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| Effect of Pumpkin Rootstock on Growth and Cadmium Accumulation Characteristics of Grafted Cucumber Seedlings |
| YANG Helian，ZHANG Yuguang，GUO Weili，CHEN Bihua *，LI Xinzheng，ZHOU Junguo |
| School of Horticulture and Landscape Architecture，Henan Institute of Science and Technology，Xinxiang 453003，Henan，China |
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Abstract In order to select and breed cadmium-tolerant pumpkin rootstock germplasm resources，this
experiment grafted different pumpkin rootstocks with cucumber‘Jinyun 301’under cadmium stress；and
analyzed the growth and cadmium accumulation characteristics of grafted cucumber seedlings with different
rootstocks．The results showed that under cadmium stress，taking‘Gezhen No.1’as rootstock， the survival
rate of grafted cucumber seedling was the highest， reaching 92.86%．The dry and fresh weight of root，stem
and leaf，root system activity，POD and APX activities of leaves were all significantly higher than those of
cucumber self-rooted seedlings．The root cadmium content was the highest and cadmium transfer coefficient
was the lowest．In conclusion，under cadmium stress taking‘ Gezhen No.1’ as rootstock to graft cucumber are
beneficial to cucumber growth and can reduce the damage of cadmium to plant upper part．Therefore，‘Gezhen
No.1’can be used as a good cadmium-tolerant rootstock for extension and application．
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Received: 11 December 2021
Published: 15 April 2022
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