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首页> 外文期刊>African Journal of Biotechnology >Effects of aluminum on root growth and absorption of nutrients by two pineapple cultivars [Ananas comosus (L.) Merr.]
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Effects of aluminum on root growth and absorption of nutrients by two pineapple cultivars [Ananas comosus (L.) Merr.]

机译：铝对两种菠萝品种对营养素的根生长和吸收的影响[Ananas Comosus（L.）Merr。

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Aluminum (Al) is a biotoxic which often influences the absorption of nutrients by plants in strongly acidic soils. In this experiment, the effect of Al on root growth, absorption of macronutrients; phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) and micronutrients; iron (Fe), manganese (Mn), copper (Cu) and zinc (Zn) by two pineapple cultivars (ig. Al-resistant Cayenne and Al-sensitive Tainung No.17) were studied. Four levels of Al concentration treatments were imposed to the hydroponic solutions containing 0, 100, 200 and 300 μM AlCl3. After treatments with Al for four weeks, the root elongation of Cayeen was increased with Al concentration, however, Tainung No.17 was decreased. The dry weight of Cayenne and Tainung No.17 was increased and decreased with Al concentration, respectively. The absorptions of macronutrients and micronutrients were not affected in Al-resistant Cayenne. However, the absorption of Ca, Mg and K were inhibited when AlCl3?was 200 μM, and Fe, Mn and Cu absorption were inhibited significantly when AlCl3?was 300 μM in the Al-sensitive Tainung No.17. On the other hand, Ca, Mg and K absorption increased significantly in Cayenne when AlCl3?was 200 μM. It is possible that Ca, Mg and K uptake was an important clue for Al-resistant pineapple to resist Al in root.
机译：铝（Al）是一种生物毒性，其通常会影响植物在强酸性土壤中的植物的吸收。在该实验中，Al对根生长，莽莽的影响;磷（P），钾（K），钙（Ca），镁（Mg）和微量营养素;用两种菠萝品种（Ig.Al抗性Cayenne和Al敏感Tainung No.17）进行铁（Fe），锰（Mn），铜（Cu）和锌（Zn）。施加四种含量的Al浓度处理，施加含有0,100,200和300μmAlCl3的水培溶液。在用Al处理4周后，Cayeen的根伸长率随着Al浓度的增加，然而，Tainung No.17减少。 Cayenne和Tainung No.17的干重分别升高，含量升高。在抗性Cayenne中，Macronrients和微量营养素的吸收不受影响。然而，当AlCl3β为200μm时，抑制Ca，mg和k和k的吸收，当Alcl 3时，在Al敏感的Tainung 17中显着抑制Fe，Mn和Cu吸收。300μm。另一方面，当ALCL3时，CA，Mg和K吸收在Cayenne中显着增加？200μm。 Ca，Mg和K摄取可能是用于抗抗体的抗抗抗抗体的重要线索。

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