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  • Author or Editor: Warley M. Nascimento x
  • HortTechnology x
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The effects of seed priming and seed orientation on seedcoat adherence and seedling development of containerized muskmelon transplants were investigated. Seeds of muskmelon `Top Net SR' were primed for 6 days in darkness at 25 °C in an aerated solution of KNO3 (0.35 m). Primed and nonprimed seeds were individually planted in Styrofoam trays in the greenhouse. Seeds were carefully oriented with the radicle down, up, or in the horizontal position, and covered with 0.5 cm of the growing mix. Seed priming and seed orientation affected both seedcoat adherence and seedling development, and interaction between priming and orientation was significant for seedcoat adherence. Our data indicate that seed priming can minimize seedcoat adherence during emergence of muskmelon seeds.

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The effects of seed priming on seedling development of muskmelon (Cucumis melo L.) under laboratory and greenhouse conditions were studied. Seeds of `Top Net, SR' muskmelon were primed for 6 days in darkness at 77 °F (25 °C) in KNO3 (0.35 m) aerated solution. After germination in petri dishes at 77 °F, primed and nonprimed seeds were transferred to either paper towels (laboratory study) or trays, which were placed in greenhouse conditions. Leaf area and fresh and dry mass of roots and shoots were measured at 15 and 30 days. In germination under laboratory conditions, primed seeds germinated ≈16 and 60 hours earlier than nonprimed seeds at 77 °F and 63 °F (17 °C), respectively. Priming caused no beneficial effect on shoot and root development either in laboratory conditions or during transplant production in the greenhouse.

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