覆盖富集植物秸秆对葡萄幼苗镉积累的影响  

Effects of accumulator plant straw mulching on cadmium accumulation in grape seedlings

作　　者：王均[1] 李红艳 刘兴旺 王进[3] 刘磊[4] 王铤[4] 岁立云[4] 吕秀兰[3] 廖明安[1] 林立金[3] WANG Jun;LI Hong-yan;LIU Xing-wang;WANG Jin;LIU Lei;WANG Ting;SUI Li-yun;LYU Xiu-lan;LIAO Ming-an;LIN Li-jin(College of Horticulture,Sichuan Agricultural University,Chengdu 611130,China;Chengdu Longquanyi District Peace Primary School,Chengdu 610100,China;Institute of Pomology and Olericulture,Sichuan Agricultural University,Chengdu 611130,China;Chengdu Academy of Agriculture and Forestry,Chengdu 611130,China)

机构地区：[1]四川农业大学园艺学院,四川成都611130 [2]成都市龙泉驿区和平小学校,四川成都610100 [3]四川农业大学果蔬研究所,四川成都611130 [4]成都市农林科学院,四川成都611130

出　　处：《甘肃农业大学学报》2019年第4期92-99,共8页Journal of Gansu Agricultural University

基　　金：四川省教育厅项目(17ZB0342)

摘　　要：【目的】研究土壤覆盖富集植物秸秆对果树镉积累的影响.【方法】通过盆栽试验,将葡萄幼苗种植于镉污染的土壤中,并在土壤表面覆盖镉富集植物(多茎鼠麴草、荠菜、猪殃殃和小飞蓬)秸秆,研究了葡萄幼苗的生长及镉积累状况.【结果】与未覆盖相比,覆盖多茎鼠麴草和猪殃殃秸秆均提高了葡萄幼苗分生物量、叶绿素含量和抗氧化酶活性;覆盖荠菜和小飞蓬秸秆降低了葡萄幼苗的这些指标.覆盖四种富集植物秸秆均降低了葡萄幼苗的地上部分镉含量,较未覆盖分别降低了10.68%、4.36%、11.33%和55.55%.【结论】覆盖富集植物秸秆均能够降低镉胁迫下葡萄幼苗的地上部分镉含量,其中覆盖多茎鼠麴草和猪殃殃秸秆还有利于促进葡萄生长.【Objective】 To study the effects of accumulator plant straw mulching on cadmium(Cd) accumulation of fruit trees.【Method】 Grape seedlings were planted in Cd-contaminated soil which mulched with the straws of Cd-accumulator plants(Gnaphalium polycaulon,Capsella bursa-pastoris,Galium aparine and Conyza canadensis),and the growth and Cd accumulation of grape seedlings were measured.【Result】 Mulching with the straws of G. polycaulon and G. aparine increased the biomass,chlorophyll content and antioxidant enzymes activity of grape seedlings,while they were decreased by mulching with C. bursa-pastoris and C. canadensis straws compared with the control. Compared with the control,mulching with the straws of four accumulator plants decreased the Cd content in shoots of grape seedlings by 10.68%,4.36%,11.33% and 55.55% respectively.【Conclusion】 Mulching with the straw of accumulator plant could reduce the Cd content in shoots of grape seedlings under Cd stress,and mulching with G. polycaulon and G. aparine straw benefited the growth of grape.

关 键 词：葡萄幼苗 富集植物 秸秆 镉 

分 类 号：S663.1[农业科学—果树学]