中国草地学报2025，Vol.47Issue(8)：96-105,10.DOI:10.16742/j.zgcdxb.20240470
多菌灵对青贮玉米生理特性和细菌群落的影响
Effects of Carbendazim on the Physiological Characteristics and Bacterial Community of Silage Maize
摘要
Abstract
This study aimed to reveal the effects of three carbendazim concentrations on physiological characteristics and bacterial community of silage maize in three maturity stages(big trumpet stage,milk stage,and dough stage).Results showed that the net photosynthetic and transpiration rate at the big trum-pet stage and dough stage decreased by 9.50 µmol/(m2·s)and 15.2 µmol/(m2·s),1.75 mmol/(m2·s)and 2.59 mmol/(m2·s),respectively(P<0.05)compared with milk stage.Compared with at the big trumpet stage and dough stage,the moisture retention capacity at the milk stage increased by 24.50%and 13.20%,respectively(P<0.05).The numbers of aerobic bacteria,Escherichia coli,and lactic acid bacte-ria at the milk stage and dough stage were significantly reduced(P<0.05)compared with the big trumpet stage.The concentration of carbendazim had no significant impact on the physiological characteristics or bacterial numbers of silage maize.At the genus level,the four bacteria with the highest relative abundance were Sphingomonas,Massilia,Rhodococcus,and Frigoribacterium.Different concentrations of carben-dazim significantly affected the relative abundances of Pseudonocardia,Clostridium_sensu_stricto_1,Friedman-niella,unclassified_o_Micrococcales,Luteimonas,Steroidobacter,and Acinetobacter(P<0.05).Consider-ing the utilization of maize silage and the need to prevent the proliferation of drug-resistant bacteria,this study recommends applying low concentration carbendazim on silage maize.关键词
青贮玉米/多菌灵/生育期/生理特性/细菌群落Key words
Silage maize/Carbendazim/Maturity stage/Physiological characteristic/Bacterial com-munity分类
农业科技引用本文复制引用
唐国建,杨秋,徐庆标,杨金梅,蒙元燕,张小龙,许留兴..多菌灵对青贮玉米生理特性和细菌群落的影响[J].中国草地学报,2025,47(8):96-105,10.基金项目
六盘水市科技创新平台建设项目(52020-2024-PT-2) （52020-2024-PT-2）
云南省基础研究计划青年项目(202201AU070161) （202201AU070161）
云南省地方本科高校基础研究联合专项(202301BA070001-120) （202301BA070001-120）
贵州省科技厅基础研究计划(自然科学)青年引导项目(黔科合基础QN[2025]265) （自然科学）
