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Early experiments on photoperiodism dealt with the flowering period of plants. They defined short-day ( late summer and fall, less than about 16 hours ), long-day ( summer, longer than 9 to 16 hours ), day-neutral ( any length ), and intermediate-day ( not classifiable as either long-day or short-day) plants in relation to their photoperiod.
One of early publications:
Factors Controlling Flowering of the Chrysanthemum: I. THE EFFECTS OF PHOTOPERIOD...
SCHWABE J. Exp. Bot..1950
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Miller and urey's experiments attempted to demonstrate?
The Miller-Urey experiment combined amino acids and other chemicals thought to be a part of the primordial soup. The experiment attempted to demonstrate the conditions on Earth in its early years.
The response of flowering plants to the daily daylight darkness conditions?
The shortening length of day causes deciduous plants to shead their leaves and prepare for winter. Also day length can bring plants into flower and fruit.
Why were Mendel's experiments and studies so important?
Because they were the early studies of genetics.
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 pigment responsible for photoperiodism?
Action spectra and photoreversibility experiments show that phytochrome is the pigment that receives the red light. Red light is the most effective color in interrupting the night-time portion of the photoperiod.
When scientists do repeated tests to discover or demonstrate something they are conducting an?
The repeated tests done by scientists to discover or demonstrate something is called experiments.
When a scientists do repeated test to discover or demonstrate something they are conducting an?
It is called experiments
When a scientist repeated test to discover or demonstrate something They are conducting an?
It is called experiments
What did miller and urey's experiments attempted to demonstrate?
The origin of life.
When scientists do repeated tests to discover or demonstrate something they are conducting what?
The repeated tests done by scientists to discover or demonstrate something is called experiments.
When scientist do repeated test to discover or demonstrate something they are cunducting an?
The repeated tests done by scientists to discover or demonstrate something is called experiments or a word is "replication."
Miller and urey's experiments attempted to demostrate?
Miller and Urey's experiments attempted to demonstrate the chemical origins of life. They first conducted the experiment in the year 1953.
Miller and urey's experiments attempted to demonstrate?
The Miller-Urey experiment combined amino acids and other chemicals thought to be a part of the primordial soup. The experiment attempted to demonstrate the conditions on Earth in its early years.
What are some early experiments used to move train cars?
recount several early experiments used to move the train cars.
Plant sellers can cause plants to bloom on schedule by influencing the length of the?
daylight hours - its called photoperiodism
Richard Pearse is most famous for his early experiments with what?
he was most known for his experiments with flying
What is the response of plants to periods of light and dark?
photoperiodism
