【摘要】 本文通过Ca²⁺、PEG预处理研究水分胁迫下小麦幼苗硝酸还原酶（NR）活性的变化。结果表明,Ca²⁺、PEG处理可明显提高水分胁迫下小麦幼苗的NR活性,增强吸水、保水的能力,对植株生长的抑制减轻。更多还原

【Abstract】 This paper study the change of nitrate reductase （NR） activity of wheat seedling with Ca²⁺ PEG pretreatment under water stress.The results showed that NR activity,absorption and preserve water capacity in wheat seedling were increased with Ca²⁺, PEG pretreatment,and plant grow th inhibition was decreased under water stress.更多还原