Plant Growth and Development Question 67
67. Through their effect on plant growth regulators, what do the temperature and light control in the plants?
[2012M]
(a) Apical dominance
(b) Flowering
(c) Closure of stomata
(d) Fruit elongation
Show Answer
Answer : b
Hints & Solutions
(b) Flowering is induced by light and temperature. Red light promotes flowering. However, it also encourages vertical plant growth. Too much red at the wrong time will cause your plants to stretch, which results in lower yields and lanky, unstable plants. Blue light is your secret weapon for amping up the concentration of oils and resin.
