Studying on the fat conversion of Carya cathayensis in the course of maturity, we get the result that the stage of fat accumulation during the fruit growth and development is between late July and mid September.

• 通过山核桃成熟过程中油脂变化规律的研究表明:山核桃果实生长发育过程中,七月下旬至九月中旬为油脂积累期。