Plant Growth and Development Question 7

7. If a tree, flowers thrice in a year (Oct., Jan. and July) in Northern India, it is said to be [1997]

(a) photosensitive but thermoinsensitive

(b) thermosensitive but photoinsensitive

(c) photo and thermosensitive

(d) photo and thermoinsensitive

Show Answer

Answer : d

Hints & Solutions

(d) In northern India, during these months maximum variation in light intensity, duration and temperature is observed. Hence, only plants that are photo-and thermoinsensitive can flower during these months.



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