湖南农业大学学报（自然科学版）2023，Vol.49Issue(6)：694-701,8.DOI:10.13331/j.cnki.jhau.2023.06.010
不同品种(系)油菜对锑的富集转运特性
Enrichment and transport characteristics of antimony in different varieties(lines)oilseed rape
摘要
Abstract
A field experiment was conducted to investigate the growth of 29 varieties(lines)of Brassica napus L.cultivated in antimony-contaminated fields and the absorbing and transporting capacity of root,stem,leaf,pod,and seed to antimony.The results indicated that Changxiangyou 3 exhibited significantly higher dry weight per plant(126.84 g)compared to other tested oilseed rape,demonstrating its excellent growth advantage.Antimony contents in rape leaves,pods,roots,stems and seeds decreased successively with the highest concentration found in leaves as the primary site for antimony accumulation in rape plants.There were positive correlation(P<0.01)between antimony contents in stems,leaves,pods and seeds with that in roots.The positive correlation were also found between antimony contents in seeds with both root and stem concentrations(P<0.01).These findings suggested continuous accumulation of antimony within rape seeds through upward transportation from roots to stems.Nanyouza 1 had the highest biological enrichment coefficient for antimony at 1.11 while Miyou518 had the lowest at 0.06 among the tested varieties(lines),which indicated they belonged to high accumulation and low accumulation varieties respectively,and the antimony mass fraction of their grains were only 0.38 and 0.22 mg/kg,making them suitable choices for remediation of antimony-contaminated soil.The transport coefficients from stem to leaf(TFSL),stem to pod(TFSP),stem to seed(TFSS),root to stem(TFRS),pod to seed(TFPS),leaf to pod(TFLP),and leaf to seed(TFLS)showed a decreasing trend.Antimony content in rape seeds demonstrated positive correlation with TFRS(P<0.05),TFPS(P<0.01),TFLS(P<0.01)and TFSS(P<0.01),while showing negative correlation with TFSP(P<0.01).These results together indicated that the content of antimony in rape seed was primarily determined by the ability of antimony in pod and leaves to be transported to the seeds.关键词
油菜/锑/品种筛选/富集/转运Key words
oilseed rape/antimony/variety screening/accumulation/transport分类
农业科学引用本文复制引用
白婧,向国红,段仁燕,刘宏辉,陈琳玉,孟杰,卢丹,漆佳文,张文,罗育才,刘显军..不同品种(系)油菜对锑的富集转运特性[J].湖南农业大学学报（自然科学版）,2023,49(6):694-701,8.基金项目
国家自然科学基金项目(41907037、32371589) （41907037、32371589）
湖南省教育厅科学研究重点项目(22A0608) （22A0608）
湖南省重点研发项目(2021NK2030) （2021NK2030）
湖南省农业科技创新资金项目(2020CX84) （2020CX84）
湖南省高新技术产业科技创新引领计划项目(2020NK2001) （2020NK2001）
