摘要
以蜀葵与油菜为试材,在铅(Pb)、镉(Cd)胁迫下蜀葵与油菜1∶1间种并喷施不同浓度(0、10^(-7)、10^(-6)、10^(-4) mol·L^(-1))赤霉素(GA_(3)),研究铅、镉胁迫下蜀葵喷施赤霉素与油菜间作对油菜重金属积累的影响,以期为土壤中镉、铅污染治理、农作物品质提升提供参考依据。结果表明:蜀葵喷施GA_(3)后,随赤霉素处理浓度增加,蜀葵和油菜对Pb和Cd的耐性指数呈增加趋势,油菜对Pb和Cd积累量呈下降趋势;蜀葵和油菜超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)随GA_(3)处理浓度增加而增加。在Pb和Cd污染的土壤中,可采用蜀葵喷施赤霉素与油菜间种方式降低油菜重金属积累量,提高油菜地上部分生物量,保证油菜籽质量安全。
Taking hollyhock and rape as experimental materials,the effect of spraying gibberellic(GA)on the accumulation of heavy metals in rape under lead and cadmium stress was studied by using the method of 1:1 intercropping between hollyhock and rape and spraying GAwith different concentrations(0,10^(-7),10^(-6),10^(-4) mol·L^(-1))under lead and cadmium stress,in order to provide reference for the treatment of cadmium and lead pollution in soil,and the improvement of crop quality.The results showed that after spraying GA_(3) on hollyhock,with the increase of GAtreatment concentration,the tolerance index of hollyhock and rape to Pb and Cd increased,and the accumulation of rape to Pb and Cd decreased;superoxide dismutase(SOD),peroxidase(POD),catalase(CAT)of hollyhock and rape increased with the increase of GA_(3) treatment concentration.In the soil polluted by Pb and Cd,the method of spraying GA_(3) with hollyhock and intercropping with rape can be used to reduce the accumulation of heavy metals in rape,improve the aboveground biomass of rape,and ensure the quality and safety of rapeseed.
作者
熊明彪
饶逸驰
王乾鑫
纪丁愈
杨绍平
杨远祥
XIONG Mingbiao;RAO Yichi;WANG Qianxin;JI Dingyu;YANG Shaoping;YANG Yuanxiang(Sichuan Institute of Water Resources Innovation and Development,Chengdu,Sichuan 611230;Office of Academic Research,Sichuan Water Consrevancy Vocational College,Chengdu,Sichuan 611230;College of Environmental Sciences,Sichuan Agricultural University,Chengdu,Sichuan 611130;College of Light Industry and Engineering,Sichuan Technology Business College,Chengdu,Sichuan 611830)
出处
《北方园艺》
CAS
北大核心
2022年第17期17-25,共9页
Northern Horticulture
基金
四川省水利厅科技计划资助项目(川水科2020011)
成都水生态文明建设研究重点基地科研资助项目(2018SST-14)。
关键词
铅、镉胁迫
赤霉素
蜀葵
油菜
积累特性
lead and cadmium stress
gibberellin
hollyhock
rape
accumulation characteristics
