The investigation of seed and embryo structure with soft X-ray indicates that germination barriers of triploid watermelon are seedcoat related, and that hydropriming can overcome these barriers.

• 用软-X射线对无籽西瓜种子和胚结构的分析表明，萌发障碍的形成主要与种皮有关，吸水促萌提高了种胚的活力，克服了种皮造成的萌发障碍。