The aim of this study was to investigate the metaxenia effect of pollen grain hormones of date palm pollinators on the hormones of different stages of fruit growth. The relationships between auxin, cytokinin, gibberellin and abscisic acid hormones of ‘Shahani’, ‘Kabkab’, ‘Zahedi’, ‘Beraem’, ‘Faryab’, ‘Sheikhali’, ‘Fard’ and ‘Jarvis’ pollen grains with the amount of the same hormones in different stages of ‘Piarom’ fruit development were studied. The results showed that pollen grains of different date palm pollinators have different amounts of these hormones. Pollen grains of ‘Fard’ and ‘Sheikhali’ cultivars have higher amounts of hormones compared to other cultivars. The amount of these hormones was also very variable at different stages of fruit growth. The highest amount of hormones in different stages of ‘Piarom’ date fruit growth was observed in trees that were pollinated with pollen grains of ‘Fard’ and ‘Sheikhali’ cultivars. Also the amount of these hormones in pollen grains and different stages of fruit growth had a positive linear relationship. The positive correlation between pollen grains hormones and hormones of different stages of fruit growth confirms the metaxenia effect of pollen grains on the characteristics of ‘Piarom’ date fruit. The presence of more hormones in the fruit, which is directly related to the amount of these hormones in pollen grains, improves the quantity and quality of date palm fruits.

本研究的目的是研究枣椰树授粉媒介的花粉粒激素对果实生长不同阶段激素的影响。'Shahani'、'Kabkab'、'Zahedi'、'Beraem'、'Faryab'、'Sheikhali'、'Fard'和'Jarvis'花粉粒的生长素、细胞分裂素、赤霉素和脱落酸激素与花粉量的关系研究了“Piarom”果实发育不同阶段的相同激素。结果表明，不同枣椰树授粉者的花粉粒具有不同数量的这些激素。与其他品种相比，'Fard' 和 'Sheikhali' 品种的花粉粒含有更多的激素。在水果生长的不同阶段，这些激素的含量也非常不同。在用'Fard'和'Sheikhali'品种的花粉粒授粉的树中观察到'Piarom'枣果实生长的不同阶段的最高量的激素。花粉粒中这些激素的含量与果实生长的不同阶段也呈正线性关系。花粉粒激素与果实不同生长阶段激素呈正相关，证实了花粉粒对'Piarom'枣果实特性的后生效应。果实中存在更多的激素，这与花粉粒中这些激素的含量直接相关，提高了枣椰果的数量和质量。花粉粒中这些激素的含量与果实生长的不同阶段也呈正线性关系。花粉粒激素与果实不同生长阶段激素呈正相关，证实了花粉粒对'Piarom'枣果实特性的后生效应。果实中存在更多的激素，这与花粉粒中这些激素的含量直接相关，提高了枣椰果的数量和质量。花粉粒中这些激素的含量与果实生长的不同阶段也呈正线性关系。花粉粒激素与果实不同生长阶段激素呈正相关，证实了花粉粒对'Piarom'枣果实特性的后生效应。果实中存在更多的激素，这与花粉粒中这些激素的含量直接相关，提高了枣椰果的数量和质量。