs when there is active absorption of water by roots and transpiration is low i.e. moist and humid conditions
-There are tiny pores called stomata on the surface of a leaf. When it's dark, transpiration is stopped. Since the root continues to take up water during the night, pressure (called root pressure) builds up in the leaves and forces water out of special structures called hydathodes (pores present at the tip of the vein in the leaf) which are found along the leaf margin and produce the water droplet that we sometimes see along the margins of leaves in the early morning.

Additional Information: -Guttation does not occur in woody plants. It always occurs in herbaceous plants. Examples are grasses (oats, barley, rice, etc), Balsam, Nasturtium, Some plants of the Cucurbitaceae family, tomatoes, etc.
-Guttation occurs when water absorption is high and the rate of transpiration is low.
-Guttation occurs because of root pressure (positive pressure).
-Liquid water along with water contains some organic and inorganic (dissolved) substances. which means it is not pure and contains - Aspartic acid, Asparagine, Salts, and Sugars.

So. the answer is,” Guttation is the process by which we see a few drops on leaves in the early morning”.

Note: In some plant species like ladies mantle, strawberries, and many other annual plants and perennial plants including pothos and Aglaonema, guttation is a common process. It is generally seen during the early morning on the grass and is usually confused to be as morning dew.