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铁盐双重胁迫下 ,苹果砧木Luo2和八棱海棠叶中叶绿素含量下降程度大于单因子胁迫的 ,叶绿素a/b(Chla/b)随着胁迫的加重而呈升高趋势 ,单一高盐胁迫和铁盐双重胁迫下 ,叶中Na含量大幅度升高 ,Fe、K含量明显下降。Luo2对铁盐胁迫的耐受能力强于八棱海棠
Under the dual stress of iron salt, chlorophyll content in leaves of apple rootstock Luo2 and Bailunchaotang decreased more than that of single factor stress, while chlorophyll a / b (Chla / b) tended to increase with the increase of stress. Under the dual stress of iron salt, the content of Na in leaves increased sharply, and the content of Fe and K decreased obviously. Luo2 is more tolerant to iron salt stress than Begonia