NTA Abhyas NEET2020BotanyPlant - Growth and DevelopmentPractice
Which of the following is correct about flowering in rice and wheat plants?
Options
- ARice needs a continuous uninterrupted long period of light to flower while wheat needs a continuous uninterrup
- BWheat needs a continuous uninterrupted long period of light to flower while rice needs a continuous uninterrup
- CBoth rice and wheat need a continuous uninterrupted long period of light to flower
- DBoth rice and wheat need a continuous uninterrupted long period of darkness to flower
Correct answer
B. Wheat needs a continuous uninterrupted long period of light to flower while rice needs a continuous uninterrup
Step-by-step solution
Wheat is a long day plant. These plants flowers only when they exposed to critical photoperiod or photoperiod longer than their critical day length. They need a continuous (uninterrupted) light period for flowering. Rice is a short day or long night plant. These plants give flowers on exposure to photoperiod equal to or shorter than their critical day length. They need a continuous (uninterrupted) dark period for flowering.