Influence of low-vacuum helium cold plasma pre-treatment on the rooting and root growth of zoysiagrass (Zoysia Willd.) stolon cuttings

doi:10.1088/2058-6272/aaf368

Plasma Sci. Technol. ›› 2019, Vol. 21 ›› Issue (5): 055504.doi: 10.1088/2058-6272/aaf368

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Influence of low-vacuum helium cold plasma pre-treatment on the rooting and root growth of zoysiagrass (Zoysia Willd.) stolon cuttings

Ling LI (李玲) ¹, Hailin GUO (郭海林) ¹, Junqin ZONG (宗俊勤) ¹, Jingbo CHEN (陈静波) ¹, Yi WANG (汪毅)¹, Jianjian LI (李建建) ¹, Dandan LI (李丹丹)¹, Hanliang SHAO (邵汉良) ² and Jianxiu LIU (刘建秀) ¹

¹Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, People’s Republic of China
² Changzhou Zhongke Changtsi Plasma Processing Apparatus Plasma Technology Corporation, Changzhou 213022, People’s Republic of China

Received:2018-09-01 Published:2018-11-23
Supported by:
This work was supported by the Jiangsu Provincial Public Institutions Program for Research Conditions and Building Capacity (No. BM2015019), the Foundation of Jiangsu Key Laboratory for the Research and Utilization of Plant Resources (Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, No. JSPKLB201606), and National Natural Science Foundation of China (No. 31572155).

Abstract

Abstract:

The influence of low-vacuum helium cold plasma treatment on the rooting percentage, root growth and physiochemical properties of zoysiagrass stolon cuttings was studied. Zoysiagrass stolon cuttings were pre-treated with 0, 100, 200, 300 and 400 W of cold plasma for 15 s. The cold plasma positively stimulated rooting and improved the root growth of the zoysiagrass stolon cuttings, and the 300 W treatment produced the best effect. The rooting percentage and root growth parameters, including the root length, total root surface area, total root volume, average root diameter, and root dry weight, significantly improved in response to the cold plasma treatment. In addition, the water uptake and relative conductivity of the stolon cuttings increased significantly in response to the cold plasma treatment. The results revealed that cold plasma-stimulated rooting and root growth appear to be a consequence of the improvement in permeability and water absorbing capacity of zoysiagrass stolon cuttings. The results of the present study will provide inspiration and support for the application of cold plasma in the vegetative propagation of plants.

Key words: cold plasma, zoysiagrass, stolon cutting, rooting, root growth

Ling LI (李玲) 1, Hailin GUO (郭海林) 1, Junqin ZONG (宗俊勤) 1, et al.. Influence of low-vacuum helium cold plasma pre-treatment on the rooting and root growth of zoysiagrass (Zoysia Willd.) stolon cuttings[J]. Plasma Sci. Technol., 2019, 21(5): 055504.

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Influence of low-vacuum helium cold plasma pre-treatment on the rooting and root growth of zoysiagrass (Zoysia Willd.) stolon cuttings

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