To study the effect of grafting on the growth and flowering of spray chrysanthemum, Artemisia annua was used as the rootstock and eight spray chrysanthemum varieties 'Zhongshan Jinyang' ('ZSJY'), 'Zhongshan Xinmolian' ('ZSXML'), 'Zhongshan Xuerong' ('ZSXR'), 'Zhongshan Yinggui' ('ZSYG'), 'Zhongshan Zaohong' ('ZSZH'), 'Zhongshan Zhiying' ('ZSZY'), 'Zhongshan Zisongguo' ('ZSZSG'), and 'Zhongshan Ziwei' ('ZSZW') were used as the scions. The plant survival ratio, growth index (crown width, crown circumference, and biomass), and flowering characteristics (total inflorescences per plant, flower diameter, fresh and dry weight of single flowers, and flowering period) were studied after grafting. We found that for variety ‘ZSYG’, the grafted plants showed a 58.4% increase in crown width, a 68.7% increase in crown circumference, a 61.8% increase in the dry weight of the scion, a 108.4% increase in the dry weight of root, a 72.3% increase in the total dry weight, a 28.3% increase in root/shoot, and a 135.2% increase in the total inflorescences per plant compared to those in the own-rooted plants. Grafting can not only promote plant growth and increase plant biomass, and the total inflorescences per plant of spray chrysanthemum but also lengthen the ornamental period of spray chrysanthemum by advancing flowering and delaying the final flowering period. The budding period can be advanced by 13 d, the final flowering period can be delayed by 4 d, and the ornamental period can be increased by 10 d. Therefore, grafting facilitates the growth of spray chrysanthemums, advances flowering, and prolongs the ornamental period.

嫁接对喷菊花青蒿生长和开花的影响研究用作砧木的8个喷菊品种有‘中山金阳’（‘ZSJY’）、‘中山新磨莲’（‘ZSXML’）、‘中山雪绒’（‘ZSXR’）、‘中山英桂’（‘ZSYG’）、使用'中山早红'('ZSZH')、'中山智英'('ZSZY')、'中山紫松果'('ZSZSG')和'中山紫薇'('ZSZW')作为接穗。对嫁接后的植株成活率、生长指数（冠宽、冠围、生物量）和开花特性（单株总花序数、花径、单花鲜干重、花期）进行研究。我们发现，对于品种“ZSYG”，嫁接后的植株冠宽增加了 58.4%，冠周增加了 68.7%，接穗干重增加61.8%，根干重增加108.4%，总干重增加72.3%，根/茎增加28.3%，总干重增加135.2%每株植物的花序与自生植物的花序相比。嫁接不仅可以促进植物生长，增加植物生物量，增加喷菊单株总花序，还可以通过提前开花和延迟最终开花来延长喷菊的观赏期。花蕾期可提前13 d，终花期可推迟4 d，观赏期可延长10 d。因此，嫁接有利于喷菊花的生长，促进开花，延长观赏期。与自生植物相比，根干重增加4%，总干重增加72.3%，根/茎增加28.3%，单株总花序增加135.2%。嫁接不仅可以促进植物生长，增加植物生物量，增加喷菊单株总花序，还可以通过提前开花和延迟最终开花来延长喷菊的观赏期。花蕾期可提前13 d，终花期可推迟4 d，观赏期可延长10 d。因此，嫁接有利于喷菊花的生长，促进开花，延长观赏期。与自生植物相比，根干重增加4%，总干重增加72.3%，根/茎增加28.3%，单株总花序增加135.2%。嫁接不仅可以促进植物生长，增加植物生物量，增加喷菊单株总花序，还可以通过提前开花和延迟最终开花来延长喷菊的观赏期。花蕾期可提前13 d，终花期可推迟4 d，观赏期可延长10 d。因此，嫁接有利于喷菊花的生长，促进开花，延长观赏期。与自生植物相比，每株植物的总花序增加了 135.2%。嫁接不仅可以促进植物生长，增加植物生物量，增加喷菊单株总花序，还可以通过提前开花和延迟最终开花来延长喷菊的观赏期。花蕾期可提前13 d，终花期可推迟4 d，观赏期可延长10 d。因此，嫁接有利于喷菊花的生长，促进开花，延长观赏期。与自生植物相比，每株植物的总花序增加了 135.2%。嫁接不仅可以促进植物生长，增加植物生物量，增加喷菊单株总花序，还可以通过提前开花和延迟最终开花来延长喷菊的观赏期。花蕾期可提前13 d，终花期可推迟4 d，观赏期可延长10 d。因此，嫁接有利于喷菊花的生长，促进开花，延长观赏期。喷菊花​​单株总花序数的增加，也通过提前开花和延迟末花期延长喷菊花的观赏期。花蕾期可提前13 d，终花期可推迟4 d，观赏期可延长10 d。因此，嫁接有利于喷菊花的生长，促进开花，延长观赏期。喷菊花​​单株总花序数的增加，也通过提前开花和延迟末花期延长喷菊花的观赏期。花蕾期可提前13 d，终花期可推迟4 d，观赏期可延长10 d。因此，嫁接有利于喷菊花的生长，促进开花，延长观赏期。