Abstract: Five rootstocks：3309M，1103P，110R，5BB and SO4 were used as rootstocks and two Vitis vinifera cultivars‘Ruidu Xiangyu’and‘Ruidu Hongyu’as scions to evaluate the vine growth characteristics，fruit quality and dynamic regularity of endogenous hormones for different scion-rootstock combinations. The results showed that (1) SO4，5BB and 110R enhanced vine growth，but Ruidu Hongyu/ 110R’s scion thickness/rootstock thickness is 1.56，showed poor graft compatibility. (2) Both SO4 and 5BB improved the fruit TSS of‘Ruidu Xiangyu’；all the rootstocks enhanced the fruit TA of‘Ruidu Hongyu’，reduced the Brix/TA ratio and improved the fruit sweet-sour balance. (3) Higher levels of growth promoting hormones including ZR，IAA and GA3 were detected during shoot rapid growth and veraison than during first blooming and fruit ripening. The combinations with 110R and SO4 showed significant high promoting hormone content in both leaf and shoot；while the combinations with 5BB showed low promoting hormone content in leaf，but high promoting hormone content in shoot，and high ZR/GA3 ratio during shoot rapid growth. Compared with all the other combinations，‘Ruidu Hongyu’/SO4 had the lowest ABA content during shoot rapid growth，explained its vigorous growth. Combinations with 110R，SO4 and 5BB showed higher ZR/GA3 ratio，lower ABA/ZR + IAA + GA3 than combinations with 3309M and 1103P. ABA contents of combinations with SO4 declined during growing season，prompting the shoot growth during the second growth peak. On the contrary，ABA contents of combinations with 3309M and 5BB were at high level during the growing season，impaired the vine’s growth. Above all，the offspring of V. berlandieri Planchon × V. riparia Michixi（SO4 and 5BB）showed good graft compatibility with Vitis vinifera，promoted scion growth，fruit quality and taste.

Key words: grapevine, scion-rootstock combination, endogenous hormone, vine growth