李阳;黄梅;沈飞;郭海艳;王卿;

• 1:四川农业大学生态环境研究所
• 2:四川农业大学环境学院

摘要(Abstract)：

为明确生物炭对植物的毒性效应,以石英砂+生物炭水浸提液培养方法研究不同剂量生物炭对小麦种子萌发与幼苗生长的影响。结果表明:在不同剂量(0.0、10.0、20.0、40.0、80.0、160.0 g·kg~(-1))生物炭水浸提液处理下,虽然小麦发芽率较对照组无显著性变化(P>0.05),但根、芽生长表现出低剂量促进高剂量抑制,且在160.0 g·kg~(-1)时抑制率最大,分别为18.11%和22.22%。在幼苗的生长期(11 d),高剂量生物炭对幼苗根生长的抑制作用增强,160.0 g·kg~(-1)处理下抑制率显著增加至55.59%(P<0.05)。此外,当生物炭剂量较低时,小麦幼苗根、叶中超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)活力增加;随生物炭剂量的增加,3种抗氧化酶活力降低,丙二醛(MDA)含量升高,幼苗生长出现生理损伤,表现出明显植物毒性效应。

关键词(KeyWords)： 生物炭;小麦;种子萌发;幼苗生长;生理损伤

Abstract:

Keywords:

基金项目(Foundation): 教育部长江学者和创新团队发展计划(IRT13083);; 四川省教育厅重点项目(No.16ZA0043)

作者(Author): 李阳;黄梅;沈飞;郭海艳;王卿;

Email:

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