Chapter 42 - Chapter 42 Plant Reproduction I. Plant...

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Chapter 42 Plant Reproduction I. Plant reproduction 1. Flower initiation – many factors induce flowering in plants, which is necessary for sexual reproduction A. Age of plant – plants go through a maturation process Young plants are often incapable of flowering Phase change – juvenile phase to adult B. Photoperiod – day length Plants N. or S. of the equator experience changes in day length during the year Short-day plants – initiate flowering when days fall below a critical length Long-day plants – initiate flowering when days become longer than a critical length Day-neutral plants – flower regardless of day-length (roses) C. Temperature dependent – vernalization require a certain period of chill before flowering D. Autonomous pathway – independent of external cues except for nutrition
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Plants remember number of nodes produced Plants will only flower after a certain number of nodes has been produced Determinism – once flower initiation has started, plant produces flowers
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This note was uploaded on 05/10/2009 for the course BIOLOGY 21909 taught by Professor Jefffeaster during the Spring '09 term at Fullerton College.

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Chapter 42 - Chapter 42 Plant Reproduction I. Plant...

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