(1.Institute of Science and Technology for Rural Revitalization，Heilongjiang Academy of Agricultural Sciences，Harbin，〖JP2〗Heilongjiang 150086；2.Horticultural Sub-academy,Heilongjiang Academy of Agricultural Sciences，Harbin，Heilongjiang 150069；3.Keshan Agricultural and Sideline Base，Air Force Staff Department，Northern War Zone，Keshan，Heilongjiang 161600)
To guide the early spring eggplant production in Heilongjiang Province,taking ‘Long za eggplant 9’ as test material，adopted to the ‘Tuft-type’ compared to the routine pruning and researched the relationship between the ‘Tuft-type’ and the plant vegetative growth and the yield.The results showed that compared to CK，the fresh weight and dry weight of ‘Tuft-type’ eggplant root has increased by 66.12% and 56.04%，and the sub-root was obviously more developed；‘Tuft-type’ mode was better than the traditional one on the yield，the first fruit number，the second fruit number and the third fruit number of ‘Tuft-type’ mode has enhanced by 111.78%，148.75% and 42.75% than CK respectively.Because of the more fruit number by ‘Tuft-type’，the yield has increased significantly，the pre-production has enhanced by 48.96% than CK and the total production has enhanced by 27.09%.