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应用高效液相色谱测定法测定了枣花期和果实生长发育期内源生长素（ＩＡＡ）、赤霉素（ＧＡ）和脱落酸（ＡＢＡ）在枣叶、枣果和枣落果中的含量，分析了这些内源激素含量变化对枣果生长发育的影响．在果实生长发育期，枣果中ＧＡ含量高于同期枣叶和落果中的含量，保证果实生长和碳同化物向果实转移，随ＧＡ含量迅速提高，枣果开始快速生长．枣果发育期内ＩＡＡ含量有两次低谷期，枣花受精后，幼果中ＩＡＡ含量开始下降，５月２０日前后为其第一个低谷期，含量为１．７１μｇ／１０ｇＦＷ，其后含量开始回升，６月２０日前后为其第二个低谷期，含量为２．５８μｇ／１０ｇＦＷ，此时与叶片中ＩＡＡ含量差异最大．ＡＢＡ含量在枣叶和枣果中含量很低，因此枣座果后，幼果中低含量的ＩＡＡ和ＡＢＡ不利于枣胚的发育，导致胚早期败育，造成大量落果，７月１０日后，枣果中较高的ＡＢＡ有利于果实中物质转化和碳水化合物的积累．内源ＩＡＡ、ＧＡ和ＡＢＡ的平衡作用有利于枣果的生长发育．
The contents of IAA, GA and ABA in Jujube, Zizyphus jujuba and Zizyphus jujuba were determined by HPLC at the flowering stage and during fruit growth and development The effects of these changes of endogenous hormones on the growth and development of jujube. During fruit growth and development, the content of GA in jujube was higher than that in jujube and deciduous fruit during the same period to ensure the growth of fruit and the transfer of carbon assimilate to the fruit. With the rapid increase of GA content, jujube began to grow rapidly. IAA content of Jujube during the development period has two troughs, jujube flower juvenile IAA content began to decline before and after May 20 for the first trough period, the content of 1.71μg / 10gFW, then the content Began to rise, around June 20 for the second trough period, the content of 2.58μg / 10gFW, at this time and leaves the largest difference in IAA content. ABA content in the jujube and jujube fruit content is very low, so jujube fruit, jujube low content of IAA and ABA detrimental to the development of jujube embryos, resulting in early embryo abortion, resulting in a large number of fruit drop, July 10, The higher ABA in jujube is beneficial to the conversion of fruits and the accumulation of carbohydrates. The balance of endogenous IAA, GA and ABA is beneficial to the growth of jujube.