Reduction of Aluminum-inhibited Root Growth of Rice Seedlings with Supplemental Calcium, Magnesium and Organic Acids

氯化鈣、氯化鎂與有機酸對氯化鋁所抑制水稻幼苗根生長之影響

王振武(Jen-Wu Wang) ； 高景輝(Ching-Huei Kao)

《作物、環境與生物資訊》 1卷3期 (2004/09) Pp. 191-198

https://doi.org/10.30061/CEB.200409.0004

摘要

氯化鋁溶解於半量之木村氏B水耕液抑制水稻根生長之能力低於氯化鋁溶解於蒸餾水中。木村氏B水耕液內含有無機鹽與有機酸，因此我們探討氯化鈣、氯化鎂與有機酸對氯化鋁所抑制水稻幼苗根生長之影響。試驗結果顯示，氯化鈣、氯化鎂、磷酸氫鈉與有機酸（Citrate、malate、tartarate及oxalate）可降低氯化鋁所抑制水稻根之生長。氯化鈣、氯化鎂與有機酸之效應係經由其降低水稻根內鋁之含量所造成。

關鍵字

氯化鋁 ； 氯化鈣 ； 氯化鎂 ； 有機酸 ； 水稻 ； 根生長

並列摘要

AlCl3 dissolved in half-strength Kimura B nutrient solution was observed to be less effective in inhibiting root growth of rice seedlings than that dissolved in distilled water. Kimura B nutrient solution is composed of inorganic salts and citrate. Thus, we investigated the influence of inorganic salts and organic acids on AlCl3-inhibited root growth of rice seedlings. It was observed that CaCl2, MgCl2, N aH2PO4, citrate, malate, tartarate, and oxalate were able to reduce AlCl3-inhibited root growth of rice seedlings. Results suggest that the effect of CaCl2, MgCl2, and organic acids on AlCl3-inhibited root growth is mediated through reducing Al level in roots of rice seedlings.

並列關鍵字

AlCl3 ； CaCl2 ； MgCl2 ； Organic acid ； Rice ； Root growth