Class 11 Biology Plant Physiology Plant Growth and Development



Importance of day length in flowering of plants/photoperiodism was first observed in
(a)
Cotton
(b)
Tobacco
(c)
Lemna
(d)
Petunia
Correct answer: (b) 
Solution: The flowering response of plant to the length of dark and light period is called as photoperiodism. It was first observed in Soybeans and tobacco by Garner and Allard. It was observed that these plants flower only when they were exposed to certain amount of day light. 
Thus, the correct answer is option B.

widgit image
Connecting you to a tutor in 60 seconds.
Get answers to your doubts.
play store logo
apple store logo
Similar topics
plant growth and development
respiration in plants
transport in plants
anatomy of flowering plants
photosynthesis in higher plants
widgit image
Connecting you to a tutor in 60 seconds.
Get answers to your doubts.
play store logo
apple store logo
plant growth and development
respiration in plants
transport in plants
anatomy of flowering plants
photosynthesis in higher plants