The results showed: the major causes were obstacle of seed vessel, seed embryo dormancy and post-maturation;

结果表明，引起砂梨种子休眠的主要有种皮障碍、种胚休眠和种胚后熟；

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The results showed: the major causes were obstacle of seed vessel, seed embryo dormancy and post-maturation;

结果表明，引起砂梨种子休眠的主要有种皮障碍、种胚休眠和种胚后熟；

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