AP BIOLOGY

PLANTS

PLANT RESPONSES TO STIMULI

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The flowering of plants that are not affected by the amount of darkness are known as ____
A
day-neutral plants
B
short-day plants
C
long-day plants
D
medium-day plants
Explanation: 

Detailed explanation-1: -Plants in which the flowering occur irrespective of the day lengths are called day-neutral plants (DNP).

Detailed explanation-2: -They bloom irrespective of day length. When they reach a specific developmental stage, day-neutral plants begin to flower. It is not photoperiodism that causes the flowering in these plants. Tomato, cucumber, cotton, dandelion, sunflower, and several pea types are more examples of day-neutral plants.

Detailed explanation-3: -Long Day Plants: They require the periodic exposure of light exceeding the critical period to induce flowering. Short Day Plants: They require the periodic exposure of light less than the critical period to induce flowering. Day-neutral Plants: The flowering in many plants does not depend on the photoperiod.

Detailed explanation-4: -They flower when they are exposed to a short period of darkness and a long period of light. The plants that don’t depend upon the amount of darkness or daylight hours for flowering are known as Day-neutral plants.

Detailed explanation-5: -A plant that flowers regardless of the length of the period of light it is exposed to. Rice, corn, and the cucumber are day-neutral plants.

There is 1 question to complete.