3 Nov 2021
Problem 40
Page 869
Section 30.3: Critical Thinking Questions
Chapter 30: Plant Form and Physiology
Textbook ExpertVerified Tutor
3 Nov 2021
Background and context
Photoperiodism is a process in which plants control flowering based on the periods of light and darkness. Long day plants are plants that require less than 10 hours of darkness for flowering. Many of the summer flowers such as poppies, asters, and vegetables such as spinach and lettuce are long-day plants. Many nurseries control the length of the day and night to promote or delay the blooming of flowers.
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