落叶果树2025，Vol.57Issue(5)：29-34,6.DOI:10.13855/j.cnki.lygs.2025.05.007
外源有机硒对碱胁迫下的苹果砧木生理生化的影响
Effects of exogenous organic selenium powder on physiology and biochemistry of apple rootstocks under alkaline stress
摘要
Abstract
Taking G935 apple rootstock seedlings as the test material,this study investigated the alleviating effect of exogenous organic selenium at three concentrations(5,10,and 20 g/kg)on the toxic damage caused by 90 mmol/L NaHCO3 stress.The results showed that,compared with the effect of alkali treatment alone,under the treatment of exogenous organic selenium,the relative electrical conductivity of the leaves of G935 apple rootstock seedlings decreased,the contents of two osmotic adjustment substances(proline and soluble protein)increased,and the activities of three antioxidant enzymes(superoxide dismutase,peroxidase,and catalase)enhanced.These effectively alleviated the physiological toxicity caused by alkali stress in G935 apple rootstock seedlings,among which the alleviating effect of organic selenium at the concentration of 5 g/kg was the most significant.关键词
G935苹果砧木苗/碳酸氢钠碱胁迫/有机硒效应Key words
G935 apple rootstock seedlings/sodium bicarbonate alkali stress/organic selenium effect分类
农业科技引用本文复制引用
张一诺,柏尧非,王宏蕊,赵文哲,吴琦杰,肖伟..外源有机硒对碱胁迫下的苹果砧木生理生化的影响[J].落叶果树,2025,57(5):29-34,6.基金项目
山东省果品产业技术体系(SDAIT-06-04) （SDAIT-06-04）
山东省重点研发计划(重大科技创新工程)(2021LZGC021) （重大科技创新工程）
山东省重点研发计划(竞争性创新平台)(2022CXPT017). （竞争性创新平台）
