Table 3.
Estimates of genetic parameters for 14 characters of Withania somnifera based on pooled mean data of 2 years
| S. No. | Characters | Coefficient of variation |
Heritability (%) | Genetic advance | |
|---|---|---|---|---|---|
| GCV | PCV | ||||
| 1 | Plant height | 34.50 | 34.56 | 99.71 | 49.06 |
| 2 | Fresh root weight | 57.78 | 57.80 | 99.95 | 133.73 |
| 3 | Dry root weight | 2.83 | 3.09 | 83.40 | 0.084 |
| 4 | 1,000 seed weight | 38.56 | 39.06 | 97.50 | 0.309 |
| 5 | Total alkaloid % (L) | 35.59 | 36.27 | 96.25 | 0.332 |
| 6 | Withanolide % (L) | 113.243 | 113.643 | 99.30 | 0.965 |
| 7 | Withaferin A % (L) | 137.93 | 137.98 | 99.93 | 0.90 |
| 8 | Withanolide A % (L) | 314.46 | 317.98 | 97.80 | 0.206 |
| 9 | 12 deoxywithastramonolide (L) | 42.05 | 42.73 | 96.83 | 0.301 |
| 10 | Total alkaloid % (R) | 19.85 | 39.21 | 25.63 | 0.040 |
| 11 | Withanolide % (R) | 123.96 | 159.91 | 60.12 | 0.009 |
| 12 | Withaferin A % (R) | 83.29 | 85.62 | 94.63 | 0.110 |
| 13 | Withanolide A % (R) | 251.96 | 255.37 | 97.35 | 0.131 |
| 14 | 12 deoxywithastramonolide (R) |
63.70 | 63.82 | 99.62 | 60.06 |
GCV, genotypic coefficient of variation; L, leaves; PCV, phenotypic coefficient of variation; R, root