Table 4.
Means of dry and fresh above-ground (Ag) and tuber biomass (g plant−1) at different developmental stages, and tuber amylose content (g plant−1) in “Dinamo” and “T-2012” and TAG content (nmol plant−1) in “Kuras” and “T-8003,” grown in the field (2015) and greenhouse experiment (2014).
| Field | Greenhouse | |||||
|---|---|---|---|---|---|---|
| Dinamo | T-2012 | Kuras | T-8003 | Dinamo | T-2012 | |
| Dry Ag biomass at tuber initiation | 28.23 A* (3.31)** | 18.91 B (2.80) | 7.12 a* (1.00) | 6.22 ab (1.22) | 4.60 ab (0.34) | 3.22 b (0.50) |
| Dry Ag biomass at flowering | 65.15 (12.43) | 50.15 (7.79) | 51.28 (1.38) | 48.92 (0.95) | 48.20 (1.80) | 50.82 (1.56) |
| Dry Ag biomass at final harvest | 33.03 (3.12) | 35.07 (7.10) | 62.51 (1.87) | 66.32 (2.79) | 66.23 (2.80) | 77.09 (5.43) |
| Fresh Ag biomass at final harvest | 55.95 B (10.19) | 111.74 A (14.51) | 386.9 c (18.06) | 425.3 b (6.73) | 446.2 ab (12.54) | 460.6 a (3.92) |
| Dry tuber biomass at flowering | 255.29 A (35.57) | 156.19 B (35.57) | 36.86 a (3.61) | 12.52 c (1.82) | 20.02 b (2.02) | 10.57 c (1.47) |
| Fresh tuber biomass at flowering | 462.08 (71.54) | 293.72 (40.90) | 149.74 a (17.27) | 89.83 b (13.38) | 98.13 b (7.96) | 80.66 b (11.59) |
| Tuber amylose or TAG† content (Menzel et al., 2015; Hofvander et al., 2016) | 60.34 B (4.90) | 117.88 A (14.22) | 61.53†b (35.26) | 500.4†a (50.67) | 14.31 a (2.29) | 11.54 a (3.07) |
*
Results of Tukey HSD test at α = 0.05.
**
Standard error (n = 5 in greenhouse; n = 10 in field).
†
Triacylglycerol.
Different letters indicate statistically significant differences between groups.