From pollination to overwintering, both ZR and IPA levels showed a decreasing trend.
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Endogenous Hormone Regulation During Key Developmental Stages of <i>Pinus koraiensis</i> Siebold & Zucc. Ovules.
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The sentences
One week after fertilization, the fertilized egg continued to divide, with an increasing trend in IAA content, indicating that the cell division of the fertilized egg cell requires a large amount of IAA.