Table 5 Estimates of some Genetic Parameters for all Studied Traits in sugar beet accessions for the two growing seasons (2017/2018 and 2018/2019)
Genetic parameters | Studied traits | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
TSS % | Sucrose % | Apparent purity % | Root yield (Ton/Fed) | Top yield (Ton/Fed) | Sugar yield (Ton/Fed) | |||||||
2017/2018 | 2018/2019 | 2017/2018 | 2018/2019 | 2017/2018 | 2018/2019 | 2017/2018 | 2018/2019 | 2017/2018 | 2018/2019 | 2017/2018 | 2018/2019 | |
Mean | 20.17 | 20.08 | 19.30 | 19.17 | 95.66 | 95.51 | 25.23 | 25.31 | 13.0 | 12.76 | 4.85 | 4.84 |
Genotypic variance | 6.02 | 5.23 | 2.17 | 3.52 | 4.47 | 3.20 | 6.79 | 7.54 | 10.04 | 5.87 | 1.64 | 2.66 |
Environmental variance | 1.29 | 1.14 | 2.05 | 2.16 | 0.95 | 1.03 | 1.21 | 1.15 | 1.73 | 1.42 | 1.55 | 1.32 |
Phenotypic variance | 7.31 | 6.37 | 4.22 | 5.68 | 5.42 | 4.23 | 8.0 | 8.69 | 11.77 | 7.29 | 3.19 | 3.98 |
Heritability in broad sense | 82.35 | 82.10 | 51.42 | 61.97 | 82.47 | 75.65 | 84.87 | 86.76 | 85.30 | 80.52 | 51.41 | 66.83 |
(GCV %) | 12.16 | 11.38 | 7.63 | 9.78 | 2.21 | 1.87 | 10.32 | 10.84 | 24.37 | 18.98 | 26.40 | 33.69 |
(PCV %) | 13.40 | 12.56 | 10.64 | 12.43 | 2.43 | 2.15 | 11.21 | 11.64 | 26.39 | 21.15 | 36.82 | 41.21 |
D z | 1.24 | 1.18 | 3.01 | 2.65 | 0.22 | 0.28 | 0.89 | 0.80 | 2.02 | 2.17 | 10.42 | 7.52 |
GA or (Expected genetic advance) | 4.60 | 10.81 | 2.18 | 3.05 | 3.97 | 3.21 | 4.96 | 5.28 | 6.05 | 12.13 | 1.89 | 2.75 |
GAM or (Genetic advance as percentage of mean) % | 22.80 | 53.83 | 11.29 | 15.91 | 4.15 | 3.36 | 19.65 | 20.86 | 46.53 | 95.06 | 38.96 | 56.81 |