Plants and Daily rhythms

Question 1

(1) State the number of hours of darkness needed for a long day plant to flower

Answer 1

8-10 (hours)

Question 2

(2) A gardener has 500 short day plants. 85% of these plants flowered in March. Calculate the needed for a long day plant to flower.

Answer 2

(85/100) x 500 (1) or
(500/100) x 85 (1)
=425 (plants)

Question 3

(1) Suggest a benefit to a plant of being day neutral.

plant can flower all year round

Answer 3

plant can flower all year round

Question 4

(1) Plants flowering in response to the number of hours of darkness and light is an example of

Answer 4

C. photoperiodism