Term
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Definition
| postive or negative plant response to an external stimulus such as touch, light or gravity (pg. 756) |
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Term
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Definition
| plant hormone that causes plant leaves and stems to exhibit positive phototropisms |
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Term
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Definition
| a plant's response to the lengths of daylight and darkness each day |
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Term
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Definition
| plant that generally requires short nights-less than ten to 12 hours of darkness- to begin the flowering process |
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Term
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Definition
| plant that generally requires long nights- 12 or more hours of darkness- to begin the flowering process |
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Term
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Definition
| plant that doesn't require a specific photoperiod and can begin the flowering process over a range of night lengths |
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