架形对“赤霞珠”酿酒葡萄内源激素的影响

Effects of Frame Shapes on Endogenous Hormones of ‘Cabernet Sauvignon’ (Vitis vinifera L.) Wine Grapes

以贺兰山东麓酿酒葡萄产区的3个典型小产区直立龙干形和厂字形2种架形种植的“赤霞珠”为试材,采用高效液相色谱法测定了不同生育期功能叶片中的6种植物内源激素,研究了在果实发育关键期架形对叶片内源激素的影响,以期为后期开展不同小产区的品质调控提供参考依据。结果表明:在果实发育关键期,不同处理叶片中的6种内源激素含量差异明显。脱落酸(ABA)、吲哚乙酸(IAA)、反式玉米素核苷(TZR)和赤霉素(GA;)共同调节酿酒葡萄果实的成熟和品质,成熟期叶片中的吲哚乙酸和单宁呈显著负相关,高浓度的ABA会抑制IAA的合成积累,且转色期ABA的增加直接影响果实中花色苷的合成。不同小产区的生长势和抗性与果实关键发育期的内源激素的比值具有明显的关联性。

The ‘Cabernet Sauvignon’ planted in three typical district wine grapes in the eastern foot of Helan Mountain was taken as experimental materials, six plant endogenous hormones in functional leaves at different growth stages were determined by high performance liquid chromatography(HPLC),and the effects of frame shape on endogenous hormones in leaves at key fruit development stages were studied, in order to provide reference for quality control in different district.The results showed that significant difference among the 6 endogenous hormones in the leaves of different treatments at different key stages of fruit development.ABA,IAA,TZR and GA;jointly regulate the ripening and quality of wine grape fruits.There was a significant negative correlation between IAA and tannin in leaves at fruit ripening.High concentration of ABA inhibited the synthesis and accumulation of IAA,and the increase of ABA at veraison directly affected the synthesis of anthocyanins in fruits.The growth potential and resistance of different district were significantly correlated with the ratio of endogenous hormones at key fruit development stage.