Farmers Potometer

Product Code : SCL-LG-11980

Farmers Potometer (SKU SCL-LG-11980) is a bottle-type potometer for measuring water uptake by a freshly cut leafy shoot, used as an indirect estimate of transpiration. A wide-mouth bottle, a three-hole stopper, a funnel reservoir and a bent capillary make up a stable set-up that suits class demonstrations in school biology and college botany. Orders from schools, colleges, tender contractors and distributors are handled by Science Lab Supplies in Ambala, India.

Specifications

Each part of the bottle-type Farmers Potometer is listed on its own row in the table. In short, the wide-mouth bottle holds the water and gives a stable base, and its three-hole stopper carries the shoot, a bent capillary with an observation scale, and a funnel reservoir for resetting the bubble; sizes are confirmed on the quotation.

Applications and Experiments for the Farmers Potometer

As the shoot draws water from the bottle, an air bubble in the capillary moves along the scale. Timing that movement over equal intervals, then repeating with one condition changed, lets students compare transpiration in bright and dim light, still and moving air, or dry and humid surroundings.

• NCERT Class 10 biology (life processes): showing that plants absorb water and lose it by transpiration.
• NCERT Class 11 biology (transport in plants): effect of light on transpiration, using a Parallel Beam Light Source as the lamp.
• B.Sc. botany: comparing water uptake by shoots of different plants at a temperature noted on a Glass Thermometer.
• Recording bubble displacement per unit time with School Digital Stopwatches and plotting rate graphs.

Standard Scope of Supply

Each set has one wide-mouth reservoir bottle, one three-hole stopper, one bent capillary tube with observation scale, one funnel-type water reservoir and the connecting sections that complete the assembly. A plant shoot, beaker, timer, cutting tools, support stand and sealing compound can be added to the quotation.

Packing, MOQ and Lead Time

Whether you need one Farmers Potometer for the teacher's bench or several for group work, the quotation sets out packing, delivery time and price for that number. Beakers and other plant-physiology glassware can be quoted alongside from the same laboratory glassware supplier in India.

Science Lab Supplies can ship to buyers in Zambia, Rwanda, South Africa, Qatar, Sri Lanka and Vietnam, being a registered exporter with an Importer-Exporter Code. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). Let us know the bottle size you prefer through the contact page, place the potometer with any beakers in the enquiry cart, or study the lab tender page for tender-based orders.

Frequently Asked Questions

What does the Farmers Potometer measure?
It measures the rate at which a leafy shoot takes up water. Because most of that water is lost by transpiration, the result is used as an estimate of the transpiration rate.

Why is it built on a wide-mouth bottle?
The bottle holds the water supply and gives a stable base, while its three-hole stopper seats the shoot, the capillary and the funnel reservoir together in one closure.

Who supplies the Farmers Potometer?
Bottle size, capillary scale and packing for this potometer are confirmed on a quotation from Science Lab Supplies, which serves schools, colleges and tender buyers from Ambala, India.

Why must every joint be airtight?
A leak lets air move the bubble independently of the plant, so readings become unreliable. Seat the stopper firmly and check each connection before timing begins.

Related Transpiration and Plant Physiology Items

Water uptake links to mineral absorption, leaf and stem anatomy, and the other potometer designs. These items from the Lab Glassware and Biology Lab Equipment ranges, together with teaching charts, let a class compare methods and trace the water path, all on one quotation.

• Student Potometer ‘H’ type — graduated capillary and resetting reservoir in an H-shaped glass body.
• Ganong’s Potometer — narrow-bore horizontal capillary with a flow-control stopcock.
• Potometer — measures water absorption with a water bottle and graduated tube.
• Potometer Apparatus — glass stopcock admits reservoir water to set the bubble position.
• Kit for the Demonstration of Absorption of Mineral Salts in Plants — mineral salt with two 250 ml Erlenmeyer flasks.
• Botanical Dicot Leaf T.S. Chart — stomata, guard cells, xylem and phloem in a dicot leaf section.
• Dicot Stem T.S. Educational Chart — ring of vascular bundles, cambium, xylem and phloem.
• Respirometer with Stand — corks, three-way taps and a stand for seed respiration against a control.

Browse the full Lab Glassware range, the Biology Lab Equipment range, or all school lab equipment.

Last updated: 9 October 2026