Table 1. Effect of four aluminum concentrations on relative root length (%) of 24 rice genotypes at 12, 24 and 48 h in the hydroponic assay.
| Rice varieties | Al(μM) | Relative root length (%) | ||
|---|---|---|---|---|
| 12h | 24h | 48h | ||
| Disang | 0 | 100.00±1.30 | 100.00±1.57 | 100.00±1.85 |
| 25 | 98.71±1.99 | 97.35±1.77* | 97.01±1.82* | |
| 50 | 98.18±1.43 | 96.64±1.79* | 96.41±1.22* | |
| 100 | 97.21±1.38 | 96.17±1.54* | 95.81±1.93* | |
| Swarna sub 1C | 0 | 100.00±1.26 | 100.00±1.23 | 100.00±1.42 |
| 25 | 99.32±1.62 | 98.22±1.53 | 97.57±1.43* | |
| 50 | 98.04±1.45 | 97.03±1.67 | 96.23±1.71* | |
| 100 | 97.12±1.61 | 96.01±1.20 | 95.06±1.03* | |
| Naveen | 0 | 100.00±1.40 | 100.00±1.54 | 100.00±2.16 |
| 25 | 99.26±1.52 | 98.96±1.96 | 98.88±1.22 | |
| 50 | 96.00±1.42 | 95.93±1.11 | 96.48±1.93 | |
| 100 | 95.22±1.38 | 94.98±1.30 | 94.84±1.26* | |
| KMJ-6-1-1 | 0 | 100.00±1.51 | 100.00±1.87 | 100.00±1.77 |
| 25 | 96.18±1.81 | 95.69±1.38* | 95.55±1.72 | |
| 50 | 95.49±1.86 | 94.51±1.94* | 93.54±1.97* | |
| 100 | 95.05±1.24 | 93.68±1.71* | 93.13±1.85* | |
| Tapaswini | 0 | 100.00±1.30 | 100.00±1.50 | 100.00±1.75 |
| 25 | 98.34±2.14 | 97.79±1.02 | 97.47±1.70 | |
| 50 | 96.86±1.54 | 96.83±1.92* | 95.55±1.34* | |
| 100 | 93.41±1.51 | 93.25±1.10* | 92.74±1.46* | |
| Badsahbhog | 0 | 100.00±1.98 | 100.00±1.94 | 100.00±1.49 |
| 25 | 98.60±1.96 | 98.33±2.09 | 97.13±1.37 | |
| 50 | 97.20±1.70 | 96.84±1.12 | 94.74±1.50* | |
| 100 | 92.91±1.67 | 92.67±2.02* | 92.39±1.51* | |
| Ranjit | 0 | 100.00±1.73 | 100.00±2.10 | 100.00±2.15 |
| 25 | 95.87±1.88 | 95.79±1.57 | 95.73±1.39* | |
| 50 | 94.25±1.90 | 94.33±1.99 | 93.99±1.90* | |
| 100 | 92.83±1.81 | 92.57±1.88 | 92.15±1.98* | |
| Lachit | 0 | 100.00±1.76 | 100.00±1.99 | 100.00±1.57 |
| 25 | 95.60±1.88 | 95.58±1.79 | 95.36±1.67* | |
| 50 | 93.14±1.97 | 93.07±1.74* | 92.58±1.55* | |
| 100 | 92.63±1.76 | 92.57±1.75* | 91.94±1.81* | |
| KMJ-6-1-2 | 0 | 100.00±1.90 | 100.00±1.93 | 100.00±1.21 |
| 25 | 98.24±1.59 | 98.19±1.13 | 97.64±1.31* | |
| 50 | 95.49±1.22 | 95.45±1.51 | 93.61±1.42* | |
| 100 | 93.43±1.27 | 93.39±1.17 | 91.51±1.38* | |
| Aijung | 0 | 100.00±1.97 | 100.00±1.81 | 100.00±1.35 |
| 25 | 99.77±2.04 | 99.50±1.72 | 98.89±1.22 | |
| 50 | 97.85±1.76 | 96.55±1.54* | 97.50±1.73 | |
| 100 | 90.96±1.52* | 90.89±1.44* | 90.74±1.86* | |
| Kola Joha | 0 | 100.00±1.23 | 100.00±1.28 | 100.00±1.21 |
| 25 | 94.19±1.19 | 92.98±1.56* | 90.15±1.38* | |
| 50 | 91.39±1.84 | 90.57±1.24* | 89.28±1.99* | |
| 100 | 90.42±1.23 | 90.09±1.42* | 88.47±1.98* | |
| Sahbhagi Dhan | 0 | 100.00±2.07 | 100.00±1.10 | 100.00±1.54 |
| 25 | 96.44±1.90 | 96.43±1.43 | 95.92±1.79 | |
| 50 | 91.66±1.15 | 91.64±1.65 | 91.16±1.59 | |
| 100 | 88.46±1.92 | 88.07±1.52 | 87.20±1.90 | |
| Cauveri | 0 | 100.00±1.48 | 100.00±1.37 | 100.00±1.87 |
| 25 | 99.30±1.40 | 95.48±1.35* | 95.35±1.84* | |
| 50 | 95.00±1.79 | 92.95±1.24* | 87.44±1.46* | |
| 100 | 92.50±1.58 | 87.40±1.44* | 86.80±1.57* | |
| Gautam | 0 | 100.00±1.32 | 100.00±1.75 | 100.00±1.74 |
| 25 | 97.67±1.68 | 96.68±1.54* | 96.66±1.27* | |
| 50 | 97.25±1.95 | 96.26±1.78* | 95.71±2.02* | |
| 100 | 86.93±1.53 | 86.88±1.66* | 86.64±1.35* | |
| Swarna | 0 | 100.00±1.84 | 100.00±1.32 | 100.00±1.91 |
| 25 | 98.44±1.12 | 98.43±2.01* | 98.41±1.17* | |
| 50 | 96.82±1.32 | 96.74±1.21* | 96.69±1.48* | |
| 100 | 86.62±1.34 | 86.27±1.26* | 86.20±1.13* | |
| Kapilee | 0 | 100.00±1.76 | 100.00±1.57 | 100.00±1.37 |
| 25 | 94.78±1.54 | 94.77±1.43* | 93.81±1.94* | |
| 50 | 94.07±1.71 | 89.53±1.87* | 89.49±2.32* | |
| 100 | 86.29±1.25* | 86.26±1.40* | 85.78±1.19* | |
| KMJ -2-1-4 | 0 | 100.00±1.47 | 100.00±1.29 | 100.00±1.12 |
| 25 | 97.79±1.90 | 96.20±1.26 | 95.63±1.90* | |
| 50 | 96.39±1.37 | 91.48±1.82 | 88.23±1.29* | |
| 100 | 93.12±1.58 | 87.80±1.96 | 85.13±1.76* | |
| Bahadur | 0 | 100.00±1.64 | 100.00±1.16 | 100.00±1.94 |
| 25 | 98.90±1.45 | 98.87±1.99 | 98.40±1.59* | |
| 50 | 93.35±1.81 | 93.24±1.75* | 92.93±1.37* | |
| 100 | 84.46±1.16 | 84.17±1.26* | 81.77±1.51* | |
| Mashuri | 0 | 100.00±1.61 | 100.00±1.07 | 100.00±1.89 |
| 25 | 90.37±1.32 | 88.95±1.37* | 88.25±1.60* | |
| 50 | 81.88±2.12 | 81.64±2.04* | 81.55±1.47* | |
| 100 | 79.96±1.37* | 79.49±1.72* | 79.26±1.55* | |
| Chandrama | 0 | 100.00±1.23 | 100.00±1.42 | 100.00±1.74 |
| 25 | 96.89±1.56 | 96.88±1.69 | 96.79±1.68 | |
| 50 | 79.87±1.63 | 79.43±1.96* | 92.49±1.85* | |
| 100 | 79.24±1.48* | 79.18±1.16* | 79.09±1.49* | |
| KMJ-10-1-4 | 0 | 100.00±1.02 | 100.00±1.33 | 100.00±1.20 |
| 25 | 95.93±1.45 | 95.90±2.66* | 93.44±1.98* | |
| 50 | 83.51±1.48* | 83.27±1.57* | 83.19±2.15* | |
| 100 | 78.97±1.57* | 78.92±1.67* | 78.82±1.96* | |
| CR Dhan 601 | 0 | 100.00±1.87 | 100.00±1.65 | 100.00±1.31 |
| 25 | 92.98±2.04 | 91.13±1.35* | 89.65±1.63* | |
| 50 | 82.15±1.17 | 81.84±1.44* | 81.82±1.68* | |
| 100 | 78.92±1.35* | 78.75±1.54* | 78.59±1.73* | |
| Tulsi Joha | 0 | 100.00±1.85 | 100.00±1.48 | 100.00±1.72 |
| 25 | 95.40±1.77* | 95.27±1.64 | 94.94±2.10* | |
| 50 | 81.80±1.68* | 81.78±1.98 | 81.74±1.64* | |
| 100 | 76.84±1.69* | 76.73±1.36* | 76.40±1.43* | |
| Joymati | 0 | 100.00±1.42 | 100.00±1.98 | 100.00±1.58 |
| 25 | 95.80±1.71 | 94.55±1.29 | 92.81±1.69* | |
| 50 | 79.41±1.31* | 78.49±1.73* | 77.18±1.54* | |
| 100 | 71.34±1.42* | 70.36±1.76* | 68.70±1.53* | |
Data presented are mean ± S.E. (n = 10).
Significant mean difference between control and stress plants were significant at P < 0.05 (*) by Tukey test.