CSS302-Lecture6 - Four Processes of Reproduction of Weeds...

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Four Processes of Reproduction of Weeds A. Seed Production B. Dissemination of Seed C. Germination of Seed D. Vegetative Reproduction
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Four Processes of Reproduction of Weeds A. Seed Production B. Dissemination of Seed C. Germination of Seed D. Vegetative Reproduction
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C. Germination of Weed Seed 1. Conditions necessary for germination: Always required Water Oxygen Suitable temperature Often Required Light
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Light Requirement for Germination Present in many weed species In general : Small-seeded weeds - sensitive to light Large-seeded weeds - not sensitive to light Ecological importance: Indicates proximity to soil surface (or recent soil disturbance) Indicates absence of an overstory Involves phytochrome
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Strategies to Manage the Light Requirement of Weeds Seedbank Reduction Minimize Seedling Emergence Delayed crop planting Tillage in the dark ________________________ Tillage implements with light barriers
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CSS302-Lecture6 - Four Processes of Reproduction of Weeds...

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