NEET BIOLOGY

Detailed explanation-1: -To understand plant flowering, you need to get a handle on “photoperiodism, ” or amount of light and darkness a plant is exposed to. The amount of uninterrupted darkness is what determines the formation of flowers on most types of plants, according to Oregon State University Extension Service horticulture experts.

Detailed explanation-2: -The circadian clock regulates the timing of the specific photoreceptor for flowering. That is how plants sense differences in day length.” This system keeps plants from flowering when it’s a poor time to reproduce, such as the dead of winter when days are short and nights are long.

Detailed explanation-3: -Later it was discovered that the length of night controls the photoperiodic response. The light and dark periods are perceived by leaves. On receiving the right amount of photoperiod that is sufficient to induce flowering, a hormonal substance is produced that initiates flowering.

Detailed explanation-4: -Photoperiodism is the physiological reaction of organisms to the length of night or a dark period. It occurs in plants and animals. Plant photoperiodism can also be defined as the developmental responses of plants to the relative lengths of light and dark periods.

Detailed explanation-5: -Phototropism, plant growth towards or away from light, and photoperiodism, regulation of flowering and other developmental transitions by day/night length.