Diltiazem influence on calcium and aluminum absorption by roots of three sorghum cultivars |
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| Authors: | R. E. Wilkinson R. R. Duncan |
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| Affiliation: | Department of Agronomy , University of Georgia, Agricultural Experiment Stations, Georgia Station , Griffin, GA, 30223–1797 |
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| Abstract: | Calcium (Ca++) (10 mM) and Al+++ (10 mM) ions were applied unilaterally in agar to primary roots of sorghum [Sorghum bicolor (L.) Moench.]. Both Ca++ and Al+++ caused unilateral growth “inhibitions and induced root curvature in cv Funk G522DR, SC574, and SC283 (acid soil stress sensitive, tolerant, and tolerant, respectively). Diltiazem (0.1 mM) [3‐(acetyloxy)‐5‐[2‐(dimethylamino)ethyl]‐2,3‐dihydro‐2‐(4‐methoxyphenyl)‐l‐5‐benzothiozepin‐4 (5H)‐one] inhibited Ca++ absorption in Funk G522DR and SC283 but only partially influenced Ca++ absorption by roots of SC574. Aluminum ion absorption by roots was inhibited in SC283 and SC574 but not in Funk G522DR. |
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