张恒涛;许雪峰;王忆;李天忠;韩振海;

• 1:中国农业大学园艺植物研究所/北京市果树逆境生理与分子生物学重点实验室
• 2:中国农业科学院郑州果树研究所

摘要(Abstract)：

利用分根技术在水培条件下研究了半根供铁对苹果砧木幼苗生长的影响。结果表明,一半根系供铁不仅未影响植株对铁营养的需求,甚至在处理初期植株的铁吸收总量和铁吸收速率还略有提高。一半根系供铁苹果砧木小金海堂和山定子叶片活性铁质量分数均未降低,而且与对照相比无叶片黄化的现象。因此,通过半根供铁的方式来改善苹果砧木幼苗的生长,为进一步研究砧木缺铁适应性反应的调控部位打下基础,也为今后缺铁的矫正和提高铁素利用效率提供了一条新的思路。

关键词(KeyWords)： 苹果砧木;分根处理;缺铁胁迫;黄化

Abstract:

Keywords:

基金项目(Foundation): 科技支撑计划(2008BAD92B07);; 行业计划(nyhyzx07-24)

作者(Author): 张恒涛;许雪峰;王忆;李天忠;韩振海;

Email:

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