« previous next »

Author Question: Explain how photoperiod can control flowering. What will be an ideal ... (Read 34 times)

Yi-Chen

  • Hero Member
  • *****
  • Posts: 550
on: Jul 22, 2018
Explain how photoperiod can control flowering.
 
  What will be an ideal response?

Question 2

When organic amendments such as animal or green manures are added to soils, micronutrient availability generally is enhanced by the production of natural chelating agents.
 
  Indicate whether the statement is true or false


Sweetkitty24130

  • Sr. Member
  • ****
  • Posts: 291
Reply #1 on: Jul 22, 2018
Answer to Question 1

Night length triggers flowering through its affect on a pigment called phytochrome, which has two different forms. Each form is sensitive to different wavelengths of light in the red to far red range. As the night length varies, so does the phytochrome form and this triggers flowering.

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Yi-Chen

  • Hero Member
  • *****
  • Posts: 550
Reply #2 on: Jul 22, 2018
Thank you!


Sweetkitty24130

  • Sr. Member
  • ****
  • Posts: 291
Reply #3 on: Jul 22, 2018
Always glad to help...


« previous next »
 

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Relatively simple changes in Hox genes control limb formation in tetrapods. Relatively simple changes in Hox genes control limb formation in tetrapods.
Control of Components of REM Sleep by the REM-ON Region Control of Components of REM Sleep by the REM-ON Region
Margaret Sanger, birth control pioneer. Margaret Sanger, birth control pioneer.
Cardiovascular and renal control of blood pressure. Cardiovascular and renal control of blood pressure.
Non-Hormonal Forms of Birth Control Non-Hormonal Forms of Birth Control
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
Video: Pressure volume relationships - Normal inspiration and expiration

For a complete list of videos, visit our video library