盐度和光因子对大亚湾木榄种胚萌根的影响

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探讨了不同温度、砂培和水培条件下木榄(Bruguiera gymnorhiza)种胚萌根的情况。结果表明:砂培(黑暗)7-28d,木榄种胚的各盐度处理均能萌根展叶;水培(昼夜交替)下的木榄种胚只能在淡水和低盐度处理中萌根;水培(全光照)下所有盐度处理均无法萌根。提示光因子对木榄种胚萌根有抑制作用,低盐度对其萌根有利。
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