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Author Question: A grower planted a crop of poinsettias on schedule. She conducted proper watering, fertilization, ... (Read 14 times)

fbq8i

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on: Jul 22, 2018
A grower planted a crop of poinsettias on schedule. She conducted proper watering, fertilization, pest control, pinching, chemical growth regulation and temperature control. At Christmas the crop had failed to flower and was still green and healthy. Explain how this could have happened.
 
  What will be an ideal response?

Question 2

Why can plants generally be grown at a cooler daytime temperature in the winter than in the summer?
 
  What will be an ideal response?


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Jadwiga9

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Reply #1 on: Jul 22, 2018
Answer to Question 1

Light reached the crop during the night which placed it under short night
conditions. Since it requires long nights to flower it remained vegetative.

Answer to Question 2

During the winter low light intensity commonly limits photosynthesis.
As a result, the maximum beneficial level of heat is lower.


fbq8i

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Reply 2 on: Jul 22, 2018
Wow, this really help

okolip

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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