HORTICULTURE

Detailed explanation-1: -Many environmental cues signal a plant to produce flowers, and light is one of the most important of these. In many species, flowering is a photoperiodic response, in that it is controlled by the length of the light and dark periods to which the plant is exposed.

Detailed explanation-2: -The subsequent transfer to a lower temperature tends to favor the induction and organogenesis of flower buds [1]. Once flower differentiation is completed, most bulbs require a period of low temperature (4–9 °C) from the beginning of autumn, which enables stem elongation and anthesis in spring.