Effects of double rootstock grafting on watermelon rhizosphere soil biological properties and bacterial community structure
GUO Song
YU Rong
DONG Rui
LI Cheng
TIAN Mei
Abstract：In order to improve the quality of grafted watermelon and the resistance to soil bome diseases in continuous cropping,reveal the mechanism of double rootstock grafting to enhance plant resistance,and discuss the effects of double rootstock grafting on biological properties and bacterial community structure of watermelon rhizosphere soil,the biologi-cal characteristics and bacterial community structure of rhizosphere soil grafted with double rootstocks and interstocks were analyzed based on high-throughput sequencing technology with watermelon single rootstock as control.The results showed that microbial biomass C,microbial biomass N and microbial biomass P in rhizosphere soil of double rootstock grafting treatment were significantly higher than those of other treatments.The actinomycetes in rhizosphere soil increased by 36.64％;The activities of rhizosphere soil of β-glucosidase,aminopeptidase,and phosphatase increased by 9.01％,16.07％and 13.14％,respectively.Double rootstock grafting has a rich number of unique OTUs and different proportions of common dominant bacteria.Double rootstock grafting improved the availability of nutrients in the rhizo-sphere soil of watermelon,the activity of phosphatase and other enzymes in the rhizosphere soil,improved the fertility of the plant rhizosphere soil microenvironment,and enhanced the resistance of grafted watermelon.It provides a theoretical basis for further using double rootstock grafting technology.
Keywords：WatermelonInterstockDouble rootstock graftingSoil biological propertiesBacterial community structure
Publication Date：2023-12-05
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 59-63 )