Question

For Short day plants
the critical period is
a) light
b) dark/night
c) u v rays
d) both a and c​

Answer 1

Answer:

According to photoperiodism, SDP are short day plants which prefer short day light for the plants to flower. They prefer long nights and short days. Thus, the critical period is photoperiod - light.

Answer 2

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.

For short-day plants, the critical period is

b) dark/ night.

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