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Seedless Watermelon Transplant Production Guidelines

Table of Contents. IntroductionSeed TraysSoil MixesTray PreparationSeeding Germination ChambersGreenhouse Growing. Introduction. Triploid (seedless) watermelon seed have more exact growing requirements than diploid (seeded) watermelonFailure to provide optimum growing practices can result in:reduced seed germinationuneven seed germination and transplant sizeleggy/elongated transplantsweaker plants resulting in yield reduction.

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Seedless Watermelon Transplant Production Guidelines

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    1. Seedless Watermelon Transplant Production Guidelines Dr. Richard L. Hassell Clemson University Coastal Research and Education Center Charleston, South Carolina Rhassel@clemson.edu Dr. Jonathan R. Schultheis North Carolina State University Department of Horticultural Science Raleigh, North Carolina jonathan_schultheis@ncsu.edu

    2. Table of Contents Introduction Seed Trays Soil Mixes Tray Preparation Seeding Germination Chambers Greenhouse Growing

    3. Introduction

    5. Seed Trays

    13. Soil Mixes Choose as coarse a mix as possible for the tray chosen. (Examples are: Metro-Mix 300, Fafard Professional No 2, Pro-Mix BX) Do not use a plug mix! -Plug mixes are too fine. -A fine mix makes it easy to over water making less oxygen available to the roots

    16. Tray Preparation 1. Fill trays 24 hours before seeding. 2. Wet trays to field capacity. 3. Let trays stand 24 hours before seeding to drain excess water. 4. If warm water is not available, place trays in area where temperatures of the mix are at least 850F before seeding.

    20. Seeding

    21. Seeding

    22. Seeding

    33. Germination Conditions Seed Germination Takes Place In Two Stages A. When The Root Emerges (Germ Rooms Only) B. When The Hook Appears (Greenhouse Only) Uniform Soil Temperature In Germ Room Must Be Maintained A. Seedless Need 850F

    34. Germination Conditions Germination Dependent On Moisture A. Too Much Inhibits Oxygen B. Too Little Prevents Seed Swell Apply A Cover Of Vermiculite, Plug Media, Sand, Perlite

    38. Greenhouse Growing

    39. Greenhouse

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