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The Life Cycle of Weeds


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Key: I, soil seed bank; II, seedling recruitment; III, competition & seed production; IV, dispersal

 

Diagram of the Annual Weed Life Cycle
The schematic diagram above represents the life cycle of an annual weed.  At the most basic level, the life cycle of an annual weed can be broken down into two important phases:

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Time scales of studing weed ecology and biology:

-annual cycles

-plant life cycles
----annuals
--------summer
--------winter
----biennial
----perennial

-evolutionary time

 

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