Calcium impact on phosphorus and its main bioindicators: response in the roots and leaves of tobacco
Calcium impact on phosphorus and its main bioindicators: response in the roots and leaves of tobacco
复制标题
钙对磷及其主要生物指标的影响：烟草根和叶的反应
DOI：
10.1080/01904169809365562
复制
发表时间：
1998
影响因子：
2.1
通讯作者：
L. Romero
中科院分区：
文献类型：
--
作者：
J. Ruiz;L. Romero
摘要烟草植物（Nicotiana tabacum cv Sevilla）在受控条件下生长，并接受常规施肥和宏量和微量营养素。本实验的目的是（i）确定施用高水平钙（Ca）[Ca：2.5 mM氯化钙（CaCl2·2H2O）和Ca 2：5.0 mM CaCl2·2H2O]对磷（P）及其主要生物指示剂的行为的影响，以及（ii）检查植物根和叶对这种影响的响应。在根和叶中分析Ca和不同形式的P（全P、无机P和有机P）的浓度、酸性磷酸酶活性、碳水化合物水平以及最终的干物质生产。结果表明，高浓度的钙，这一元素（Ca2）在培养基中的高应用的结果，影响根和叶的性能与P有关，减少这种元素的运输到叶片，可能反映了钙的影响，在根和叶的性能。
Abstract Tobacco plants (Nicotiana tabacum cv Sevilla) were grown under controlled conditions and submitted to regular fertilization with macro‐ and micro‐nutrients. The objectives of the experiment was (i) to determine the effect of the application of high levels of calcium (Ca) [Cal: 2.5 mM calcium chloride (CaCl2•2H2O) and Ca2:5.0 mM CaCl2•2H2O] on the behavior of phosphorus (P) and its principal bioindicators and (ii) to examine the response to this effect in the roots and leaves of the plant. The concentration of Ca and the different forms of P (total P, inorganic P, and organic P), acid‐phosphatase activity, the levels of carbohydrates, and finally the production of dry matter were analyzed both in the roots and the leaves. The results indicated that high Ca concentrations, the result of high applications of this element in the culture medium (Ca2), affected the root and leaf performance in relation to P, reducing translocation of this element to the leaves, perhaps reflecting the effect of Ca on th...