HORTICULTURE SCIENCE
CROP PHYSIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
plants that require long nights to flower
|
|
|
plants that require short nights to flower
|
|
|
plants that don’t require a specific photoperiod
|
|
|
Tiny openings in plant epidermis for gas exchange
|
Detailed explanation-1: -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-2: -The flowering response in short-day plants and long-day plants is dependent on the duration for which these plants are exposed to light. The short-day plant and long day plant can flower at the same place, provided they have been given an adequate photoperiod.
Detailed explanation-3: -Short-day Plants bloom when the length of daylight (the photoperiod) drops below a particular critical threshold, typically in late summer or autumn, after the equinox. Examples of short day plants include: chrysanthemum, rice, soybean, onion, violet, Christmas cactus, and poinsettia.