Plant Growth And Development Question 70
Question: Which one of the following is a long day plant?
Options:
A) Bajra
B) Soyabean
C) Tobacco
D) Wheat
Show Answer
Answer:
Correct Answer: D
Solution:
[d] Long-day plants usually flower in the spring or early summer; they flower only if the light periods are longer than a critical length, which is usually 9-16 hours.
For example, wheat plants flower only when light periods exceed fourteen hours.
BETA
