The chilling requirement of the four lily bulbs as follow: Lilium Asiatic hybrids need 30 days low temperature treatment at least, but for Lilium Oriental hybrids, we must exposure them to low temperature above 90 days.

 
  • 明确了四种百合的确切需冷量。 亚洲百合至少需30 天以上低温处理,东方百合则至少需处理90 天以上。
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