answersLogoWhite

0

The period of daylight, specific in length for any given species, that appears to initiate flowering in *long-day plants or inhibit flowering in *short-day plants. In actual fact long-day plants will not flower if the dark period exceeds a certain maximum and conversely short-day plants will not flower unless the dark period exceeds a certain minimum. These periods are termed critical dark periods and must be continuous to have effect (see night-break effect ).

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

What is the difference between short day plants and long day plants in terms of their light requirements for optimal growth?

Short day plants require a period of darkness longer than a critical length to flower, while long day plants require a period of darkness shorter than a critical length to flower.


How does critical night length control photoperiodism?

Photoperiodism is the response of the plant to daylight and darkness. For short day plants it will bloom in darkness and when darkness exceeds critical night length, for long day plants it will bloom during daylight and when darkness is less than the critical night length.


What is the difference between long day and short day plants and how do their growth patterns vary based on the length of daylight they receive?

Long day plants require a certain minimum amount of daylight to flower, while short day plants need a specific maximum amount of daylight. Long day plants flower when days are longer than a critical length, while short day plants flower when days are shorter than a critical length. The growth patterns of these plants vary based on the length of daylight they receive, with long day plants flowering in the summer when days are longer, and short day plants flowering in the fall when days are shorter.


What is the factors that initiates flowering in a long day plants?

In long day plants, flowering is initiated by exposure to a certain amount of light during a 24-hour period. When the length of daylight exceeds a critical threshold, it triggers the production of flowering hormones that stimulate the plant to transition from vegetative growth to the reproductive phase.


What planet length in day is close to the length of earths day?

Mars.


What is the length of day on earth?

the length of day on earth is 24 hours


What planet's length of its day is close to the length of Earth's day?

Mars


What is the the length of the day in the US?

The length of the day in th US is the same as the length of the day anywhere else in the world, roughly 24 hours.


What is the length of day on Jupiter?

the length of a day on Jupiter is average, 9.9 hours


Why is the second not defined by the length of a day?

the length of the day is not a fixed unit of time


Length of a day on Venus?

See answer given for length of Venus day in hours.


What is the length of on day on the moon?

The length of a "day" on the moon is 29 Earth days.