14 besides flowering what are 2 other plant processes

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day plant can have a critical day length of 11 hours? 14. Besides flowering what are 2 other plant processes that can be controlled by photoperiod? 15. What happens when a leaf is solarized? 16. What is chilling injury and at what temperature can it happen to some tropical plants? 17. Describe: stratification, vernalization, chilling requirement 18. How can withholding water help strengthen stems and keep them short? 19. What are the 3 general stages of seed germination? 20. What are the 4 main functions of roots?
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21. Why is a balance between root and shoot growth important? 22. What is the difference between determinate and indeterminate stem growth? 23. Describe the lifecycle of an annual, biennial, and perennial plant. 24. Why are many perennials grown only as annuals in areas with cold winters? 25. What determines if a plant is in a juvenile or mature stage of development? 26. Describe how growers manipulate the photoperiod to produce the short-day plant chrysanthemum year-round. 27. What is circadian rhythm? 28. What are: vernalization, forcing? 29. Define the following: pollination, self-fertile, self-sterile. 30. Define parthenocarpy. 31. Botanically, what is a fruit? 32. Why do fruit growers often remove up to half of the developing fruit from their plants? 33. Describe the growth of fruit using the sigmoid curve. 34. What is senescence in plants? 35. How does senescence differ in annual and perennial plants? 36. Give a natural function or production use for: auxin, gibberellins, ABA, cytokinin, and ethylene. 37. What chemical characteristic makes ethylene different from the other traditional hormones? 38. On what hormone do almost all chemical growth regulators act? How do they affect this hormone?
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  • Fall '19
  • Annual plant, Perennial plant, phytochrome

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