Q. Photoperiodism was first characterised in
A) Cotton
B) Tobacco
C) Potato
D) Tomato
Explanation
[Solution from source] Garner and Allard (1920) discovered photoperiodism while studying the Maryland Mammoth variety of tobacco, which flowered only when days were short. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.