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Starting Plants: Seeds

Starting Plants: Seeds. Introduction Definition: A seed is a __________________, undeveloped plant A seed contains all the _____________ material necessary for the development of a mature plant Basic parts Seed coat ________________ Food supply in either endosperm or cotyledons.

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Starting Plants: Seeds

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  1. Starting Plants: Seeds Introduction • Definition: A seed is a __________________, undeveloped plant • A seed contains all the _____________ material necessary for the development of a mature plant • Basic parts • Seed coat • ________________ • Food supply in either endosperm or cotyledons

  2. Factors Determining Seed Quality • Three factors important in determining seed quality • The seed is free of ________________ • The seed is viable – able to germinate • The seeds are __________

  3. Factors Determining Seed Quality • Disease-free seed • You do not want to use contaminated seed because it may be very difficult to _____________ the disease from your garden • Generally seedborne diseases are a problem when gardeners collect their own seed • Ways diseases can be carried • On the seed coat • Seed treatments can eliminate • Within the seed • ________ water treatments can eliminate

  4. Factors Determining Seed Quality • Disease-free seed • Some commercial seed companies treat their seeds with ______________________ • Fungicide treated seed is not acceptable in ________________ gardening • Seed packet should contain warning if seed is treated • If seed is _____________ or has powdery substance on it than it was treated with a fungicide • Wear gloves when handling

  5. Factors Determining Seed Quality • Viability • Definition: viability is the percentage of vegetable seed which will _____________________ • Viability refers to is the seed living or respiring • Vegetable seed viability is tested by seed companies and on seed packets the germination percentage and test date are listed • Factors affecting viability • Vegetables naturally differ in their viability • ________________ of the seed will affect viability

  6. The Viability and Longevity of Vegetable Seed

  7. Factors Determining Seed Quality • Seed Purity • Definition: seed purity means that the seed is true-to-type and does not contain undesirable _______________ • The seed are what the package says it is • Contaminants that may occur in seed packets • Seed of the wrong ______________ • Seed of the wrong vegetable species • ____________ seed • ____________ particles or plant parts

  8. Factors Determining Seed Quality • Seed purity and noxious weeds • Definition: noxious weeds are plants that federal, state, or local governments want to prevent from ____________ to and establishing in a particular area • These seed are prohibited from being _______________________ in seed that are commercially sold • Examples • Field bindweed • Canada ____________

  9. Starting Plants: Seeds • Seed purity and collecting your own seeds • It is important to maintain the cultivar __________________ pure when collecting your own seed • Maintaining genetically pure seeds only works for self-pollinated cultivars that are open pollinated • You can not maintain pure seed when: • The parents are __________________ • Wind pollinated vegetables • They can be pollinated by related plants from a distance away • ___________________ pollinated vegetables • They readily cross pollinated

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