Understanding the Discovery of Plant Growth Measurement Instruments

The question asks about the Indian scientist credited with discovering or inventing an instrument specifically designed to measure the growth of plants. Let's examine the options provided to identify the correct scientist.

Analyzing the Options

• CV Raman: Sir C.V. Raman was a renowned physicist known for his work on the scattering of light, which led to the discovery of the Raman Effect. His primary contributions were in the field of physics, not plant biology or instrumentation for measuring plant growth.
• Jagdish Chandra Bose: Sir Jagdish Chandra Bose was a polymath, physicist, biologist, botanist, and archaeologist. He made significant contributions to the study of plant physiology. He is famously known for inventing the Crescograph, an instrument used to measure the growth rate of plants with high precision.
• Jayant Narlikar: Dr. Jayant Narlikar is an eminent astrophysicist and cosmologist known for his work in theoretical cosmology. His research focuses on the universe and celestial bodies, not plant biology or measuring plant growth.
• Birbal Sahni: Professor Birbal Sahni was a distinguished paleobotanist who studied fossil plants of the Indian subcontinent. His work focused on ancient plant life, not on developing instruments to measure the growth of living plants.

Based on the contributions of these scientists, Sir Jagdish Chandra Bose is the one who invented the instrument to measure the growth of plants.

Jagdish Chandra Bose and the Crescograph

Sir Jagdish Chandra Bose's work extended beyond physics into the realm of plant life. He conducted pioneering research demonstrating that plants respond to stimuli. To support his investigations into plant sensitivity and growth, he developed the Crescograph. This sensitive device could magnify the tiny movements of plant growth, making them observable and measurable.

The Crescograph uses a series of levers and gears to amplify the minute growth of a plant, projecting the magnified movement onto a screen or recording it. This invention was crucial in his efforts to show the similarities in responses between plant tissues and animal tissues, a groundbreaking idea at the time.

Conclusion

The scientist from India who discovered the instrument to measure the growth of plants is Sir Jagdish Chandra Bose. His invention, the Crescograph, was a pivotal tool in his plant physiology experiments.

Revision Table: Indian Scientists and Inventions

Additional Information: The Crescograph and Plant Science

The Crescograph invented by Jagdish Chandra Bose was incredibly sensitive. It could magnify plant growth up to 10,000 times, allowing scientists to observe even minute changes in height or length over short periods. This invention was crucial in proving Bose's theories about the sentience and responsiveness of plants, demonstrating that they react to various external factors like temperature, chemicals, and electricity in ways that were previously thought to be exclusive to animals.

Bose's work significantly advanced the field of plant physiology and challenged conventional scientific views by showing that plants possess a level of responsiveness and perhaps even "feelings" or "sensations" that were not widely accepted at the time. His research opened new avenues for understanding the complex life processes in plants.