Integrated application of synthetic community reduces consumption of herbicide in field Phalaris minor control

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外文摘要：·Herbicide-based weeds control impacts wheat crops as well.·SynComs of Pseudomonas strains reduce the need for high-dose herbicides.·100％Axial provides less weed control compared to 75％Axial with C4 SynCom.·Axial 75％with C4 SynCom promotes wheat growth than the 75％Axial alone.To address environmental concerns and manage resistant weeds,there is a growing demand for eco-friendly altema-tives.In this study,we propose the integration of synthetic communities(SynComs)to reduce herbicide consumption.Four SynComs,consisting of bacteria isolated from weed or wheat rhizospheres,were first evaluated under greenhouse conditions.All SynComs enhanced wheat growth,which was manifested by increased Soil Plant Analysis Development(SPAD)values and fresh biomass.At the same time,SynCom C4 effectively reduced SPAD values and fresh biomass of the infesting weed,Phalaris minor,when combined with low-dose Axial herbicide.A field trial was then conducted using the C4 SynCom and various doses of Axial(100％,75％,50％,and 25％).Remarkably,the combination of C4 with 50％and 75％Axial significantly improved wheat growth by mitigating the side effects of herbicide on wheat.Weed infestation reduced grain yield by 16％and 25％at the dose of 50％and 75％Axial,respectively.The combination of Axial with C4 rescued up to 22％of grain yield loss under infested weed compared with Axial alone.Our findings suggested that the combination of herbicides with SynComs exhibited synergistic effects for controlling Phalaris minor and promoting wheat growth,so that such combination provides a sustainable and eco-friendly weed control strategy.

外文关键词：

weed controlsynthetic microbial communitiesPhalaris minorwheat growth promotionsynergistic effect

作者：

Amina Hadayat、Zahir Ahmad Zahir、Peng Cai、Chun-Hui Gao

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作者单位：

National Key Laboratory of Agricultural Microbiology,College of Resources and Environment,Huazhong Agricultural University,Wuhan 430070,China

Soil Microbiology and Biochemistry Laboratory,Institute of Soil and Environmental Sciences,University of Agriculture,Faisalabad,Pakistan

基金：

Higher Education Commission,Pakistan in a project under Technology Development Fund ProgramNational Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities of China

项目编号：

TDF-1132100 0902662022ZHQD001

出版年：

2024

DOI：

10.1007/s42832-023-0207-1

土壤生态学快报(英文)

ISSN：

年,卷(期)：2024.6(2)