Table 4.
The results and statistics of phenotypic evaluations of BC3F4 introgression lines and the recurrent parent Onice (A) and BC3F4 introgression lines and the recurrent parent Vialone Nano (B), tested in two experimental sites (Malalbergo and Vercelli). ANOVA and Dunnett’s test significant for p(F) < 0.05
| Variable | Unit | Site | Total avg | ANOVA | Dunnett's test | O1/all lines*100 (index)(b) | ||
|---|---|---|---|---|---|---|---|---|
| p(F) | Recurrent parent | O1 line(a) | LSD | |||||
| (A) | ||||||||
| Yield | Paddy 13% t ha−1 | Malalbergo | 6.21 | 0.075 | 6.46 | 6.76 | 1.18 | 109.6 |
| Vercelli | 10.1 | 0.022* | 10.6 | 10.6 | 2.94 | 104.2 | ||
| Plant height | cm | Malalbergo | 84.1 | < 0.01** | 74.3 | 74.3 | 7.97 | 86.9 |
| Vercelli | 100.2 | < 0.01** | 94.5 | 92.7 | 10.7 | 91.8 | ||
| Panicle lenght | cm | Malalbergo | 13.8 | 0.146 | 13.5 | 13.2 | 3.57 | 95.0 |
| Vercelli | 16.6 | 0.030* | 16 | 16.1 | 3.36 | 97.0 | ||
| Seed number | Number per panicle | Malalbergo | 71.2 | 0.766 | 72.2 | 69.0 | 20.0 | 97.2 |
| Vercelli | 92.8 | < 0.01** | 120.2 | 95.3 | 46.2 | 107 | ||
| Flowering | Days from 1st July | Malalbergo | 45.6 | 0.272 | 48.5 | 41.5 | 7.56 | 91.8 |
| Vercelli | 46.2 | < 0.01** | 43.0 | 47.3 | 4.55 | 101.3 | ||
| Sterility | Scale | Malalbergo | 1.19 | 0.707 | 1.0 | 1.0 | 1.43 | 82.6 |
| Vercelli | 1.13 | 0.410 | 1.0 | 1.0 | 1.09 | 87.7 | ||
| Variable | Unit | Site | Total avg | ANOVA | Dunnett's test | VN1/all lines*100 (index)(d) | VN4/all lines*100 (index)(e) | |||
|---|---|---|---|---|---|---|---|---|---|---|
| p(F) | Recurrent parent | VN1 line(c) | VN4 line(c) | LSD | ||||||
| (B) | ||||||||||
| Yield | Paddy 13% t ha−1 | Malalbergo | 6.26 | 0.09 | 6.42 | 6.08 | 6.35 | 1.82 | 97.1 | 101.4 |
| Vercelli | 9.34 | 0.17 | N.A.(f) | 8.51 | 9.33 | − | 93.3 | 102.3 | ||
| Plant height | cm | Malalbergo | 121 | 0.046* | 120 | 113 | 114 | 23.8 | 93.2 | 94.1 |
| Vercelli | 132 | 0.21 | 132 | 136 | 129 | 13.6 | 102.9 | 97.6 | ||
| Panicle lenght | cm | Malalbergo | 19.7 | 0.29 | 21.2 | 19.5 | 19.8 | 3.21 | 100.5 | 102.1 |
| Vercelli | 19.2 | 0.53 | 18.8 | 20.1 | 19.2 | 2.99 | 104.1 | 99.5 | ||
| Seed number | Number per panicle | Malalbergo | 120 | 0.87 | 128 | 110 | 117 | 51.2 | 92.4 | 98.3 |
| Vercelli | 120 | 0.23 | 104 | 123 | 138 | 47.5 | 101.7 | 114.0 | ||
| Flowering | Days from 1st July | Malalbergo | 48.5 | 0.018* | 48.5 | 49.0 | 50.5 | 6.38 | 101.0 | 104.1 |
| Vercelli | 52.7 | < 0.01** | 50.0 | 55.7 | 54.0 | 2.97 | 104.3 | 101.1 | ||
| Sterility | Scale | Malalbergo | 1.1 | 0.5 | 1.0 | 1.0 | 1.0 | 0.89 | 92.6 | 92.6 |
| Vercelli | 1.2 | 0.190 | 1.0 | 0.7 | 1.0 | 1.56 | 54.9 | 82.0 | ||
Asterisks indicate statistically significant differences (*p(F) < 0.05; **p(F) < 0.01)
(a)O1 introgressed line selected for the hydroponic assessment
(b)Average of O1 line/average of all Onice lines*100
(c)VN1 and VN4 introgressed lines selected for the hydroponic assessment
(d)Average of VN1 line/average of all Vialone Nano lines*100
(e)Average of VN4 line/average of all Vialone Nano lines*100
(f)N.A. not available