Table 6.
Correlations among plant and soil parameters of senna pot experiment in slightly saline soil.
| Plant height | Leaf dry weight | Pod dry weight | Total herbage yield | Total sennoside | Soil pH | EC | Organic carbon | Mineral N | Available P | Available K | MBC | DHA | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Plant height | 1 | ||||||||||||
| Leaf dry weight | .821** | 1 | |||||||||||
| Pod dry weight | .922** | .848** | 1 | ||||||||||
| Total herbage yield | .857** | .996** | .894** | 1 | |||||||||
| Total sennoside | .146 | .056 | .039 | .054 | 1 | ||||||||
| Soil pH | .009 | −.064 | −.163 | −.083 | .259 | 1 | |||||||
| EC | .485* | .480* | .471* | .489* | .012 | .056 | 1 | ||||||
| Organic carbon | .131 | .152 | .284 | .178 | .055 | .091 | .129 | 1 | |||||
| Mineral N | .569** | .686** | .587** | .684** | .048 | .011 | .316 | .075 | 1 | ||||
| Available P | .740** | .658** | .704** | .680** | .057 | .146 | .043 | .128 | .604** | 1 | |||
| Available K | .751** | .798** | .814** | .818** | −.140 | −.231 | .623** | .176 | .570** | .391 | 1 | ||
| MBC | −.027 | .088 | .112 | .094 | −.027 | −.076 | −.096 | .877** | .077 | .051 | .023 | 1 | |
| DHA | −.182 | .023 | .039 | .027 | −.046 | −.012 | −.259 | .798** | −.034 | .014 | −.117 | .848** | 1 |