Photoperiodism refers to the response of a plant to periods of day-night. The hormonal chemical that causes flowering is thought to be produced in the leaves. This hormonal substance migrates to shoot apices from leaves and transform them into flowering apices. Photoperiodism plays an important role in studying the response of flowering in various crop plants with respect to the duration of exposure to light. Flowering in certain plants is qualitatively or quantitatively dependent on low-temperature exposure. This phenomenon is referred to as vernalisation. It specifically focuses on promoting flowering through a period of low temperature. It prevents premature reproductive development late in the growing season, providing the plant with enough time to mature.Answered by Abhisek | 1 year ago
What would be expected to happen if:
(a) GA3 is applied to rice seedlings
(b) dividing cells stop differentiating
(c) a rotten fruit gets mixed with unripe fruits
(d) you forget to add cytokinin to the culture medium
Would a defoliated plant respond to a photoperiodic cycle? Why?
Which one of the plant growth regulators would you use if you are asked to:
a. Induce rooting in a twig
b. Quickly ripen a fruit
c. Delay leaf senescence
d. Induce growth in axillary buds
e. Bolt a rosette plant
f. Induce immediate stomatal closure in leaves.
‘Both a short-day plant and a long-day plant can flower simultaneously in a given place’. Explain
‘Both growth and differentiation in higher plants are open’. Comment.