NEET BIOLOGY

Detailed explanation-1: -“Photoperiodism” is defined as “The response to changes in daylength that enables plants (or any other living organisms) to adapt to seasonal changes in their environment.”

Detailed explanation-2: -photoperiodism, the functional or behavioral response of an organism to changes of duration in daily, seasonal, or yearly cycles of light and darkness. Photoperiodic reactions can be reasonably predicted, but temperature, nutrition, and other environmental factors also modify an organism’s response.

Detailed explanation-3: -Short Day Plants (SDP) They need less than the critical duration of light (about 8-10 hours) and a continuous dark period (about 14-16 hours) to flower. The dark period is very critical for SDP plants and has to be continuous. These plants will not flower if the dark period is briefly interrupted by light.

Detailed explanation-4: -Plants use light to track time, which is known as photoperiodism. They can tell the time of day and time of year by sensing and using various wavelengths of sunlight. Light can also elicit a directional response in plants that allows them to grow toward, or even away from, light; this is known as phototropism.