| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| luminescence intensity | 0.93 | 0.4 | 3252 | 33 | 22 |
| luminescence | 1.88 | 0.4 | 4920 | 4 | 12 |
| intensity | 0.96 | 0.5 | 2683 | 87 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| luminescence intensity | 1.46 | 0.7 | 8115 | 17 |
| luminescence intensity ratio | 0.92 | 0.6 | 4163 | 8 |
| luminescence intensity and fluorescence yield | 1.82 | 0.9 | 6669 | 66 |
| luminescence intensity/0.2 mm2 leaf area | 1.19 | 0.4 | 236 | 78 |
| fluorescence intensity and concentration | 1.31 | 0.7 | 4697 | 6 |
| mean of fluorescence intensity | 0.21 | 0.3 | 7251 | 38 |
| the fluorescence intensity ratio | 1.92 | 0.4 | 4784 | 28 |
