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 steady bench set-up that suits class demonstrations in school biology and college botany. Science Lab Supplies dispatches it from Ambala, India to schools, colleges, training institutes, tender contractors and distributors.

Specifications

The wide-mouth reservoir bottle holds the water and gives the apparatus a stable base. Its three-hole stopper carries the leafy shoot, a bent capillary tube with an observation scale, and a funnel-type reservoir used to reset the bubble. Bottle volume, capillary bore, scale range and glass grade 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 environmental factors on transpiration.
• B.Sc. botany: comparing water uptake by shoots of different plants.
• Recording bubble displacement per unit time 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 are not confirmed as included.

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). Send enquiries from the contact page or the enquiry cart; the lab tender page explains tender supply.

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.

Who supplies the Farmers Potometer?
Science Lab Supplies in Ambala, India supplies it and confirms the bottle size, capillary scale and packing on the quotation for schools, colleges and tender buyers.

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.

Related Transpiration and Photosynthesis Apparatus

Comparing potometer designs helps students see the same principle in different forms, and a beaker of water is needed at the capillary end. These four items from the lab glassware range complete the bench and can be quoted with the Farmers Potometer.

• Student Potometer ‘H’ type — compact one-piece glass design.
• Ganong’s Potometer — horizontal capillary with stopcock.
• Wilmott’s Bubbler — photosynthesis rate by bubble counting.
• Borosilicate Beaker — holds water at the capillary end.

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

Last updated: 25 September 2026