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为了解和研究该无性系种子园花期规律,在生产区选择9 株不同产地无性系样株进行连续3 a的观察试验,结果表明, 该园雌雄球花花期同步性较好,花期受气候因子影响很大。
In order to understand and study the law of flowering in this clonal seed orchard, 9 clones of clones from different habitats were selected and observed for 3 consecutive days in the production area. The results showed that the synchronization of flowering of the male and female flowers was good and the flowering time was affected by climatic factors great influence.