Plants requiring exposure to light for less than the critical photoperiod for flowering are

Plants requiring exposure to light for less than critical period in order to flower are called ------------------------

Plants which require an exposure to light for a period greater than critical day length are

Plants which must be exposed to light for a period less than the critical duration before the howering is initiated in then are called

Who first discovered the effect of photoperiod on flowering?

Plants require sun light for their

Nicotiana tabacum, a short plant, when exposed to more than the critical period of light fails to flower. Explain.

Plants which require the exposure to light for a period exceeding a well defined critical duration for howering are called

In an experiment , two long day plants belonging to the same species are selected . In plant A , all leaves are covered in such a way that no light can reach them but the floral buds are exposed and light can reach them. In plant B, all floral buds are covered in such a way that no light can reach them. Both these plants are now subjected to light for a duration greater the their critical photoperiod. Which of these results will be obtained ?