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KCET 2014 Biology Solved Paper
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Question : 31
Total: 60
If a plant produces flowers when exposed only to alternating periods of 5 hours light and 3 hours dark in a 24 hours cycle,then the plant should be a:
Short day plant
Long day plant
Short-long day plant
Day neutral plant
Validate
Solution:
Long day (LD) plants flower in response to day lengths longer than the critical duration or critical photoperiod. For example, radish, mustard, spinach, spring wheat, black henbane, etc.
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