CSS302-Lecture7 - Hemp Dogbane Yellow Nutsedge-2 Depth of...

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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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Seed Polymorphism The production of seeds of differing morphologies and/or behaviors on the same parent plant. – Cocklebur - 
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Seed Polymorphism – Common Lambsquarters »Brown seed--____________ strategy »Black seed--_____________ strategy opportunistic--______________ seasonal--___________________
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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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D. Vegetative Reproductive Characteristics of Weeds 1. Spread of Vegetative Tissue 2. Depth of Vegetative Tissue 3. Depth of Shoot Development 4. The Bud Reserve 5. Age When Vegetative Tissue Develops
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1. Spread of Vegetative Tissue Quackgrass - 10 ft/year Canada Thistle - ____________ Perennial Sowthistle - _____________
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Unformatted text preview: Hemp Dogbane - _______________ Yellow Nutsedge - _______________-2. Depth of Vegetative Tissue ❖ Quackgrass - 4-6 inches ❖ Yellow Nutsedge - <12 inches ❖ Common Milkweed - ___________ ❖ Field Bindweed - ______________ 3. Depth of Shoot Development o Quackgrass - <12 inches . Canada Thistle - ___________ . Field Bindweed - ___________ 4. The Bud Reserve ✻ Quackgrass - ____ buds/plant/ year (dormant) ✻ Yellow Nutsedge - ____ tubers/year, ____ million tubers per acre ✻ Canada Thistle, Hemp Dogbane, and Perennial Sowthistle can produce new shoots from <_______ of root. 5. Age When Vegetative Tissue Developes ■ Quackgrass - 6-8 weeks ■ Canada Thistle - _____________ ■ Yellow Nutsedge - _____________ Vegetative Reproduction ■ General Concepts: – Primary means of reproduction in many species – Generally limited to a localized area – Favored by a stable environment...
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This note was uploaded on 10/28/2010 for the course CSS CSS302 taught by Professor Jimkells during the Fall '08 term at Michigan State University.

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CSS302-Lecture7 - Hemp Dogbane Yellow Nutsedge-2 Depth of...

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