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为了给生产提供理论依据,笔者观察了核桃在保定地区雌花形态分化和发育的动态。观察结果表明核桃雌花形态分化和发育可分为6个时期。且其分化和发育经历时间较长。在分化过程中,花萼退化,雌花为子房下位花,果实为坚果。根据观察结果,笔者对该地区的核桃生产提出了一些建议。
In order to provide a theoretical basis for production, the author observed the dynamics of female flower morphological differentiation and development in Baoding. The results show that the morphological differentiation and development of female flower can be divided into 6 periods. And its differentiation and development experienced a longer time. In the differentiation process, the calyx degenerated, the female flower is the next ovary flowers, fruit is nuts. According to the observation, the author made some suggestions on the production of walnut in the area.