As for the gender of grape harvest you mentioned, I think you want to ask the gender of grape plants. Grapes are monoecious plants, that is, the same grape has both females and males. However, studies show that the harvest time of pistil plants and stamen plants may be different in the same variety of grapes. For example, the grape maturity of stamen plants may be about 7- 10 days earlier than that of pistil plants.
Generally speaking, the harvest time and sex of grapes are affected by many factors, including varieties, climatic conditions, growth environment and so on. If more detailed information is needed, it is suggested to consult professional grape planting experts or refer to relevant agricultural resources.