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Bio CH21
Biology CH21 Plant Growth and Disease
Term | Definition |
---|---|
annual | a plant that completes its life cycle within one year |
biennial | a plant that produces seeds at the end of the second year of growth and then dies |
day-neutral plant | plants in which flowering doesn’t depend on day length |
fertilizer | a substance made of minerals that improves soil for plant growth |
gravitropism | the response of a plant to gravity |
long-day plant | plants that flower when the day length rises above 12 to 14 hours |
perennial | a plant that doesn’t die at the end of one or two years of growth |
phototropism | the growth of a plant in response to light |
short-day plant | plants that flower when the day length falls below 12 to 14 hours |
thigmotropism | a plant growth response to contact |
tropism | a movement of a plant caused by a change in growth as a response to a stimulus |