Department of Vegetable Crops, University of California, Davis, California 95616.
Plant Physiol. 1969 Aug;44(8):1108-14. doi: 10.1104/pp.44.8.1108.
Four soybean genotypes (Glycine max L. Merrill) differing in their ability to accumulate iron were studied: the efficient genotypes Hawkeye (HA) and A62-9 (E-9) and the inefficient genotypes PI-54619-5-1 (PI) and A62-10 (I-10).The distribution of iron in the tissues of plants grown in a growth chamber in nutrient solutions containing various levels of iron was determined. A greater amount of iron was associated with the roots of inefficient plants than with roots of efficient plants, indicating a slower rate of iron translocation in the former. After determination of the amount of iron in the shoots at low levels of nutrient iron, the ability of the several genotypes to accumulate iron was rated HA> E-9> I-10>/= PI. At the highest level of nutrient iron the rated efficiencies were E-9> HA> I-10> PI. Accumulation of iron in the primary leaves provided an excellent indication of whole-plant iron accumulation. A reduction in accumulation of iron by efficient plants occurred when the plants were grown together in the same solution as inefficient ones.
研究了 4 种大豆基因型（Glycine max L. Merrill），它们在积累铁的能力上存在差异：高效基因型 Hawkeye（HA）和 A62-9（E-9）以及低效基因型 PI-54619-5-1（PI）和 A62-10（I-10）。在含有不同铁水平的营养液中，在生长室中生长的植物组织中的铁分布情况。低效植物的根中铁的含量比高效植物的根中铁的含量多，这表明前者铁的转运速度较慢。在确定低水平营养铁下地上部分的铁含量后，对几种基因型积累铁的能力进行了评价，结果为 HA>E-9>I-10>=PI。在最高水平的营养铁下，效率等级为 E-9>HA>I-10>PI。在初生叶中积累铁可以很好地指示整个植株的铁积累。当高效植物与低效植物一起在同一溶液中生长时，其铁的积累量会减少。
