所谓伪单性结实 ,是指果树开花授粉、受精后 ,胚珠（种子）在发育过程中 ,早期退化或解体 ,而形成无种子的果实。这种现象的产生 ,与果实的内源及外源激素种类、浓度密切相关。在自然状态下 ,灰枣品种伪单性结实率为３%。但利用３—吲哚—乙酸、赤霉素、α—萘乙酸、细胞分裂素 The so-called pseudo-unisex, refers to the fruit tree flowering pollination, fertilization, the ovule (seed) in the development process, the early degradation or disintegration, and the formation of seedless fruit. This phenomenon is closely related to the endogenous and exogenous hormone types and concentrations in fruit. In the natural state, the gray jujube variety pseudo-single seed set rate of 3%. However, 3-indole-acetic acid, gibberellic acid, α-naphthaleneacetic acid and cytokinin were used