Waldren S, Etherington J R, Davies M S
Department of Plant Science, University College, P.O. Box 78, Cardiff CF1 1XL, UK.
New Phytol. 1987 Aug;106(4):689-696. doi: 10.1111/j.1469-8137.1987.tb00169.x.
Geum rivale L. and G. urbanum L. were grown in drained, continuously flooded or transiently flooded compost for 21 weeks. Leaf and root material harvested after this time was analyzed for Fe, Mn, Ca and P. Mn and Fe concentrations in roots and leaves of both species were increased by flooding. Higher Fe concentrations accumulated in the roots, while Mn was present in roughly equal concentrations in both roots and leaves. Leaf Ca concentration of both species was higher than that of roots. Although Ca concentrations were significantly higher in G. rivale than in G. urbanum, there were no readily interpretable effects of waterlogging. P concentration was decreased in leaves and increased in roots of flooded G. urbanum, although there was much less effect of flooding on P concentration in G. rivale. Fe may be precipitated by phosphate in G. urbanum roots, but this may lead to P deficiency in shoots and roots, resulting in poor growth of this species in waterlogged soil. A different mechanism of Fe immobilization is likely to occur in G. rivale, which does not result in phosphorus deficiency.
水杨梅和城水杨梅在排水良好、持续淹水或短暂淹水的堆肥中种植21周。在此之后收获的叶和根材料进行了铁、锰、钙和磷的分析。两种植物根和叶中的锰和铁浓度因淹水而增加。较高的铁浓度积累在根部，而锰在根和叶中的浓度大致相等。两种植物叶片中的钙浓度均高于根部。虽然水杨梅中的钙浓度显著高于城水杨梅，但涝渍并没有明显可解释的影响。淹水的城水杨梅叶片中的磷浓度降低，根部的磷浓度增加，尽管淹水对水杨梅磷浓度的影响要小得多。铁可能在城水杨梅根部被磷酸盐沉淀，但这可能导致地上部和根部缺磷，从而导致该物种在涝渍土壤中生长不良。水杨梅可能发生不同的铁固定机制，这不会导致磷缺乏。
